Verifying Crankshaft End Play after Transmission Install
I put my build on hold for the last 2 weeks while I digested and sorted this out.
If you want to get to the meat of it and skip this just play the video but here is the back story. Some of it is in the video but this is the full story.
My father-in-law who had helped me on the rear suspension and some heavy lifting really wanted to install the engine with me. After bleeding the brakes with my wife, I called him up and we agreed to install the engine when he was back in town. So on a Friday afternoon, I got off work early and we got together. Roush had represented to me under a salesman that has since retired that it would come with instructions on how to install it. I thought I was going to get the type of manual that Factory Five has made. What I got was Tremec's install sheet (no pictures), Quicktime Bell Housing's install sheet and some engine data about the Dyno. If you've read Tremec & Quicktime's install sheet they are basically worthless.
So I called Roush, got the sales manager Dennis Corn on the phone. Super nice guy who explained that this type of thing is passed down basically with verbal and hands on experience and that no one writes an install guide to these things. But he was so patient and nice and promised me he would teach me. Between what was available on the internet and his explanations we were going to get this engine in. So he left me with some homework. The homework was to lay out everything on the floor and work bench of my garage and get familiar with the parts. Well that's what we did Friday afternoon. I have an older 27" iMac in my garage and that same afternoon started to pull up YouTube videos on how to put the clutch fork on the bell housing, the housing on the transmission and transmission to engine and naturally we started mocking up everything and researching and realizing we were short certain Grade 8 hardware (I talked about in my previous post) which I went out and bought that evening. The next afternoon we met back up and we assembled and installed everything and installed the engine into the car but the engine wouldn't fully seat on the chassis mounts which we resolved Sunday (long story how I got it but if you run into trouble I can explain).
Anyway, Dennis called me Monday morning first thing and we ended up connecting Tuesday morning. I told Dennis about my Extra Credit! He was really excited and happy for me. Very encouraging guy. But what came next really felt like a punch in the gut. I was sick. He said, "did I check to make sure that after I installed the transmission to the engine that the crankshaft still had between 0.005" - 0.010" of endplay in it?" Naturally I asked why and he said, "because in rare instances after installing the transmission, the transmission input shaft can bind on the crankshaft and force the crankshaft forward and press it against the thrust bearing, and if I ran the engine like that I would blow out the thrust bearing and I would be in for a rebuild at my expense." He left me with, "go research it." Even as I type this it makes me sick to think that could happen. It was a real possibility that I could blow thousands of dollars and hundreds of man hours of work.
Now you have to put yourself in my shoes because I've never done any of this so my mind goes to worst case scenario. If something was wrong I'd have to pull my engine out of my car and it wasn't a cake walk getting it in. Well I did a quick google search and then another and another and could not find anything about checking the endplay after the transmission was installed. So I called Factory Five and Dave B. whose been building engines for the last 25 years explained to me how unlikely it would be that such a situation could arise but he couldn't find a reason not to check the endplay. We talked about it for like 30 or 45 minutes, Dave is the BEST. I called 3 other reputable people here in Los Angeles. One guy basically said the same thing as Dave. Another guy said he does the check regularly and another guy said the chances of binding are very small but why not check.
I got the impression no one was going to say, "you're good to go" and have blood on their hands. Unprompted all of them came up with the same method of testing and I was careful not to give anyone any ideas so that way my information was pure. All said get a pry bar, wrap it in padding of some sort and place the pry bar behind the harmonic balancer and see if I could move the crankshaft forward and then backward by putting the pry bar behind the flywheel through the starter hole and pushing the crankshaft backward using the bell housing backplate to leverage off of. They said you can see it. I can tell you my eyes aren't good enough to see it (I have perfect vision but I don't have a microscope for eyeballs). The last guy explained to me how to measure it which I covered in the video. That's something I can get behind, DATA! No one could describe to me how much force it would take but the consensus was "not very much." I can confirm this. It doesn't take much at all. Some said this is a problem in automatic transmission applications others said this is a Chevy issue but everyone said CHECK IT. So I used a micrometer and stand from Harbor Freight. So I did the test, and there is endplay, and it's the proper amount. THANK HEAVEN! Learn from me and do this check before you install your engine/transmission into the car it will save yourself the agony of pulling your engine out if there is a problem. Piece of advice, attach the mount for the micrometer to the oil pan. If you've already installed your engine into the car, do not place the mount on the chassis. Luckily there wasn't any issue with endplay in my case and I can continue building!
Sorry for the blinding polished parts on the engine :cool:
https://youtu.be/qJQ5UpHsVc4
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Parts on Order & Looking Forward
Parts on Order:
So after installing my engine I've been taking some time to just stare at it and understand what I'm up against. Understand the plumbing job to come. I intend to finish out the radiator sheet metal, mount the radiator and AC condenser. Then plumb everything, not sure if I am going to tackle the dashboard or electrical after that but plenty of time to decide.
But now after my engine is installed I see a problem with the location I put my filler neck. It's too low... I will certainly have air in my system. So I looked for a solution, the good news is, the problem has been solved for me, bad news is I might have to remake that engine panel after relocating the filler neck unless I can fit my power steering reservoir in that position. Anyway, my good friend who lives down the street owns a Cobra, it's got a name 427Blur. It's on FFCars. Anyway he wasn't the original builder but he was having some overheating issues with it. He took it to a guy, Penzer Auto Concepts in Monrovia, CA who fixed the issue. The trick is getting the filler neck at its highest possible point. In the case of the Daytona and Cobra that's tough to do with a 351W block. So I looked to my friends car to find the genius solution and luckily I have pictures of his engine at different points in time to reference.
Before the fix
Attachment 118526
After the fix
Attachment 118525
What we are looking at is he moved the filler neck to the intake manifold like a Chevy. I googled and googled and googled, hours of googling for 2 nights straight, I thought I would find it and I couldn't. So yesterday I stayed at home with my son who has been sick with a bug, it was nice to take some time to be with the cuddly guy and just hang. During nap I snuck into the garage and it came to me, if anyone knows what this thing is it's going to be Mark from Breeze Automotive and.... Of course he did! He said it was made by Cobra Earl who isn't around anymore but with a little research we were able to find it. Mark doesn't sell it but he knows all things, so lots of praise to him! It's now made by TD Motion and it's called:
Sold as a Kit:
302 – 427W FORD ULTRA THERMOSTAT HOUSING KIT
Sold as an Adapter:
BILLET FORD / GM THERMOSTAT HOUSING THERMOSTAT HOUSING – 302-351W
I opted to buy the adapter and one can buy the Chevy Intake Manifold Filler Neck from Jegs or Summit made by a number of different manufactures (I opted for JEGS Intake Manifold Fill Neck Kit Polished and value engineered my purchase as theirs was on super sale for the holidays and I already have a filler cap I like)
Notably I also ordered Vintage Air Gen IV Servo Heater Control Water Valve Kit. This is to replace the Thermotion valve supplied by FFR because a 351W doesn't require a bypass style valve like the Coyote does which eliminates more stuff and I intend to put this valve in between the bulkhead and the AC unit so under the dash eliminating clutter in the engine compartment. Question is will it work with the heater control supplied by FFR? Will it fit in the space?.... Stay tuned.
Lastly I am changing out the supplied heater bulkhead connectors with these:
Beduan 5/8'' Hose Barb Thru-Bulk Bulkhead Straight Hex Union Stainless Steel Fitting
Anyway, I'm confident the Filler Neck Manifold Adapter will work, (which is the keywords I kept googling and coming up short on) but before you go on a buying frenzy give me some time to sort out the other parts and see if things work or not but this is the direction I am heading.
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Another Problem, Another Solution
I'm pushing these short updates rather than holding back right now because I am hoping it will help someone at a similar point. Also I am aggregating my research findings to this thread so it can be a one stop shop of sorts for these common questions that are spread out over multiple threads and posts. I am finding my answers but it's required searching around.
Tremec TKO600 Tail Shaft Donut
So I posted a question HERE as it relates to the backend of my transmission where the drive shaft inserts. When I posted the question, I knew the driveshaft went in somewhere but didn't understand what I was looking at. I installed my engine not knowing what was what, figuring I would address it later. This is the part where you probably are like... How the hell is this guy building a car knowing literally nothing about cars?....:confused: The answer is research! and Paul's brilliant explanations :). So here is what we are looking at.
Attachment 118581
The shipping seal commonly called a donut needs to move out of the way. As I understand it, it needs to come out or get pushed in. Jumping straight to the point, I took mine out. If you notice it is sitting proud of the rear seal and so I could easily grab it with a vise grip from it's inner portion/ inner diameter, staying clear away from the rear seal (that's the outer most piece of rubber). I spoke to Tremec and they said it can be removed or it can be pushed in and they recommend pushing because a lot guys mistake the rear seal for the donut and attempt to rip the rear seal off the transmission.... Or get so crazy about taking the donut out that they damage the rear seal with screwdrivers and pliers and the like. Mine was a perfect candidate for removal so that's what I opted for.
In some cases the donut does not sit proud as it did in mine and is recessed as in this example found HERE
Attachment 118584
It becomes very difficult to remove and thus pushing it in might be the better option but here is where my hands-on knowledge now comes in. It's rubber and it wants to hold onto that tail shaft for dear life. It's stretchy and so when you pull on it, it doesn't really move, it just stretches. Patience here is key cause if you damage that seal it's a sad day. I just took my time with it and it came out working various sides. Now if I understand physics, pushing it in is likely just as difficult as pulling it out so I'm not sure how that would be even possible because it wasn't easy getting it out and not damaging something but I guess it is since it's recommended but the internet is filled with frustrated guys dealing with this issue.
For reference here is it naked, without the donut
Attachment 118582
Here is the donut
Attachment 118583
Notice the outer ridge on the donut, well there is an inner ridge on the rear seal so those ridges touch which is another reason why I don't understand how it can be pushed in without damaging something but clearly if they recommend it, it's possible. And just to note the metal thing in the center is the tail shaft, and from what I can tell that hole in the middle isn't for anything. But the driveshaft slides in there and fits over that tail shaft and displaces that donut.
I decided to explain this because I know I am not the only one who has this question or is/was confused so I might as well swallow my pride and admit I could have benefited from this explanation honestly.
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TD Motion Filler Neck and Vintage Air Heater Servo Valve
TD Motion Filler Neck
This part is my savior, without it I would have had over heating issues for sure. As I said in my previous post, I bought just the adapter rather than the whole kit so I could choose my own GM/Chevy manifold filler neck/ thermostat housing (that’s what a lot of parts distributors call it) and it was a little cheaper to do it that way because of the holiday sales. Some interesting things to note:
1. You will need a new gasket after taking off the old intake manifold water inlet. I ask TD Motion if I could buy one from them and they gave me one at no charge. Don’t reuse the old gasket.
2. Due to a combination of factors I had a small issue. I have AC and Power steering and the working room for the adapter I couldn’t get a wrench on the provided 5/16 x 1” and the 5/16 x 1.5” hex head bolts (particularly the 1.5” one) so I purchased stainless Allen style bolts in the same sizes. Fixed the issue.
3. The hose that came with my engine that connects the water pump to the TD Motion adapter was not compatible so I bought a pre-bent 5/8” heater hose. Total rip off frankly at $15.
4. The 1/4” barb fitting that came with my Jegs filler neck I swapped for an AN fitting so it will match the stainless braided lines in the rest of the car. Also the thermostat housing I bought had 3 ports in the back for a heater connection I presume... I plugged all 3 for now till I tackle that later in the build. Not sure if the heater hose comes off that or off the top of the intake or either. I still need to review the schematics. To be continued...
The install process is straightforward what I didn’t fully grasp was the orientation of the thermostat, I took a picture and sent it to Danny Penzer and of course I had it upside down so he saved me. Thankfully I had the foresight to ask someone. He also gave me a pro tip and said drill 1/8” holes opposite each other so I have a small bypass. Since he fixed my buddies car and it runs great I have no reason to question his judgement here. The correct orientation looks like this:
Attachment 118918
Final install looks like this:
Attachment 118925
Vintage Air Heater Valve and 5/8” Barb Bulkhead Fittings
The Stainless 5/8” Barb Bulkhead fittings worked great. It saved a ton of room compared to the FFR provided bulk head fittings. It’s just needed on the heater side for this particular application. Just to note I think the Termotion valve will fit behind the dash with some coercing. The problem is I didn’t have foresight to but it behind the dash. I was drilling holes per the directions and I didn’t think this many steps ahead. The thermotion bypass valve has offset connectors and would require the holes to be drilled in a different places. I didn’t realize all this until after my panels were powered coated and permanently installed. But the Vintage Air valve is the perfect fit. However the particular valve I bought might not be the perfect solution for everyone and here is why. The valve I bought is open or closed it can't be regulated. So it all the way open or all the way closed. They do make one that can be regulated it’s marginally more expensive but like the thermotion valve it requires a control module and dial. I don’t mind buying the other one and returning this one but I’m thinking about how I want my car to look and I want it to be super clean, free of clutter and this might be a blessing in disguise because I can install a simple on-off-on toggle switch for my AC and Heat. Also I live in Southern California and it’s summer here like 360 days out of the year. Also I imagine that 427 is going to be warm despite all the lizard skin insulation I put in. Okay enough with the justification let’s move on. Here is how it looks installed:
Attachment 118920
Here is how it works. The red wire if for 12v power. The black wire is permanently grounded and this tells the valve to stay closed. The blue wire is going to be on a relay and switched to ground. When the switch is activated the valve opens and hot coolant comes into the heater and begins to flow through. The small block ford does not require a bypass valve so this application is very good. Without the Barb style bulkhead fittings in either the vintage air or thermotion the behind dash application isn’t possible. It wouldn’t have enough room.
On to mounting the AC dryer and power steering reservoir (coming today in the mail). I’ll plumb everything and then on to the radiator sheet metal.
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Thought Capsule 2.0 & Hose Mock Up
Thought Capsule 2.0
Sorry guys not a lot of pictures in this one, more like an entry into my build journal.
So as you might have read I’ve taken some design liberties under the hood and with my seat design. One area of the car I’ve lamented is the dash. The gauge layout is packed in one corner. The gap between the trans tunnel and the dash leaves room for improvement as others have done. Though the FFR supplied GPS gauges are nice they aren’t going to work for this level of build. I would have liked to use them but there are a few problems with them from a design perspective. One is they lack dimension, two is they are back lit and not side lit and lastly they are just too generic for this build, they don’t have enough character. In early December, I visited North Hollywood Speedometer (when I did a restomod '64 VW Bug more than a decade ago I bought my gauges there) and Ralph the owner and I spent an hour talking through my options. What we’ve tentatively decided was, we need to get some original Smith’s Gauges and restore and customize the faces. I love nice watches. My favorite brand is IWC and the way they make and design watches is very inspiring. The watches I love use dimension, raised Arabic numbers, crisp fonts. Their Pilot's chronograph and Portuguese Chronograph are great examples of this. What does this have to do with Smith's gauges? Well, they aren't 1 dimensional like the gauges that come with the kit. They have raised and lowered sections of the dial face, so this should help give some dimension to a very flat and boring dash. Also black gauges aren't going to cut it here, we need something that plays off the seats, interior leather and silver powder coated metal feel. So brown gauge faces are what I am going for and just to pull in the outside color in, maybe a blue clock, could add a nice contrast. There are some other ideas I have to make it more classy and high end but I'll leave those a surprise. We are going to start this mid January and it will take several months to work through, design and fabricate.
Rewinding to November. I began to develop some really great connections through my brother, one is a guy named Dorian Valenzuela he owns a shops called DV Mechanics and he is known for his impeccable Alpha Rameo restorations (he's helped answer some engine and mechanical questions for me) and the other guy is Tim Gregorio. I really like the the dimpled kick panels and floor boards on the Singer Porsche as I mentioned in my preview post. So I was looking at reverse engineering what they had done with theirs and I was having my brother look at pictures of their interior with me and we were talking about the rubber domed pieces in the floor board and my brother says, “let’s ask Tim.” I couldn’t believe he knew someone there. Anyway as it turns out Tim is the head of client relations at Singer and he was there when Singer got its first roots. So my brother connected Tim and I and we talked and as it turns out we actually live very close to each other, so a week or so ago he came over to my house and took a look at my car.
The timing couldn’t have been better. Tim brought so much knowledge to the design process it’s amazing. While I was interested in placing my gauges and laying them out and talking design, Tim was more interested in my seating position. He asked if I was going to use the FFR supplied steering wheel. I told him I wasn’t planning on it. So he said I should get my desired steering wheel on first. Get my seating position dialed in and then layout the gauges so they aren’t obstructed. Absolutely genius! Seems obvious now but it wasn't obvious to me at the time, that's for sure.
It was also nice to bounce ideas off of someone who does this at such a high level. One of their cars starts at $400,000 is my understanding and they have like a 4 year waitlist. But even better than all this was to just talk shop and cars with a guy who knows so much about them. Everything from a Tiguan to a $400,000+ 911. So I just want to thank him for his time and I definitely got a lot out of our meeting and also it was nice to know I am heading in the right direction. Tim was kind enough to offer to come back and we can figure out the gauge layout once I get my gauges set from North Hollywood Speedometer. Also I'm starting to think about AC ducting and vents and how I want that to be laid out.
While all this percolates I’ve gotta finish the plumbing....
I did order my steering wheel. I got the Momo Grand Prix and Russ Thompson is going to modify the hub to match the bolt pattern
Attachment 119783
Hose Mock Up
So I really don't want to see hoses and wiring everywhere, even a clean plumbing and wiring job it's what I'm after, I'm after concealed. I have been figuring out my hoses and fittings working through the various sizes, styles, etc. But now I've got everything ready to go. I've got my power steering rack converted to AN fittings, my heater fittings installed on my intake, I have my power steering reservoir mounted in the former position of my inline radiator neck. All hoses exit and enter on the passenger side down a single path. I mocked up everything in scrap wire, VF Sales will cut and assemble the hoses for free because I bought the fittings and hose from them. I label the wire, what area of the car it's for, what fittings it goes to and from, and VF Sales will cut the hose to length based on the length of the wire and assemble it to the fittings. If you open the thumbnail you can see the path of travel of the wires. What goes where. Once I get the hoses made I'll get you guys better pictures of the path of travel. I'm just illustrating the process here.
Exposed:
Attachment 119781
Concealed:
Attachment 119786
I’ll give an update mid January once all the parts come back in from the various vendors. Happy New Year!
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Fixing Big Issues, Modifying the Motor Mounts, Transmission Mounting
REWIND!:
I am going to keep this short and to the point.
Remember when I said here, "I had a real issue getting the engine mounts to line up, it took hours to get it just right. In fact I stepped away from it Saturday and came back Sunday with a fresh head and strength and got everything seated. My advice here is get the passenger side mount dowel pin and stud seated first. Then work the driver's side."
Well here is why!
On the block just below the mounting points is a buttress. It is meant to strengthen this area.
Attachment 121072
This buttress interferes with the motor mount causing a 1/8" gap. That gap is enough to cause huge issues. One issues is its going to be extremely difficult to marry the mount to the mounting points on the car. Secondly, the transmission will not align. See picture of gap.
Attachment 121074
The solution is to trim the mount in my opinion. FFR said shave the engine block. Roush said modify the mounts. I went with Roush on this one because it's cheaper to replace motor mounts than the block if I screwed up.
Attachment 121075 Attachment 121076
The result after install was night and day. My new philosophy with this build is 1mm might as well be a mile. That's the difference this made. The process was, I suspended the engine in place with the engine hoist and removed the motor mounts, shaved them, tested them, shaved them, tested them and so on until they sat flush, reinstalled them, and the engine glided into place. 3 days of fighting alignment to get my engine in previously, took 3 seconds this time, no exaggeration. Once again I have swallowed my pride and hope you learn from my issues.
Transmission Mounting:
The directions are hard to tell but if you are doing a SBF (289,302,351, blah blah blah) & TKO600 pay attention here. The directions to me and to everyone else that have looked at them show the L shaped flange at the end of the transmission mount facing down.
Attachment 121077
WRONG! IT FACES UP!
Attachment 121078
When it's down the transmission is cocked off to one side dramatically, when its up it's correctly aligned.
INCORRECT RESULT: - FACING DOWN
Attachment 121079
CORRECT RESULT - FACING UP
Attachment 121080
I have little dignity left at this point... But I great sense of accomplishment! :D ONWARD! I am glad to put this behind me and moving forward.
This is likely my last update until after my sinus surgery. So look for something middle to end of February. From here I am confident the build will speed up my goal is to have my gauges being made and my sheet metal at powder coat while I recover so that time is productive.
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Plumbing Done! Well almost... and Cockpit sheet metal started
Last of the Plumbing
I just couldn't wait any longer so I continued on without the parts from Boig but it does sound like they will be shipping imminently. Also there was a miscommunication with Billet Specialties on their AC compressor. There is a manifold that attaches to the compressor that drops the AC lines from the top of the compressor to the bottom. The directions say, don't mount the manifold until the AC system is ready to be charged. I called them because if I waited that long I would have an issue installing it because my radiator hose would interfere. They said it was fine to install now, they just like people to wait because when installing the engine they don't want compressor oil to leak everywhere which makes sense. I had the last two fuel hoses made that go between the bulkhead and the EFI system, so plumbing is almost done, here is my final punch list before filling everything with fluids. It's very clean and I couldn't be happier.
Cooling system - Waiting for Cooltubes
Engine - Waiting on Oil Pressure sender for Smiths Gauges
AC system - Ready for Refrigerant
Fuel system - Ready For Fuel
Transmission - Ready for Fluid
Power Steering - Ready for Fluid
You will likely notice I moved around some of the fittings on the AC system before finalizing everything. I did this to get everything way from the headers. Everything got a nice polish on it and is ready to go. One of the AC lines that runs from the compressor to the condenser was installed and cut to length but the compressor side hadn't been crimped. My vise is mounted on a large chunk steel that I rubberized. The plus side is that I can move it around, down side is it's strong but not as strong as being mounted to a bench. So I moved it over to the car and set it on the frame tubing and crimped the -8 fitting right on the car. I realized after doing that, that I could have just clamped the AC crimper to the frame but hindsight is 20/20 and the job is done.
Attachment 123934 Attachment 123935 Attachment 123936 Attachment 123937
I am very pleased with the final product.
Interior Cockpit Sheet metal
I moved on and finished drilling all the floor pans, and cockpit area, the riveting is by far my least favorite part of this project. I put the body back on per David's advise and I am am ready to mount the seats. I should have this done this week and I'll do a write up on that. So by the early next week my interior sheet metal (not including the dash and future custom panels associated with the dash) should be off to powder coat. Then on to the exhaust system and wiring. I am getting so close to first start I can taste it! My goal was by end of March but it's looking like mid summer will be more realistic with all the custom touches (gauges, exhaust, senders, etc)
Attachment 123938 Attachment 123939
You might notice my super slick gear shift knob. My father in law made it. Can you see the reference...
Attachment 123940
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Horn Button Install --- Wait he said what!?!?
This post was updated on 4/10/2021 to reflect a brand new design using 3D printing and a desktop CNC machine
The next series of posts will cover interior updates, cooling system updates and electrical system updates. I'll post them over the next three days. The most significant of the updates I'll post today because why not get good info out there for people to use right away. After all we are all sitting around at home either building or planning anyway.
Horn Button
Well... lets talk about the horn button. Presumably we want it where we know it, center on the steering wheel. Why relearn an item that can prevent an accident. Not much of the stock setup makes it easy to install a horn button so everything here is going to need to be custom.
So here is what you will need:
1. Russ Thompson Turn Signal
2. A steering wheel with a 6x70mm (2 3/4") bolt pattern (includes, MOMO, Sparco, OMP to name a few)
3. Russ Thompson to modify the steering hub for the new bolt pattern (yes you can do this yourself but Russ can do it for you when he modifies your steering hub anyway)
4. a machinists lathe or mill or XY table for your drill press
5. Tinkercad - free online software to design in (literally a 7th grader can design in this which is about my limit.)
6. 3D Printer
7. Easel - free CNC software to design in
8. 3018 Pro Desktop CNC
9. Brass Sheet 0.025" Thickness x 6" Width x 12" Length, 22 Gauge
10. Soldering Iron
11. Some stuff from McMaster Carr described below
This is going to be lengthy so strap in. It took hours and hours to figure this out so this should save you some time. I did ask Russ if he could help me with the machining but he's slammed with orders right now so I was on my own. So I know a lot of machinists will cringe but given the state of affairs in the world right now I am not leaving the safety and comfort of my home so I do not have access to a machinists lathe nor did have access to a large CNC mill or manual mill for that matter. I just couldn't bring myself to spend $700 on a bench lathe to use it once, nor do I want to get sick seeking out a machinist locally. Maybe if the stock market was still at 29,000 but since we are heading to 15,000 better save the money. I have an XY table on my drill press and some milling bits I've used on other projects so that would just have to do. I am also terrible at the Etch-a-Sketch (you'll too find out why that important).
1. You've got Russ's turn signal system, you've got your steering wheel with a 6x70mm bolt pattern and Russ has drilled and tapped the hubs for you. You've installed the turn signal system. Things look good now lets make a mess. So the first issue that is glaringly apparent when you mock up your steering wheel is that the inside diameter of the hub is too small to accept a horn button. It won't seat. I mounted mine up and scribed a line on the hub so I could know how much material I'd needed to remove. I also recommend marking 12 o'lock on the inside of the hub for later reference.
Attachment 125629
2. The next part is hard to do but straight forward to say. Remove the material inside the scribe line. I had to do this on an XY table which is exactly like an Etch-a-Sketch. Try making a circle on an Etch-a-Sketch... NOT EASY and in my case not possible but I guess under pressure I did a pretty good job actually. I cleaned up my work with a die grinder. It looks a little rough but the horn button is going to cover it anyway and it's got added grip ;).
Attachment 125630
3. Mark and drill a 3/16" hole opposite the cancelling tabs just off center of the hub in the 9 o'clock position. Be sure to remove the drill bit from the hole and clean it several times while drilling because the aluminum clogs the channels of the drill bit. I some how forgot to take a picture of this, though if you look at step 7 you'll see the position you need to drill the hole
4. With the hub finished you can breathe a sigh of relief and remove the turn signal from the mounting adapter on the steering column. There is a screw at the 7 o'clock position that needs to be back off. Don't unscrew it all the way, just loosen it still the turn signal slides off.
Attachment 125631
5. I then designed isolators and a horn contact ring to use with the Dorman 49319 Horn Connector. Clipped the spade connector off and replaced the spring with a new Compression Spring, 1" Long, 0.148" OD, 0.112" ID from McMaster Carr. You don't need the black tube it comes with either. I then sanded the wire ferrule down on the Dorman Horn Connector so it would slide freely on the horn contact ring and inside the groove of the horn contact ring isolator. So, I bet you're like. "$8 for a wire and a ferrule are you kidding me?" I bought this connector prior to designing this system I am going to try to figure out what size wire ferrule is best in the future but since I am not mass producing them I think this minor inefficiency is okay. I then 3D printed the isolators.
Attachment 146024
Attachment 146025
Attachment 146026
6. Drill a hole 7/32 in the nylon spacer inside the ring 180 degrees from the canceling tabs on the Russ Thompson Hub and in the side of the steering column
Attachment 146573
7. CNC the horn contact ring from a brass sheet that is 0.025" Thickness x 6" Width x 12" Length, 22 Gauge. Unfortunately you can only buy shims that are spring steel or stainless, I tried stainless but unfortunately I wasn't able to solder to stainless so I had to CNC it out of brass.
https://youtu.be/zEZ3B1paHII
8. Solder a scrap piece of wire to contact ring and file down. You'll be feeding this wire through the hub so leave it long, you can trim it later. Just to be clear this is not the Dorman Horn Connector wire, that wire gets lengthened and fed through the 3D printed tubular isolator and the nylon bushing on the column.
Attachment 146028
9. Assemble - Everything should slide freely, the canceling tabs do not hit the inner isolating ring. You should be good to go. Make sure you drill a self tapping screw into the new isolator on the column so it doesn't have a tendency to slide or spin or whatever. Also the picture of the hub, the wire needs to go opposite the tabs. The picture is just to show fit.
Attachment 146030
10. The head of allen style bolt that normally secures the hub to the steering column is too big. I replaced it with this: https://www.mcmaster.com/91253A622/ for max clearance inside the hub.
11. Now I had an issue with the way my horn button was wired. On the back of my button the center position is meant to go to the horn relay and the outer position grounds to the hub. Actually the outer position can ground the hub OR the spring on the side grounds the hub. It has both because it's a generic button. Anyway I needed to switch those positions to make things fit and it was as easy at taping off the spring on the side of the horn button. But attach wire to the back of the horn button per your application.
12. Install the horn button, go lock to lock on the steering wheel verify everything is good with a multimeter and BOOM! or should I say BEEP BEEP!
Attachment 146662
I had asked a while back about getting a horn button to work here and didn't get a response so I hope this helps someone else. I know this seems complicated but if you want to get into 3D printing and desktop CNC this is a great way to do it.
https://youtu.be/2cNaUiDNZtE
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WOW that was a mouthful and since you took the time to read this far guess what?
I am giving you the designs. I believe in this community of builders and I believe those who come up with amazing ideas should profit if they want to, but this isn't my day job it's a hobby so I am sharing all my designs to be used for personal use and not commercial purposes and I am going to say explicitly there is a copyright on this design. So to you vendors, this may not be sold or reproduced for commercial purposes. Copyright 2021 - Daniel Goldman.
And because I don't want you to sue me if you botch this install, use at your own risk.
Designs may be updated and subject to improvement so check back to see if there have been revisions I'll post the date here. The latest design is 4/13/2021.
You can download, edit or manipulate the designs for your build here:
- Horn Ring Isolators: https://www.tinkercad.com/things/9hwpsN52xOq
- Horn Contact Ring: https://easel.inventables.com/projec...rqCScuhLb5PRJA
Just to add a note, in Tinkercad you can ungroup objects. That said by grouping objects in a certain order you are able to achieve the shape that you want and then combine it with another shape you want. I’m not sure that Russ has the exact measurement from the nylon bushing to the end of the column this can be adjusted in tinkercad for your specific build by ungrouping the object, taking a measurement of your column adjusting the value in tinkercad and regrouping the objects. I know this might seem overwhelming but if you watch a 10 minute tutorial in tinkercad on YouTube you’ll figure out how to do this and if you’re totally stuck PM and if I have time I’ll try to help.
7 Attachment(s)
Cool Tubes & Cooling System
So my cooling system is finally done. To accomplish what I wanted for my Small Block Ford setup I needed to go full Frankenstein. I opted not to go with Boig's 351W upper hose which has a built in filler neck. Instead I opted for the TD Motion GM manifold filler neck conversion. Additionally I complicated things with the placement of my overflow and power steering reservoir, blocking an easy path from the manifold to the radiator. I still can't see a better place for the reservoirs in hindsight so hopefully I made the right decision and to accomplish the clean look I didn't have any other choice. But I am very pleased how things ended up coming together.
The most straight forward of the two tubes was the lower tube. It's Boig's standard 351W lower tube for the Gen 3 coupe. I opted to match the satin black frame so that it was incognito. No reason to draw attention to it.
Attachment 125713 Attachment 125714 Attachment 125715
For the upper tube I went with a variation of corrugated tube and cool tube. Starting from the radiator I used Boig's coyote tube. The tube is a straight shot and stops just on the other side of the radiator tunnel allowing me to pick up from there with corrugated tubing. I made a filler piece between the radiator tunnel and engine bay to give a nice clean look. I polished the upper cool tube (I've become proficient at polishing aluminum and stainless) the best part is that if you screw up you just start over. I used a similar process as the AC fittings but took it a step further as I wasn't able to get the desired result with just 220 sand paper and red Scotchbrite, plus polish. I started with sanding, 120, 150, 220, 320, 400, 600, 1000, 1500, 2000 all by hand. Then moved to the polishes all Mother's brand, first the Powermetal Polish, then the Mag & Aluminum Polish and then the Billet Polish. I applied them with a microfiber towel and just rubbed and rubbed and rubbed, all by hand. I tried doing it on a polishing wheel but by the time I'd get everything adjusted and installed I had scratched it and had to start over so I did the whole thing on the car after installation. If you scratch it, you have to start at the beginning, no shortcuts (trust me I tried).
Attachment 125716
Past the radiator tunnel I came off the cool tube with a rubber 90º fitting which I then attached to the corrugated hose provided in the kit.
Attachment 125717
I ran the hose around the 2 reservoir tanks and up to the TD Motion filler neck. You can see I used a combination of heat shrink clamps and traditional hose clamps depending on where things were and if they were visible. I bought a chrome cover for the corrugated rubber fitting that attaches to the filler neck but opted not to use it because all my other fittings were black and the heat shrink clamps would match more closely.
Attachment 125718 Attachment 125719
On the Boig cool tubes I used 1 3/4 to 2" heat shrink clamps and on the corrugated fittings and on the lower water pump fitting I used 2 - 2 1/4 fittings.
3 Attachment(s)
Custom Battery Tray and Mounting Location
This is the shortest of the 3 updates and probably the most disappointing despite the amount of time it took. I fabricated a battery tray. I bought a generic Summit Battery Tray and cut it apart and welded it back together, I figured it was easier than fabricating one from scratch. I wanted a rear mounted battery. I wanted it in a safe location so I mounted it off center over the differential. The fit is very tight. I am using the Braille 21lb Battery I found Tire Rack to have the best price and they include a hold down. I wanted an AGM battery and this fit the bill. AGMs can be mounted on their side so that saved a lot of space. I wrapped a nylon tie down around it so it can be removed relatively easily. Access is very limited and the tolerances came down to a 1/32" or just a millimeter. Space is at a premium back there. I did this in an effort to keep my engine compartment clean. I am going to have an access hatch in the trunk. I am not carpeting the interior and instead will have a leather diamond stitched trunk mat that can cover any access panels (there are already 2 for the fuel sender and the fuel pump/pickup). From here I can begin the trunk sheet metal and make any necessary cuts now that I have everything in place. I am working front to back if you can tell. I don't plan on making any extra storage compartments in fact I am vacillating about sticking a spare tire back there. Not because I need it but because I like the look. I don't see a car that requires earplugs to have any thing functional about it except going fast. Probably not going to be doing any road trips in it, probably just local shows and vintage track days. Anyway finishing the trunk sheet metal would mean all that's left is the custom dash and by then hopefully the stay at home orders will be lifted and I can go get some sheetmetal and get the interior panels off to the powder coater. I have turned my attention to electrical but I don't see any major updates on that for a while.
Attachment 125775 Attachment 125776 Attachment 125777
7 Attachment(s)
Starting to Layout Electrical
I have been dabbling here and there. But my main focus has been electrical and I'll do a full write up or several on it in the future. I ordered a MSD 6a Ignition Controller and a MSD Blaster SS coil but Ontrac threw them over my fence in the pouring rain and so as you can imagine they went straight back to Summit for an exchange. But in that box was the 2ga wire I ordered for the connection between the starter and the battery and the jumper point which I located in the trunk (I'll post a picture of them later). So that's wired and so is my fuel pump. My main point of posting now was because I located my ignition switch, light controls, AC/Heater control, and fan speed knob (more to go but this is a good start)
Attachment 126280
I love the location, it puts everything at my finger tips but in this configuration the knobs just don't look good. I asked my father-in-law to turn me some knobs and with nothing to do the next day he sent me these pictures. I just love them!
Attachment 126281 Attachment 126282 Attachment 126283
I am doing the same powder coated matte silver for all the interior panels as I did under the hood. I mean whats better than metal, leather, wood and 475hp!
For those of you who don't have a skilled woodworker in the family but like this look, you can go on Etsy and look up wood guitar knobs (huge selection and they look awesome). Anyway the headlight switch I will epoxy the knob onto the triangular shaft, the rotary switch for the fan speed is a 1/4" half moon and I purchased inserts here.
Attachment 126286
You might ask why I went with a keyed ignition over a push button start and that's because I loved the keys with the FFR logo (it's going to be the only FFR branded thing on the car) and I love the idea of turning a key. Makes it feel vintage LOL. I will have to say filing the hole for the ignition was a massive pain in the rear end.
But more along the lines of placement of electrical components is where to locate the hazards or high beams not sure which one yet but one of those will be activated using the momentary switch on the Russ Thompson turn signal stalk. I am going to use a Standard Motor Products LR35 12V Flip-Flop Latching Relay. When the momentary switch is pressed it will turn on the flashers and when it is pressed again it will turn them off. It can be used to control anything really as it's a dry contact relay.
Attachment 126290 Attachment 140309