truck hood

[Furrman]

does anyone know if the inner and outer halves of the hood should be sealed together? I don't mean around the edges, but more toward the center. mine is really loose, and the air going over it makes it click klack like castinets. could I put some foam or something in there to stiffen it up a bit? any thoughts would be appreciated.

[bnelson]

I had the same issue along with serious low spot across most of the hood. I drilled hols and filled with foam. Be carfull though. You need to clamp something across the hood so it dose not form a bubble. And be sure to leave it overnight. Some of that stuff keeps expanding for quite some time. Below is link to some photos on my build page.


https://thefactoryfiveforum.com/showthread.php?31894-Bruces-Chopped-35&p=381968&viewfull=1#post381968

[Furrman]

I had the same issue along with serious low spot across most of the hood. I drilled hols and filled with foam. Be carfull though. You need to clamp something across the hood so it dose not form a bubble. And be sure to leave it overnight. Some of that stuff keeps expanding for quite some time. Below is link to some photos on my build page.


https://thefactoryfiveforum.com/showthread.php?31894-Bruces-Chopped-35&p=381968&viewfull=1#post381968

Very Intresting...I wonder if I could flip it over no the floor drill it and foam it from the inside then sand bag it? Thanks for tip. you got my gears goin.

[bnelson]

Very Intresting...I wonder if I could flip it over no the floor drill it and foam it from the inside then sand bag it? Thanks for tip. you got my gears goin.

Don't see why that wouldn't work. hundred ways to skin a cat :) I did mine on truck just so I could keep an eye on it and make sure it stayed in alignment with shroud and firewall and dead flat across them. if you look at the pictures I placed screws through the hood so I could adjust the low sport out of it by pushing against the bottom skin. Doing it as you are thinking may have eliminated the need for that and done away with having to fix the holes on top of hood. Keep us posted as to what you come up with and how it worked out.
Bruce

[Furrman]

Hood Update: I put the hood top side down on the floor. Drilled holes in the void area's, filled with foam, and sand bagged the center section. I let it dry overnight and bingo, the two halves are stuck together, BUT, it did not get rid of the dip in the center of the hood. With a straight edge across the top, there is a 1/2" bend in it, front to rear. So, I'm thinking of going a different direction. I am going to call McMillan Rod & Custom. What I want to do is get a piece of 1/2 round stainless trim in 3 sections that I can run down the center of the hood, cowl, and nose. With a 4th piece on the inside bolted to the top piece with hidden stud's. What do you think? at the moment the wood in my bed kit and the hood match. maybe I'll paint it yellow, and call it the BANNANA ROD !!!

[bnelson]

LOL. At least you have a sense of humor about it :) I was pretty pissed about having to do all the work I did just to get the hood straight. Should be straight when we get it. Seems like most are and we were just the lucky ones :(

[rponfick]

Looked at my hood yesterday and the depression in the middle. Considering the differing results with foam, and my worry of making a bubble verses a depression, has anyone considered filling the depression.
I realize that would be too much thickness for just bondo, but would adding a few layers of fiberglass, then a skim of bondo work? Maybe more work? Or not?
Ralph

[Furrman]

Hood Update: I put the hood top side down on the floor. Drilled holes in the void area's, filled with foam, and sand bagged the center section. I let it dry overnight and bingo, the two halves are stuck together, BUT, it did not get rid of the dip in the center of the hood. With a straight edge across the top, there is a 1/2" bend in it, front to rear. So, I'm thinking of going a different direction. I am going to call McMillan Rod & Custom. What I want to do is get a piece of 1/2 round stainless trim in 3 sections that I can run down the center of the hood, cowl, and nose. With a 4th piece on the inside bolted to the top piece with hidden stud's. What do you think? at the moment the wood in my bed kit and the hood match. maybe I'll paint it yellow, and call it the BANNANA ROD !!!

Update #2 After some thought, I decided to go for broke. I got 2 towel's, and I rolled them up. I set one at the leading edge of hood the other at the trailing edge. With the hood upside down I squirted some more foam in the center area, then I put two 40lb sand bags ( wood pellets) on the center of the hood. I put a small electric space heater near to warm the hood. I waited overnight, and.... IT WORKED!!! I am so stoked. The hood is perfect. I put it back on the truck this morning. I'll wait and see if it sags again.

[rponfick]

Would you guys be so kind as to list the kind of foam you are using: minimally expanding, expanding, door and window, etc. Brand would be helpful also.
I have read that some of the foams can exert a lot of pressure on the space filled, and cause unintended consequences if not designed for that purpose.

Thanks, Ralph

[Furrman]

Would you guys be so kind as to list the kind of foam you are using: minimally expanding, expanding, door and window, etc. Brand would be helpful also.
I have read that some of the foams can exert a lot of pressure on the space filled, and cause unintended consequences if not designed for that purpose.

Thanks, Ralph

I used, "Great Stuff" which say's on the label not to use in void's. So what I did, was to keep picking at the foam as it expanded out of the hole's. I also gently fed air from my compressor into the holes. Plus, I kept it war with a space heater. It seems to have worked, time will tell.

[bnelson]

I used Great Stuff as well. I just clamped level and boards across the top to keep it from creating an unwanted (bubble) in the middle of the hood.

[rponfick]

I think Great Stuff makes a few different types of foam. I have a can that has "Gaps & Cracks" on it's label. I remember reading about some guys filling their roadster doors with the wrong kind and too much pressure was exerted. Just wanted to see what you guys used. Probably already threw away the can.
Ralph

[Furrman]

Gaps & Cracks is what it said on the can. I've used this for many years as an electrician, sealing large conduit. It can deform your part. Make sure your part is well supported / braced, and have a hole for excess foam to escape. this stuff doesn't dry well inside a void though. I had to feed air in SLOW to get it to dry. you may want to look for a 2 part foam, catalyst mix, that doesn't require air to dry.

[sperger72]

Ben,

This is what I used as well. Followed your lead.

Zach

[RuffShod]

Has anybody installed a hood with the deluxe grill?

[KenWilkinson]

There is no hood for the deluxe grill on the truck