Hydraulic Clutch Build Advice

[JGPierce]

I'm installing an hydraulic clutch on my tranny and need some advice on the positioning of the throwout bearing (TOB) and the fulcrum point of the clutch fork. At this point my fulcrum point is too far forward when I install the tranny. This puts the TOB right against the pressure plate fingers and the clutch fork is angled very far forward and hits the pressure plate. What I'm trying to figure out is how much height of the fulcrum point I need to remove to put things into optimal placement. The questions that would help me the most are:

1. How far should the TOB be from the pressure plate release fingers/tines when not engaged? Just far enough so it doesn't hit the fingers and spin? Farther?

2. The clutch fork pivot point should probably be forward of the non-engaged position of the TOB to give more force and front to back movement. Is there a point where the angle of the clutch fork is too much?

Below are some pictures of the set up.

Thanks for the help.

John


http://farm6.static.flickr.com/5098/5476353980_0261e7070c.jpg

http://farm6.static.flickr.com/5173/5476353768_198c41bcf6.jpg

[Hankl]

John,

Short answer, Give Mike Forte a call, he's always available, or Steve there can help also. They have great customer service, and do a great job of supporting their customers.

Hank

[mcwho]

I am interested in this setup as I plan on Hydralic clutch also. Where did the slave cyl come from? What are you gonaa use for a master cyl?

[J Persons]

I've set up several including my own, and like to have the pivot adjusted so the arm is 90 deg to the input shaft. On a stock type diaphragm pressure plate, adjust the TOB so that it lightly touches the fingers. This should get you into the ball park. The tighter the TOB is against the PP(within reason), the lower to the floor the clutch will engage.
Disclaimer: Fortes parts may use some other procedure, but my procedure works well for stock parts.

[BigLeo69]

a 1984 ford f-150 set-up works well.
i have a 7/8" cnc push slave and the 13/16" m/c is a wilwood we hope is big enough

[mcwho]

BigLeo, I see NAPA and summit has the master/slave cyl for a 1984 f-150, all i would need to find is a f-150 slave braket to make it work.