[bkerns925]

Guys I need a little help to double check my work to make sure I am on the right track. I installed a T56 conversion kit into my 69 camaro and the TO bearing failed after about 60 miles. I think primarily due to my trans being shipped without a front bearing retainer and I didn't know any better (shame on me and the vendor). luckily it didn't damage anything other than the bearing. So I decided to buy a hydraulic TO bearing from AP. I have it installed, the air gap clearances are within tolerances (.195) and all the air is bled out of the system. The pedal has a hard feel to it towards the bottom of the stroke. Here is a video for reference - I apologize up front for the crappy quality

http://www.youtube.com/watch?v=CzjeM...ature=youtu.be

The tech specs say I need a 4 to 6:1 pedal ratio for the master cylinder stroke. I am using a factory pedal assembly which is 12 inches from the pedal pivot point to the center of the pedal. The master cylinder heim joint is mounted to the factory manual linkage hole 3.5 inches from the pivot point (3.42:1 ratio). According to the tech video on the hurst website the heim joint should be 2" down from the pivot point which would mean that I need to remove the pedal and redrill it to get a proper 6:1 pedal ratio. Talking to the AP folks today that might clear up the hard pedal feel but before I do I'd like to verify that the hydraulic TO bearing throw/pressure plate engagement is sufficient to disengage the clutch disk.

As it sits right now the clutch is dragging and I cannot get it into gear with the car running and it engages right off the floor.

Any help you guys can provide would be greatly appreciated. I am ready for this nightmare to be over................

[SIDEWAYS]

Brian, assuming your running the Magnum based on your sig. Which TOB are you using - is it like the OE f-body/Vette style?

[bkerns925]

Originally Posted by SIDEWAYS

Brian, assuming your running the Magnum based on your sig. Which TOB are you using - is it like the OE f-body/Vette style?

I am running a Hydramax kit from American Powertrain with the T56 Magnum.

[bkerns925]

OK quick update.... I got home tonight and took the clutch pedal out. Re-drilled the hole for the clutch master cylinder rod about 1.5" closer to the pedal pivot point to give me a 6:1 pedal ratio. Got it all back together and now I have a nice smooth pedal. Next I need to go back and re-bleed it. The pedal is kind of spongy. More updates to follow in the next few days as I get time to work on it.........

[gixxer47]

HI Bkerns
Trying to put the hydramax system in. Mounted the master cylinder centered in the original hole and hooked the heim joint into the original hole in the clutch pedal.I have adjusted the rod as far out as they will go and my pedal is a 1/2" from coming up to the stop and when i push it in to the floor i am about 2-2 1/2" from the floor.Is this the problem you where having??
Thanks

[bkerns925]

I wasn't getting enough stroke on the pedal so I took it out and re-drilled it to get the 6:1 pedal ratio. The pedal was 12 long so I measured 2 inches down from the pivot point and drilled a new hole. I did have to extend the threaded rod as there was only a few threads in on each side. Now my pedal travel is as it was before the conversion, the clutch engages just off the floor and the master cylinder is not over stroked. Feels like butter! I did have to reclock the slave cylinder so the bleeder lines exited at the 12 oclock position because I couldnt get all the air out. Hope this helps. if not let me know.

[gixxer47]

Sorry,I should have told you i have the LS set up(HRB).With the rods extended as far as i dare to my clutch pedal won't come back to the top (1/2 shy) and won't go to the floor as i am out of stroke(pedal is still 2' off the floor).Will re-drilling fix this??I can not move the master up any more as i am up tight to the vacum booster now.
Thanks

[bkerns925]

if you are using the factory hole in the pedal then moving the hiem joint attachment hole up further on the pedal will likely reduce the pedal travel even more. do you have any pics of the setup as it is now?

[gixxer47]

Talked to American Powertrain yesterday and they told me my clutch pedal will sit lower when using this set up(HRB).So i adjusted the stops and tried to keep my pedal as high as i could. I don't know what else to do.