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hi guys,
i'm troubleshooting the TII tranny in my FB and need to see how the throw out bearing is placed inside the S4 TII tranny. does someone have a good picture of how it looks in place?
my issue is that i can't change gears while engine is running. pilot bearing is new (old one that i replace was fine). TII slave is new and has good pressure. fork is moving about 1/2" when clutch is pressed in. this is with an ACT 6 sprung kit. disc is facing the right way. the only thing i can think of is that the throw out bearing is possibly installed incorrectly...it fell out a long time ago when i first got the tranny and i put it in how i thought it should be maybe it's installed incorrectly...thus me asking for a picture.
found this pic on racing beat's website. i doubt i could have installed the throw out bearing incorrectly but guess i'll have to drop the tranny to verify. will also look at the pivot and make sure that is intact. any other suggestions for things i should check?
If you can Change gears when the car is OFF,But you CAN'T change gears when the car is operating then you have Screwed up the PILOT BEARING.
What happens is it makes the input shaft Mates to the Engine and they are basically melded into one unit instead of 2 separate shafts.
Put it in first, push pedal to floor and try and start the car. If it leaps forward, clutch not disengaging for some reason, if it starts and no surge/movement, I'd look at the pilot bearing.
I doubt it's the pilot bearing. When the tranny is in first and I manually rotate the motor, the rear wheels turn. But when I put it in neutral and turn the motor, rear wheels do not move. This eliminates the pilot bearing in my mind. I believe it's either an issue with the throwout bearing, the fork, or the pivot. Will need to drop the tranny and take a look.
I doubt it's the pilot bearing. When the tranny is in first and I manually rotate the motor, the rear wheels turn. But when I put it in neutral and turn the motor, rear wheels do not move. This eliminates the pilot bearing in my mind. I believe it's either an issue with the throwout bearing, the fork, or the pivot. Will need to drop the tranny and take a look.
When you put trans in neutral, even if the pilot bearing were to be bad, the rear wheels wouldn't turn as the trans gears are in the neutral position and no connection to the driveshaft.
When you put trans in neutral, even if the pilot bearing were to be bad, the rear wheels wouldn't turn as the trans gears are in the neutral position and no connection to the driveshaft.
makes sense...so at least my tranny is good from a neutral position. i believe i found out what the problem was. i dropped the tranny and didn't notice anything out of the ordinary but when i went to replace the throwout bearing, i noticed the fork was not attached to the pivot via the spring. when i put the fork back in, i made sure the spring was attached appropriately. because of this, the fork pivoting point changed. i haven't had the chance to fully install things back but feel pretty confident that was the issue.
So I still have an issue. I can see the throwout bearing move but doesn't seem like it moves enough to disengage the clutch disc. I have .5" of movement at the slave/fork. Now am thinking maybe a bent fork? When I checked it out when swapping the throwout bearing, it wasn't cracked or anything. Is a bent/broken fork typical like in the FD?
Other than trying to replace the fork, my only other troubleshooting idea at the moment (before buying a new clutch kit) is to see if using shims between the pressure plate and flywheel will help at least disengage the disc.
actually, i don't think it's a bent fork now...i had adjusted the pedal rod to preload the throwout bearing, thus pushing the fingers further in than normal. going to drop the tranny again and verify the new pilot bearing is still good but i'm out of ideas so if you guys have any recommendations, let me hear them.
Hmmm, are you sure the slave cylinder matches the transmission? NA and TII slaves are different.
Your pilot bearing needs to be seriously damaged before it actually locks the engine and transmission together, you would have noticed it removing the transmission before.
i just looked at the pilot bearing again and it's fine. all needles in place and spinning freely. i've gone as far as removing the aluminum flywheel this time so all parts are sitting in the garage.
quick update and to help others who may read this:
so finally resolved the problem! it was not the pilot bearing, pivot, throwout bearing, fork, or slave. i had my daughter help me push the clutch in while i checked underneath. one part of the ACT pressure plate would not disengage from the disc (there are three springs that push the pressure plate onto the disc and one of them i had to use a screwdriver to pry it loose). ordered a brand new Exedy Stage 1 kit (with HD pressure plate) and am now good to move forward. man, what a pain. i had to remove the tranny i believe 4 times for this issue.
08-07-17, 08:00 PM
