need help with a throw-out bearing sound.

as the steeda kit is a GREAT piece and i highly reccommend u get it anyway....HOWEVER it will NOT fix ur issue:nono: the case u are describing *which i have had about 3 times i tried changing clutch throwout bearing tried the steeda clutch cable kit the whole 9 yards* it is a CLASSIC bad pilot bearing issue... and i know u put a new one in, but that doesnt mean that there was enough grease in it or bad right out of the box. also, if u beat on the car with a brand new pilot bearing and didnt give it a chance to break in, that would ALSO cause it to fail and start squeaking... SO there is a driveline guru on this site will tell you the same thing, TRUST ME he is the one that told me...i fixed my issue with a new pilot bearing and being nice to it for about 1k miles til it had a chance to grease right up and work right...
As for Brandkoe's answer, im sorry, but that is WRONG, the throw out bearing is NOT supposed to be pressed against the pressure plate at all times!:nono:
The throw out bearing should be about 1/16" OFF the pressure plate so it DOES NOT spin ALL the time causing it to burn up TWICE as fast and it would also keep it from squeaking cuz clearly, its not spinning right??:scratchchin

i hate to tell u that ya gotta tear the car apart again and u shoulda joined this forum sooner... we prolly coulda helped u out the first round :so

i know it dont HELP but at least u have accurate info and if u want me to go into greater detail as to how it all works i can, just ask:bigthumbsup

1994MustangGT50 said:

.... SO there is a driveline guru on this site will tell you the same thing, TRUST ME he is the one that told me...

Click to expand...

Thanks 1994MustangGT50..... and yes you are 100% correct on your assesment. :bigthumbsup

If you get a bearing noise that goes away when depressing the clutch pedal only, it is classic bad pilot bearing.
With the clutch adjusted properly, the throw out is not touching the fingers on the pressure plate UNTIL you depress the clutch pedal. That means with the pedal all the way out the rest position, the throw out bearing is just sitting there, not spinning, not doing anything, just sitting still. If it's not moving, how can it be sqealing? :scratchchin

General rule of thumb is you need between 1/8" and 1/4" gap between the face of the throw out bearing and the fingers of the pressure plate when the pedal is all the way put at the rest position. IT SHOULD NOT RIDE ON THE FINGERS 100% OF THE TIME. If it does, you will experience premature bearing failure. The mechanical bearing is not designed to spin 100% of the time. Trust me (and 1994MustangGT50 :hihi on this one. Not only my experience but I have first hand knowledge on this as well. My personal cars' stock cbale setup is almost worn out. I have hardly any adjustment left. About 4 months ago we put in one of our Proto-Type T45RS's into my car. I replaced the throw out bearing at that time. When I went to set the adjustment, I couldn't as the cable was worn out. I had to leave it with the throowout bearing riding the fingers all the time. Fast forward to last Friday.... we pulled my proto-type T45RS to install yet another proto-type version of the T45 I like to call the T45RS "S". (read more about it in my thread I started earlier this week on here...) anyway, the new throwout bearing was squealing like a pig ALL THE TIME BECAUSE IT WAS CONSTANTLY TURNING WHEN THE ENGINE WAS RUNNING. It only took a month or 2 before the squealing started as they are not designed to turn all the time. When we installed the T45RS "S", I changed the bearing again. Luckily I work here and have access to lifts and everything and we have changing out my tranny down to a science. We can do the job in less than 3 hours start to finish. I still haven't replaced my cable setup (lack of $$$) so I will be pulling this one out again in a few months. Lucky again, we have an endless supply of T/O bearings for me to use. :hihi:


The pilot bearing on the other hand is moving all the time that the engine is running. When you depress the clutch, the inner half of the bearing slows down as does the input shaft, when this happens, a noisy bearing will usually stop making noise.:bigthumbsup

I have seen bad ones out of the box as well. Also, if is was not greased when installed, or installed incorrectly it would squeal almost instantly.





Richard
Tech Support
Tremec TKO, T45 & T56 Transmission Systems