Transmission/Clutch squeal [Archive] - Team Camaro Tech

: Transmission/Clutch squeal


mstehle
Oct 12th, 06, 01:18 AM
Guys:

I am getting a minor squeal when I let the clutch out in neutral. As soon as the clutch starts to engage the squeal starts. Seems to increase with the rpm's. One knowledgeable guy said it was transmission, possibly a bearing. Does this sound right? Would fairly suck if that's the case. BTW L78, M22. Pretty new clutch in good shape.

Thanks

Mark

parkbrau
Oct 12th, 06, 03:29 AM
Did you put in a new throw out bearing when you changed the clutch. Sorry, but I had to ask. That could be the problem.

Oldrocker
Oct 12th, 06, 07:09 AM
Diagnosing a noise is a hard thing to do without actually hearing it, but a few things worth looking into... Does it go away if you lightly apply the clutch (just starting to apply pressure, not disengaging the clutch)? Could it be part of the clutch linkage vibrating ( like the clutch rod at the clutch fork)? My camaro has a rattle caused by the above and all that was needed was an adjustment and a light amount of grease at the pivot point. Also check and make sure that all of your linkage is in good shape and none of it is worn or loose etc. Usually if it is a squeal, I would count out a bearing in the transmission. Most the time a bearing will make a grumbling sound where a brass bushing that was dry and worn would cause a squeal. There are exceptions but it depends on the transmission and clutch that you are using. One other thing I've seen that can cause a problem is the front bearing retainer, the part where the throw out bearing rides, can wear from excessive use, miss alignment etc... and the whole bearing may be spinning on it and could cause a squeal. I would back off the clutch linkage and try to carefully pull the TO bearing away from the pressure plate, the key word here is carefully, don't want to loose a hand, and start it in neutral and see if you still have the noise. If not I would look into the TO bearing and release components. Another thing I would recommend is to get a mechanics stethoscope and try to pinpoint the noise with it. Let us know what you find. Tom

JimM
Oct 12th, 06, 07:33 AM
Throwout bearing.

The good ones have a "BCA ####" stamped on them. Every one I've ever tried that didn't say "BCA----" was crap.

I've also run into situations where an auto parts store brought out 4 bearings with the same part number, and one of the 4 was marked with the "BCA---"

mstehle
Oct 13th, 06, 05:21 AM
Guys:

Thanks for the help. It is supposed to snow here this weekend but I will try to get at it if I can and will let you know what I find. I am a total newbie so I am a little nervous about attacking something like this but ya gotta learn sometime I guess.

Mark

zdld17
Oct 13th, 06, 08:56 PM
Bca 1705 Cc ,