knocking when realeasing clutch

TRD_ZERO · Post by **TRD_ZERO** » Fri Feb 22, 2008 4:03 pm

When i release the clutch slightly fast i get this knocking noise like im dumpming the clutch. Anyone know what this could be?

allsecretlove777 · Post by **allsecretlove777** » Fri Feb 22, 2008 4:15 pm

Is it a hydrolyic clutch or or cable clutch? Cause mine is the cable clutch and it makes a noise from the spring (i think) which pulls the pedal back after releasing the cutch. I dunno,, is it from inside the cabin or from the gearbox?

al_feinted · Post by **al_feinted** » Fri Feb 22, 2008 4:55 pm

possibly broken engine mount?

TRD_ZERO · Post by **TRD_ZERO** » Fri Feb 22, 2008 6:01 pm

OK the front gearbox mount is torn and the rear one doesnt have the bolt through it so its just sitting there not bolted up. Would the mount not being connected make this noise? I just couldnt get the main bolt back in it was such a pain. Its a hydraulic clutch. Would there be any other things that would cause this noise?

Zak · Post by **Zak** » Fri Feb 22, 2008 6:18 pm

Both of them would make the sound, fix them first then look for other problems.

flygt4 · Post by **flygt4** » Fri Feb 22, 2008 6:51 pm

sounds like your problem. needs rectifying before you try fix anything else.

when you press the clutch you transfer weight around on the engine and gearbox.you usually end up rocking it between the mounts and the knocking you hear is metal hitting metal.
one time i snapped an engine mount and what alerted me was a knock when i clutched in to change gear but only at certain speeds.

Dirtbag · Post by **Dirtbag** » Fri Feb 22, 2008 8:50 pm

I've had the same problem, got all the mounts replaced and it still happens, are there any other causes for it? get an unusual clunking sound, and i feel the engine shift in the mounts.

Zak · Post by **Zak** » Fri Feb 22, 2008 9:04 pm

Genuine mounts or aftermarket?

Also what car?

Dirtbag · Post by **Dirtbag** » Fri Feb 22, 2008 9:17 pm

TGP from revvy
ae101 gt-apex, superstrut, completely stock

Zak · Post by **Zak** » Sat Feb 23, 2008 9:17 am

Ok, I'd be looking for play in suspension, drive shafts, wheel bearings and stuff, if thats ok, then maybe the damper in your clutch plate is worn and has play.

All though all most every manual corolla I've driven, and thats alot now, has made bit of a noise from the mounts even with fairly new ones. I think it's just a poor design.

78ke30 · Post by **78ke30** » Tue Feb 26, 2008 3:39 pm

I have the same problem in a ae111 bzr, but when you release the clutch slow its fine. it also needs the clutch replaced (slipping), have the parts (tgp) will let you guys know once it has been replaced if this solves this.

Bumpy · Post by **Bumpy** » Tue Mar 04, 2008 6:36 pm

Could it be the shaft, that the release bearing slides along, has worn un-evenly?

haydo · Post by **haydo** » Wed Mar 12, 2008 9:41 am

I have this same problem too. Where's the best place to start looking for broken mounts?

Cheers

Post by **Mr Revhead** » Wed Mar 12, 2008 11:32 am

you could try looking at the mounts.....

TRD_ZERO · Post by **TRD_ZERO** » Wed Mar 12, 2008 7:44 pm

Thought id give a quick update. I put the main bolt back into the rear mount and it solved the problem car feels alot better too.

Bumpy · Post by **Bumpy** » Sat Mar 15, 2008 5:28 pm

TRD_ZERO wrote:Thought id give a quick update. I put the main bolt back into the rear mount and it solved the problem car feels alot better too.

hehe

78ke30 · Post by **78ke30** » Mon Mar 17, 2008 7:50 am

78ke30 wrote:I have the same problem in a ae111 bzr, but when you release the clutch slow its fine. it also needs the clutch replaced (slipping), have the parts (tgp) will let you guys know once it has been replaced if this solves this.

Have had the clutch replaced , but car still has problem. Will look into engine mount.

Mr Revhead wrote:you could try looking at the mounts.....

How much for a set of engine mounts from Toyota (TGP & TRD)