Twin Plate Clutch Weird Grinding

[gtovr4]

Hi Guys,

I have an R32 GTR with twin plate clutch (ogura.)

Now it has been fine but recently I noticed that once the car has warmed up a bit (the problem does not occur at all when cold),

I hear a grinding sound as I release the clutch. It is like something isn't disengaging properly or there is some sort of resistance, it sounds like metal friction, a low grinding sound. This is not the normal twin plate rattle which I hear when i simply press the clutch pedal.

Oh also it only really happens in 1st and 2nd, after it happens, it can be harder than usual to take the car out of 1st gear, sometimes 1st gear is stuck for a second or 2.

Please help.

Thanks.

[T04GTR]

might have to pull it out and see. it may have a broken diaphram spring... or nothing at all. but the fact its not disengaging when hot is an issue..

your clutch fluid is ok? if you can see if there is any freeplay on the clutch fork. should be somewhere in the front half of the hole in the gearbox and not be hard up against slave cylinder.

[S13_DriftR]

might have to pull it out and see. it may have a broken diaphram spring... or nothing at all. but the fact its not disengaging when hot is an issue..

your clutch fluid is ok? if you can see if there is any freeplay on the clutch fork. should be somewhere in the front half of the hole in the gearbox and not be hard up against slave cylinder.

+1

So is it still dis-engaging OK??

In some cases, not many though it could be a spring has come away from one of the Clutch Discs but I highly doubt it because otherwise it wouldn't just be 1st or 2nd...

May need to pull it out & have a look incase you're actually doing more damage

[gtovr4]

+1

So is it still dis-engaging OK??

In some cases, not many though it could be a spring has come away from one of the Clutch Discs but I highly doubt it because otherwise it wouldn't just be 1st or 2nd...

May need to pull it out & have a look incase you're actually doing more damage

Yeah it still disengages fine, it just seems hesitant from a standing start. It is a grind/rattle. Also I've noticed, the revs tend to be slightly higher than usual when this happens, it usually idles on around 1000, but it hovers at 1100-1200 when the problem occurs.

If the car is moving and I put it in 1st/2nd, it is absolutely fine.

However, once hot, standing starts are a nightmare (and its not coz im noob and can't drive a twin plate, it was fine until recently.)

[r33cruiser]

i had the EXACT same problem with my exedy twinny about a month ago. took it back to the mechanic as it was under warrenty, and found that the spigot/release bearing was gone. moisture had gotten into it.

it almost sounded like a crunching gearbox.

is it a new clutch?

Edited February 2, 2009 by r33cruiser

[gtovr4]

i had the EXACT same problem with my exedy twinny about a month ago. took it back to the mechanic as it was under warrenty, and found that the spigot/release bearing was gone. moisture had gotten into it.

it almost sounded like a crunching gearbox.

is it a new clutch?

It has only done around 1500kms, going to have to get it looked at I guess.

Should I drive the car or should I play it safe?