Hi, my old clutch was slipping last summer, so I replaced it with a Spec Clutch rated to 375 foot pounds of torque. While changing the clutch, I noticed that there was a lot of oil on the old clutch, probably why it was slipping, so I change all the seals around, trans seals, transfercase seals, main bearing seals, input and output seals, etc.

Now, I'm probably running in the same problem, since my clutch is pretty new, not even 2000 km on it! I think I've found the problem, but I'm not certain. Could this be possible that a small leak at the cam angle sensor, will actually drip into the transmission case, and make my clutch slip?

Cause the case is not sealed tight to the engine. If that's the problem, I will replace the cam O-Ring, but now, how do I remove that oil on the clutch, without removing the trans? This is too much of a pain to disassemble the trans to only remove that oil film...

I think, (not sure mind you) that you could removed inspection plate and spray in an arasol bassed degreaser of some kind. Make sure to let evaporte long long time! before you give the car any love.

I don't see how this could harm anything? But I think once clutches slip they always slip, or maybe thats just from glazing.

If you have too much freeplay, that can cause slipping as well. Check that out.

^^^
Too much freeplay would actually have the opposite effect (no disengagement).

Was the flywheel machined to spec when you replaced the clutch? This is a must.

I think it would have to be a pretty major leak from up top to make it all the way on to the clutch.

Yes, the flywheel was machined back to specs, and my clutch was working fine for a few months. If I can get the trans separated just a little bit, I might be able to spray some stuff to clean it. Would Brake cleaner do the Job?

Not only from the cam the oil was leaking at that time, I also had a small breather filter, but now, I have relocated the breather. I can see some oil on the hood insulation.

My bet is that you need to adjust the Clutch height and freeplay.

It "might" help. Try that first before to tear anything apart.

Other posibility would be thet the Slave or Master Cylinder is "kaput".

Crawl under the car and have someone to push in the Clutch for you while you look at the Slave Cylinder.

Hope this helps.

Ghislain.

If the disk is wet with oil, you ca nnot clean it, it will have to be replaced.

In my old car the tranny input seal was shot and once I made a sharp corner the oil leaked into the clutch and then it started slipping.

It did it for a while until it burnt off.

I am guessing the oil would burn off to a certain degree. Chris is right that it will never be back to normal but if the **** heats up good it some oil could burn.


I have a rough time relating a xcase leak to clutch housing.


By in any case it was the input shaft.

And in your case, it is likely that the input shaft bearing is shot, did you check it?
even if you changed the seal, if the bearing is shot it is onlyt matter of time(months,weeks) before the new seal would start to leak.


Excess of oil in that area, in my opinion, could be only from tranny input seal or the rear engine seal. Valve cover is unlikely to leak down there to that point. unless you tranny is not tight.

Thanks for all the info guys. That's right, I send the trans to a mechanics, and he's really good in those transmission, so he replaced the seals, but never told me about a bearing that was shot, so I just assume that the rest was good.

So, to check that bearing, I will have to take out the transmission again. I just can't believe that I will have to take that out for the third time, it's just a pain.

I also realised that I had my car at CT last week-end, for spraying Corrosion Free under the car, could that gel got in the transmission? Because it's slipping since then, or it's just a coincidence...

I suppose it could get in there.

do you not have the flywheel inspection plate in there?

Another possible cause is some clutch abuse from one of the mechanics that either can't drive for $hit or thought he could and that it would be fun to take yours for a drive.

ya if you ever see what goes on at a normal CT it is very scary...never take any car you own there,

what was the "spec" that they used when they machined the flywheel?? also check if you slave is siezing open...just a thought usually when the slave goes it just bypass's and you have no clutch pedal at all...weird.

Just get under your car and see if theres the under coating stuff on your trannie, espcially around the inspection cover area, but they shouldent be spraying in that area anyways, if they did take it back to them and tell them they sprayed it on there and your clutch is slipping.

It's going to be nearly impossible for them to get undercoating onto the clutch disc surface. Think about it. The surface is being clamped between the flywheel and pressure plate. The undercoating woud have to make a few 90 degree corners then squeeze between them to get in there.

BTW, i set my rev limiter to 2000rpm if i ever have to leave the car somewhere. Only had to do it once, for an e-test.

"Kaput", spoken like a true frenchman, asti!

Osti mais oui.

Check the Pedal travel/adjustment and the Slave Cylinder travel before you pull that Tranny out.

You never know if might be something simple.

Ghislain.

The flywheel was resurface at a height of 0.610", as described in the VFAQ. Also, I've always had a problem with my old stock clutch, with disengaging, so I've allready replaced the slave and master cylinder. And to make sure to fix that with my new clutch, I've also replace the pivot and ball, and add a washer on the ball. Now the clutch disengage nearly half way of the pedal travel, and that seams fine to me.

There is not much of adjustments in a hydraulic clutch system. Talking of master or slave cylinder "kaput", well it will give me a disengaging problem, not slipping.

Anyway, I will check them to make sure. Is there any small hole, where I can look in, to see if there is oil on the flywheel? The only one I'm thinking, it's where the starter is connected, but there is no way to look in that hole.