new 348 twin disc clutch installed issue

1991 348ts with factory twin disc clutch assembly. Over winter we did some digging and found some oil leaks
coming from clutch/flywheel area. Further diagnosis took us to leaking triple seals. So, we then ordered new clutch assembly from Ricambi America (AP racing if im not mistaken) and rebuilt flywheel with klebflur grease. We DID NOT touch the release bearing assembly whatsoever besides a basic wipe down. After installing all new parts. The clutch pedal is now grabbing right at the very top of the pedal (similar to a worn clutch) and shuttering fairly harshly. checked basics and pedal adjustments - all seem ok. Has anybody ever ran into this issue before? Possible air got into system somehow or some adjustment in bearing through??

Thanks,

Lucas

 

Thank you for the quick response. When we installed the new plate, the fingers moved quite a bit compared to any other clutch assembly probably about the same. What we did last night was take off the little inspection cover and with someone in the car we watched the throw of the bearing against the clutch, seems to be moving properly, lots of movement against the plate... that being said were unsure if its returning to correct position. we tried pushing it back with a pick and we had no luck. We also tried bleeding the clutch system - fluid was black and nasty but we don't think it made any difference. We will be road testing again tonight.

 

Thank you all for the replies. We took apart the entire system again measured all related parts - everything is within spec. We compared it to the old clutch assembly, all ok. Check release bearing throw, we think its a bit hard to push back on the shaft but were not 100%, thoroughly flushed the system and placed it all back together. no change whatsoever. My next step I think is to re-install the old assembly and see if anything changes.
We've also done some digging into machining the clutch master to a different sized bore .. not something I'm comfortable with doing because Id rather not mess with OEM parts. Another thing is I've been reading that this may be normal? Might just need to be driven a bit to let everything settle?? I'm not the biggest fan of that idea as we are experimenting with a pretty expensive clutch.

any ideas???

Thanks,

Lucas

 

We pressed the flywheel out of the housing, split the flywheel housing following "my348.com" procedure. cleaned all the nasty old grease out of the middle springs and packed with all new fresh klebflur grease. Then placed it all back together,
as for the SUH measurement, I'm not 1000% on my memory but I know that it was in spec - I want to say 48mm

 

We did not resurface flywheel with a machine shop. We cleaned it up minorly by hand. there wasn't any heavy hot spots or anything .. as for the throw out bearing we did not replace because the clutch was replaced because of being soaked in oil, not worn so I didn't feel it was necessary.

can you expand of the angle and preload you are speaking about? How can I check or adjust?

 

We also removed the flywheel again, checked clearance and made sure it was sitting correctly. Everything looks ok

 

I understand what your saying but, even if a flywheel not resurfaced, should that really affect pedal feel? the car ran and drove with the old clutch on that flywheel and the pedal felt great, like I said it was replaced because it was covered in oil

 

Not really interested in how long you have done "this" for, I'm dealing with something that usually really shouldn't be an issue. At this point the release bearing is working correctly, there is no leaks at all and the flywheel measured in spec. I understand that this isn't the most perfect way to perform this job but I'm not here to debate on whos smarter than who.
I've worked in dealership where they will not authorize release bearings just for the "while your in there" option, if the parts are still in correct working order I don't see a reason to replace. I am also not ruling out a bad bearing.

I'm looking for information on the system not to argue with people.

Lucas

 

I believe the new supplied AP clutch had them tacked on,I'm going to double check forsure but im almost positive there there. Thanks for the tip!

Lucas