Monday, Dec 26, 2011 at 16:57
Hi Oboe,
The above posts have all contributed good information, and things to check for regarding clutch shudder.
I have come across, including with my own 2.8 Ln106 with new hd clutch.
I had good engine mounts, and gearbox mounts, new center bearing (trick for those about to replace theirs, before you fit the new center bearing, get some sika, I use the black stuff, and inject it into the rubber that holds the bearing in the middle.
By packing that void with sika, it stops the rubber from flogging out in 20k and will last alot longer than if you don't do it.)
Anyway.
Even with everything being in good condition, and with the flywheel machined, if it was cold, and in particular, damp, the clutch will shudder until it warms up a bit and the moisture is gone.
Sadly its a common problem with the asbestos free friction material that they use now. When they first started using that stuff in brake pads, we had alot of issues with grabbing when cold and or damp, excessive wear etc.
I ended up removing the gearbox 3 times, tried different grinds on the flywheel and even the pressure plate assy to help with it bedding in and removing high spots on the clutch plate, all to no avail.
Genuine clutch plates don't seem to have the problem to the extent that most after market clutch's do.
If its within warranty, take it back and see if you can see any obvious faults with it, as its always worth checking, if not, see if you can fit a gen clutchplate with different friction material, tho some clutch manufacturers will claim that they use the same if not better material, but I digress.
As the clutch beds in and wears off the high spots, it may improve, but there is no guarantee that it will.
hope that helps you make an informed decision.
Trains
AnswerID:
473354
Follow Up By: Oboe - Tuesday, Dec 27, 2011 at 10:34
Tuesday, Dec 27, 2011 at 10:34
Hi Trains,
Thank you for your reply. Have a feeling i may be in the same boat as you and will just have to deal with it. When the shudder has been at its worst as with yours it has been on wet days so makes me think it is made worse with moisture and maybe a slight leak from the rear seal.
Mine is also the 2.8 Ln106 just in case people where wondering. What HD clutch did you put in yours? Thanks for all your info. Have a great New Years.
Obo
FollowupID:
748211
Follow Up By: trains - Wednesday, Dec 28, 2011 at 10:51
Wednesday, Dec 28, 2011 at 10:51
Hi Oboe,
If its only a few months old, it wont be oil, as you would have noticed alot of black oil on your driveway from the bellhousing area.
And the mechanic would have informed you of your previously oil soaked clutch and need for a new rear main seal and possible speedy sleeve on the crank.
I would also expect that they cleaned out the bellhousing of any excess oil buildup and dust there too whilst doing the clutch.
It dosent sound like they bent the clutchplate when installing the gearbox, as it would do this all the time, and give other problems you havent mentioned.
I would not try "burning" in the clutch as previously mentioned, as you only wear away usable life from the friction material, possibly cause hot spots on the flywheel and pressure plate, and cause other problems that you currently dont exhibit. (the vehicle that is, not you LOL ).
Have a word with your mech who did it, and let them know its not acceptable, and ask what they can do about it.
Not fun having your false teeth fall out driving out the driveway LOL
I jest, but it can be pretty bad.
:)
Happy new year.
T
FollowupID:
748300