Diesel_Dan

well i just got done installing a new clutch in my truck. The clutch is supposed to be a valair that I bought off of ebay. The only problem is I can slip it with very little effort much worse than the worn out one that I replaced. every thing was cleaned with parts cleaner before insalling so I am confident that the flywheel and pressure plate are free of oil and grease. I am also sure that the slave is not hanging up. is there supposed to be a break in period. my truck is pretty mild with only a #5 plate on an otherwise stock '95. Any input is welcome. thanks

Baja

From my experiences the break in period is to help "seat" the clutch to the flywheel. Usually the clutch is very grabby during this period, not slipping. As the clutch breaks in, it will become less grabby, and more friendly to use. I have never heard of a clutch slipping then getting better. I do not know what happened, but what you are experiencing is the opposite of what I have experienced. I don't mean to sound alarmist.

White Ghost

did you have the flywheel turned?

Diesel_Dan

no i did not have the flywheel turned it looked good not burned up so I hit it with a da per chrysler repair manual mabey I should have turned it

MikeR

What friction material is on the disc?
If it has the feramic material, then it will take hunderes of in-town type mileage to break it in.

I've done alot of clutches, and I don't care what the shop manuals say...I always resurface the flywheel.

White Ghost

i done the same thing you done.i ended up redoing the whole clutch again just last week. you might want to pull it back out and have the flywheel resurfaced.good luck.

Diesel_Dan

white ghost did resurfacing your flywheel fix the slippage problem cause right now I cant even begin to think about hooking up a trailer it is that bad

jp8819

The remain seal wasnt leaking onto the fly wheel was it?

Need95-00CTD

^^ I think he means rear main seal...good guess, worth a shot checking.

Diesel_Dan

no there was no oil leak the old clutch was dry and there is no sign of oil leakage i am going to take the flywheel out tomorrow and get it turned and see if that makes a difference

jp8819

yea sorry rear main

dozer12216

Try comparing the new and old components when you remove. Could the disk have been installed backwards? Get another clutch from vendor if possible. Springs/diaphram may be wrong. Turning flywheel generally recomended, but should not be real factor in slipage.

cumminsboy

If its a val-air, it does require a 200 mile break in of stop and go driving. I know this for sure, talk to Dan the man at Val-Air almost every day!! Its all good, just "grandpa" it for a week or so

South Bend Clutch

What do you call driving it like a "grandpa" for a week or so....breaking it in.

Diesel Dan, There is a slight taper in the factory flywheels. When trying to seat a metal facing to a taper, it may take a little extra time. By grinding the flywheel flat, you get full contact to the friction surface and will help with break in.

Peter

Lary Ellis (Top)

Its a Valair........that explains the problem completely

Valair has been banned from this forum, as a courtesy to the members who may not be aware of how they do business, I shut down all threads concerning their product line.