Velair clutch slip @ breakin?

[goodstktbo]

Buddy got new trans (5spd) and a valair 400-850 clutch in, put it in in 5th gear at 40mph and slipped like he let out on the clutch any ideas? its a 97 12v with a #10 plate thats IT!!!

 

[displacedtexan]

It shouldn't be slipping. Mine never did.

Yall didn't get anything on the facings did you?

I'd call Dan about it. He's definately a stand up guy. He'll get you taken care of.

 

[derek528]

My valair full feramic 13 inch slipped bad before it was fully broken in.

Derek

 

[Valair1]

Buddy got new trans (5spd) and a valair 400-850 clutch in, put it in in 5th gear at 40mph and slipped like he let out on the clutch any ideas? its a 97 12v with a #10 plate thats IT!!!

did he resurface the flywheel on a flywheel grinder, did he do the break-in period,did he check for clearence on the 12V flywheel, the opening in the center of the flywheel has to be bored out on 12V to 7 inches or more to run the HD hub, if you did all this and or just need more info give me a call at 940-859-1496
Dan

 

[lorendiesel5.9]

Valair clutches are very picky about break in period. I had a full feremic clutch that I didn't break in properly and the thing was down on the rivets in less than a year and that was with less of a setup than what I got on the truck now.

 

[lukesdiesel]

My Ceramic Valair hasen't even though about slipping.

 

[Cam73]

My 13" slipped for a bit during break in just like Dan said it would.. It's held strong ever since. That was 2+ years ago.

 

[goodstktbo]

His clutch is full organic 400/850

 

[goodstktbo]

he wants to know what the center bore is on a stock flywheel?
thanks

 

[goodstktbo]

bump

 

[goodstktbo]

post 9? thanks

 

[displacedtexan]

The bore on my stock flywheel was smaller than the HD centersection on my clutch needed it to be.

 

[Valair1]

the stock flywheel was about 6 7/8 inch.

 

[mfolsomblueD]

I had a single disc on my 04 for like a year and did lots of racing on it and it seen alot of drunk night lol and it never slipped, of course now i upgraded to DD 3600 and love it too and never slipped we run there clutches in every truck at the campous

 

[goodstktbo]

He's back and rolling again, got the flywheel made that tad bigger and resurfaced it. Seems to be working good now.