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May-day Mayday....LT1 Serpentine

Topless

Well-known member
Joined
Nov 12, 2001
Messages
444
Location
San Diego, CA
Corvette
1992 Convt w/hard top; 2004 Z06 Z16; 1962 327/300
I have wanted to do some mods, but only a K&N and the cat-back. I figure it helps me at this point because they can not say that a modification caused the problem.
 

96Holly

Well-known member
Joined
Apr 30, 2002
Messages
117
Location
Livonia, Mi, USA
Corvette
96 LT4 Polo Green Coupe
About the Balencer...

If those boys tried to pry off the balancer, could they have bent the "ears" on the center hub? I just pulled my balancer to change the opti. There are three bolts that hold the balancer (surp. belt pully) onto a center hub. The center hub is then mounted onto the crank snout. If they pull the three bolts and not the center bolt they conceivably could have pulled hard enough to bend the "ears" on the center hub. If they mounted a pully correctly the "ears" would bend all at the same time thus making your balencer off center but not bent.

The hub and balencer do separate but, like mine, was/is probably rusted together.

Anyway food for thought....my 2 cents.
 

Topless

Well-known member
Joined
Nov 12, 2001
Messages
444
Location
San Diego, CA
Corvette
1992 Convt w/hard top; 2004 Z06 Z16; 1962 327/300
The hub was checked and machined. It runs true. It was slightly off, but since they had it apart, it was machined.

Ok, so the update from the Chevy Dealer on Friday:

I got my vette back with a new belt and tensioner. The thought/theory from them was that the pulley had irregular wear on it. Specifically, the next to last (toward the block) ridge was higher than the ridges to the front of the car. This was causing the belt to want to ride up and towards the block. This shift effect was delivered to the balancer/main pulley and that is why it was jumping there first.

So far the belt has not jumped. I figure that if it can last the week, I will be almost home free. (Murphey's law?)

And yes, it was done free of charge. The Service Manager from the dealership that started all of this was at the dealership that was doing this last round of repairs (They are owned by the same guy.) He wrote on the bill to charge to his dealership location. I said thank you and that it was appreciated.

-Mike
 

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