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View Full Version : Lifters came apart again



Schuylkill-trans
08-09-2004, 10:55
This month four more vans had lifters come apart.2000 6.5L. Van 1 78,000 came apart while idling, van 2 was done by dealer 102,000 came apart again 105,000 and again @106,000. New engine is now ordered.van 3 done aftermarket lasted 18,000 and popped apart and van 4 lasted 18,000 after dealer installed new lifters.All the general questions have been cleared and no answers as to why.Four dealerships and one privite garage have work on this fleet of 16 vans of which 13 have come apart from one to three times each.This is one for the masters as even some engine rebuilders are not sure why.

markrinker
08-09-2004, 12:50
1) What oil (brand/rating) are you using;
2) What filters are you using;
3) What type of vehicle use?
4) Vehicle weight/cargo weight hauled?
5) Cruise RPMs?
6) Max RPMs?
7) Stock 6.5 camshaft?

Most GM lifter problems I have experienced could be traced to improper cam selection, poor lubrication, overreving, or combinations of two or more of the aforementioned...