#10 lifter tray failure, any truth to this?
09-01-2013, 11:10 AM
#1
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#10 lifter tray failure, any truth to this? I read somewhere that the ls1 lifter trays with a 10 on them have a higher failure rate of letting lifters rotate. I just had it happen to me the other day, 108k stock bottom end, tr224 cam .563 lift. 918 springs, unknown mileage I just bought it that way a few months ago. Actually had a set of new springs sitting in the garage but never got around to changing them.
Anyway, noticed a ticking one day on the highway. It kept getting worse and 500 miles later I have no oil pressure. The lifters for the intake side on 1 and 3 both turned and ate up the cam, then the metal bits jammed the oil pump pressure relief valve. they were in a #10 tray. None of the other trays were 10, and they were all fine. Random chance or what?
Anyway, noticed a ticking one day on the highway. It kept getting worse and 500 miles later I have no oil pressure. The lifters for the intake side on 1 and 3 both turned and ate up the cam, then the metal bits jammed the oil pump pressure relief valve. they were in a #10 tray. None of the other trays were 10, and they were all fine. Random chance or what?
09-03-2013, 03:56 AM
#4
Yes, you don't hear much about it now though. There are old threads where this was documented. Some of the #10 trays had a slight angle such that the roller didn't run true on the cam lobe and ultimately this caused the roller to fail.
I ditched my #10's the first time I had the motor apart.
I ditched my #10's the first time I had the motor apart.