| Re: [GMCnet] 2017 Breakdown & Engine Replacement [message #326284 is a reply to message #326220] |
Thu, 23 November 2017 10:19   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Then, you can pretty much rule out detonation as a cause of piston failure.
At some point,it really does not make much difference when only one piston
fails. I would lean towards manufacturing defect that took this long to
manifest itself into failure. Without destructive testing and scientific
analysis of the remaining bits, the cause will likely remain an educated
guess.
It is critically important to absolutely insure that no debris remains
anywhere in the oil cooler or lines. Important enough that S and J refuses
to warranty any engine that re-uses existing coolers. If the engine
grenades, I would agree. If it just plain wore out or had burned valves or
seats, I might gamble on flushing out, catching the stuff that comes out,
and then deciding after inspection confirms no metal particles were flushed
out.
But, it is your money and time invested here. Spend it wisely,
grasshopper. (Grin)
Jim Hupy
On Nov 23, 2017 7:49 AM, "Ray Erspamer" wrote:
No marks on the top of the piston at all.
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