My conclusion: tell me if I’m wrong

[Topless]

Originally Posted by Gilles

Also, another related failure could be caused when the con rod bolts stretch, which leads to a spinning bearing, loss of oil pressure...

It is assumed that the connecting rod bolts stretch by continuous high rpm's (metal fatigue perhaps..?)

The fastest way to stretch rod bolts? Downshift over rev. Zing it past redline during heel/toe with no load on the motor a few times while entering a corner and rod bolts become stressed/stretched.

Clogged oil passages is another possibility especially if someone was *liberal* with sealant when replacing the pan or adding a deep sump. If that was the cause you could probably fish the oil passages and find it. Another telltale sign is the oil pickup screen completely jammed with excess sealant.

[NewArt]

Originally Posted by Topless

The fastest way to stretch rod bolts? Downshift over rev. Zing it past redline heel/toe with no load on the motor a few times while entering a corner and rod bolts become stressed/stretched.

Clogged oil passages is another possibility especially if someone was *liberal* with sealant when replacing the pan or adding a deep sump. If that was the cause you could probably fish the oil passages and find it. Another telltale sign is the oil pickup screen completely jammed with excess sealant.

Possibly guilty of the first situation but definitely guilty of the latter. Many orange snakes found in the pickup screen and one can assume that there were smaller pieces that squeaked by! Did I mention how stingy I was with a better sealant on the new install?

[BYprodriver]

[QUOTE=Topless;595182][B]The fastest way to stretch rod bolts? Downshift over rev. Zing it past redline heel/toe with no load on the motor a few times while entering a corner and rod bolts become stressed/stretched.



This is the only reason I put aftermarket R&R rods in my rebuilt engine.