motor go boom

[Kevin Crain]

<snip>
> So a fresh set of GMPP rods went on.
> 
> 4000 miles later one of the rods separated and sent shrapnel through the 
> rest of the motor. A 1" section of the rod just disintegrated. The rod 
> wasn't twisted, no other signs of problems, it didn't even spin the 
> bearing. The motor kept running, and if a piece of metal hadn't gone 
> through the side of the oil pan, there wouldn't even have been a leak.
> 
> That almost made me give up on this sport :-)

Definitely made me give up on GMPP rods.  I was planning them and the LT4
crank for my next build, but no thank ya.  And given that the ZZ4 blocks
now say "Hecho en Mexico" we can pretty much rule them out too based on
experience with the "Goodwrench" Mexican product.

-Kevin

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org