Re: [Amc-list] One Step Forward, Two Back

[Tom Jennings <tomj@xxxxxxx>]

Joe Fulton wrote:
> Tonight I pulled the rod bearings and found that number two bearing
> had a deep gouge in it.  I checked the crank and that journal looks
> like something heavy had been dropped on it.  I just don't know how
> it happened.  The only thing I can think is that a piece of metal got
> between the bearing and journal as I assembled the motor.  The crank
> is already turned .020 undersize.  I'll take both that crank and the
> spare that I have waiting in the wings back to the machine shop and
> get a diagnosis.  Looks like I'll be buying a new set of rod bearings
> anyway.  Durn, durn, durn.

Damn, what a bummer! But if it's a single gouge with a simple burr or
embedment, couldn't the journal be stoned flat, and the groove in the
bearing scraped flat? It probably didn't turn more than a few turns,
right? Not a year's worth of gritty scoring and bad lubrication... It's
not exactly a race motor, I bet that journal can be saved. The shop will
know of course...
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