HELP! I-5 crankshaft end-play problem

[George Selby]

At 07:22 PM 2/8/04 -0500, you wrote:
>Checked
>the removed shells and found the big ends were oversize - the factory had 
>fitted a reground
>crank.  The mains were standard size.
>
>When I mentioned this a few years ago, several people said they'd seen 
>such engines.


I think this is fairly common across the various manufacturers of vehicles, 
after all, why make a new crank when you can grind a slightly bad one to 
the next undersize and have it work fine.

Most of the American car manufacturers have standard markings for the 
various undersizings so a machine shop can quickly figure out what the 
manufacturer did; for instance, I know a Iron Cross on the main bearing 
journal of a Mopar V8 means the bearings are .001" undersize.

George Selby