In a message dated 7/21/00 2:14:39 PM Pacific Daylight Time, ccrobins@ktc.com
writes:
> I build engine-powered models. My experience is that some cya glues
> dissolve in petro products. That's why we fuel proof the areas that may
> come in contact with the fuel/oil. This is true for both gas and alky
> burners. All the MG engines I've torn down had oil on the back of the
> thrust washers. How many miles did that engine last?
Two seasons. But even if the glue gives up, where are they going to go? The
remaining gap of 2-4 thou is thinner than the shim stock, so they'd have a
hard time getting behind each other, and no surface is turning against them -
they just sit between the bearing cap/block and the thrust washer in any case.
As I pointed out, the glue is mainly to keep them in place until the bottom
end is buttoned up. It would be nice if the glue lasted indefinitely (and I
have no evidence it didn't in my engine - something else took it out of
service), but IMHO it may not matter as long as it lasts long enough to build
the engine.
Bill
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