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RE: More datapoints on my ur-Q



> In message 
> <8763AE987517D2118C0500A0C9AB234C2FFE@tegntserver.tegjeff.com>
>  Douglas Quebbeman writes:
> 
> > The compression test, performed on a warmed-up engine, yielded
> > about 100-110psi per cylinder. While I had each spark plug out,
> > I looked inside at the piston tops. Lots of deposits on them,
> > they look like a strange combination of carbon and petrol-on-
> > its-way-to-becoming-pure-carbon. Plus, I got a lot of strange
> > yellow powder blowing out each cylinder ...
> 
> Rust.

Oxidation I believe, but I've never seen yellow rust before, always
red, red, red...

Does the compression seem reasonable for a WX engine?  -dq