[alfa] oil consumption

[Joe Elliott <jee@xxxxxxxxxxxxxx>]

Can anyone provide any pointers on determining whether oil smoke in 
the exhaust is coming from ring blowby, or leaky valve guides, or 
both (or anything else that might introduce oil into the combustion 
chamber)?  I'm contemplating some sort of partial rebuild on my GTV-6 
engine, and I'd like to know what's causing the worst of the oil 
consumption, and target that specifically.

I plan on performing another compression test (last one, a couple 
years ago, showed fine compression).  I understand that the 
compression can be fine and still have an oil control issue.  I'd 
like to learn as much as possible before tearing the engine down. 
What exactly is a leak-down test?  Is that something I should invest 
in?

Thanks,
Joe Elliott
'82 GTV-6
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