18 years ago
bottom of the crankcase. It seems to be all liquid, but
thick enough so that it doesn't flow very well, and even
with the compressor blocked up so the sump is tipped toward
the drain there's still a fair amount that won't come out.
Changing the oil several times would likely clear it all
out, but there's enough water in the goo that it does make
the new oil creamy pretty quickly. What about flushing with
ATF or other light oil? I'm not talking about running the
compressor this way - just pour in a quart, slosh with a
long handled brush or something thru the filler plug,
drain, repeat as required.
The advantage I see to using ATF is it's *much* cheaper and
much less viscous at room temp than compressor oil. If it
was a gearbox I'd flush with kerosene, but don't want to
introduce anything that volatile/flammable into a
compressor. Any thoughts on this?