<VV> compression in cylinders / adding oil

[Matt Nall]

Clark.. under compression the oil spreads out....  piston could be upside down!


Matt Nall
Charleston, Oregon
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-----Original Message-----
From: Clark Hartzel <chartzel at comcast.net>


Many people say squirt some oil in the spark plug hole to get a better
compression reading.  This may work on an inline 6 where the piston top is
horizontal and the oil will run around the top ring equally.  My theory is a
corvair piston is laying on its side and the oil will just lay in the bottom
of the cylinder not doing anything.  Of course you could fill the cylinder
up to the top causing hydraulic lock and bent rods!  GRIN.
Clark Hartzel