One of the important things to note in a compression check is that all the
cylinders are at the same (or very similar) values showing that no one
cylinder is weak. I don't know what the expected values should be, but the
consistancy between cylinders is often a good thing to see.

-Craig
'85GL turned WESTY
BOSTIG in the back

On Thu, Dec 31, 2009 at 1:06 PM, Stephen Cebula <sfcebula@yahoo.com> wrote:

> I'm looking at an 84 Westy on Saturday.  The guy want $6500 for it.  It
> looks really clean but has 170K on the original motor.  He sent me a copy of
> the compression test he had done in 2007 when he bought it.  It shows 140psi
> on all 4 cylinders.  I'm planning on having another one done when I go look
> at it.  What would be an acceptable number?  I've heard 145-190.
>
> Thanks,
> Steve
>
>
>
>