RE: low compression

["Randall" <tr3driver@comcast.net>]

> Okay, I'll bite:  What kind of engine uses pipe threads for sparkplugs???

None ... but he didn't say the sparkplugs were pipe thread, he just said you
could force a plastic NPT fitting into them.  It works.

I took a slightly different route, found a $15 compression gauge with a hose &
fitting for the spark plug hole.  The hose unscrews from the gauge, and has 1/8"
pipe thread on it ...

Oh, and sometimes you have to wait quite awhile for the bubbles to show up in
the cooling system.

Randall