RE: Compression test how to

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

> I have found that it is best to take all the plugs out before starting
> the compression check.

In fact, most course manuals say to do it that way.

>  If the engine has set for any length of time a
> squirt of oil into each cylinder will help achieve correct settings.

That I disagree with !  Squirting oil into the cylinders will mask leaking
rings ... in fact this is exactly how one tests whether it is rings or
valves that are leaking.

Randall