A dry check is on the engine, warm or cold, just using the starter.
A wet check means that you squirt some motor oil into each cylinder
before you test it. The motor oil helps seal the rings, which means
that if you still have low compression on a given cylinder, the cause
is most likely to be a burned valve or a valve that doesn't close.
Regards, Bill
On Apr 22, 2007, at 6:29 AM, Doug Altman wrote:
> Is a "dry" compression check on a cold engine just using the
> starter and a "wet" check using a hot, running engine?
|