Join Date: Jan 2005
Location: San Juan Capistrano
Don't forget to dribble a little oil into each cylinder when doing the compression check. If you don't do this, you can end up with low readings.
Whoa, whoa - You're right, dribbling in a little oil will raise the readings if
worn rings are the culprit. So yes, that's a diagnostic: if compression is low without oil, comes up with oil, blame the rings.
However, that doesn't mean:
1) you should always dribble in some oil before measuring compression.
2) if the readings are high with oil, then everything is fine.
San Juan Capistrano, CA
'65 Guilia Sprint GT