Subject: Another Compression question
Author: brian c
Date: May 3, 2005, 7:02 AM
Post ID: 1718805081
I got an oddball reading on my Eldo last night- I had not compression
tested it before, as it runs very well and I have had no problems with
it. But looking at Greg's recent posts and the fact that I was
procrastinating in the garage led me to pull out my trusty compression
gauge- and on my warmed up engine with both plugs pulled and throttle
WFO- I get a reading of 205lbs PSI - both sides identical. I have used
this exact gauge on at least 4 or 5 other loop engines over the years
and different stages of their lives, and all have registered between
130lbs and 165lbs-. I have had this engine apart and there is very very
little carbon build up. What else could be causing the high reading? I
should mention that when I torque my head bolts I generally overtorque
them about 4 ft lbs from fafotry spec (to 42 ft lbs I believe) , but I
have done this on the other motors that have been compression tested as
well.
Brian
near Berkeley, CA
'72 Eldo
'74 Eldo
'95 1100sport
'73 v7sport project