highdesert wrote:Thanks for the comments.
I will first take the suggestion of doing a cold compression check, and then a warm one. What is the acceptable compression number? Does the compression check tell me if the rings are sealing ok, or does it tell if the valves are fully closed, or maybe both. Any further tests to indicate more specific head or rings issues?
Remember, at least a half-dozen kick cycles to max out the compression before reading.
Normal compression could/would range from 135-165 (it's dependent on a lot of things--including how macho you might feel that day) with both sides being near the same
. If one side varies more that 10% from the other, then re-test/watch that side. (`Doesn't mean a major problem, but watch it over time.)
Vanilla compression tests will tell you the condition of the rings/valves combined
. If found to be low, then squirt engine oil into the plug hole/chamber to effectively seal off the rings and run the compression check again. If compression goes up, you've isolated the problem as rings. If no appreciable change, then most likely valves.
But if you aren't losing appreciable oil from the tank in comsumption and/or seeing fouled plugs, fuhgedabout.