Just getting my boat ready for the season, it is a 4 cyl, 2.3 l Volvo rubber band engine. Has not run since last summer. Pulled the plugs, #4 looked lean, clean white ceramic on the plug. Did a compression test, and the numbers were #1 and #2 were at 165 psi, #3 and #4 were at 120 psi. Looks like I will not be going boating today.
What I was planning to do, is start it up on muffs in the driveway, let it warm up and re-do the compression test to see what the numbers are. If they are the same as earlier, will try a wet test to see if it changes.
I think it is the head gasket again, changed it last year, but I guess I did not do a good job.
Any other suggestions would be greatly appreciated.
Thanx and have a a great day