Hi, I have felt that my engine has been a bit low on power. It runs to good to be running on one cyl, but I'm not getting the speeds I should. Took it up and measured compression today. 110 PSI on the lower cylinder and 70 on the top. Tried putting some oil in the top cylinder and remeasured at 95 PSI. According to the tester-manual the rise in compression after adding oil is an indication on worn piston rings.
1. Do you agree?
2. How hard are they to replace?
3. Do I need to fix both cylinders or only the faulty one?
4. Can I keep running for the summer and fix it in the winter?
I've had trouble with the VRO lately, getting water instead of oil, and having a leak in the vacuum membrane. Could this have been causing the problem? (As far as I have figured out, this should have destroyed the lower cylinder, not the upper).