1985 Century Mustang
Chief Petty Officer
- Joined
- Mar 9, 2023
- Messages
- 532
I did a pressure test today on my 1980s Mercruiser Sterndrive 3.0 A1G1, the upper and lower together , it's holding steady at 7 psi for 2 hours. Should I be concerned? When I did just the lower, it was amazing. The upper could be hurting I suppose