Hello Everyone.
I just did a compression test due to finding water in the oil after I did a oil change on a 5.7 mercruiser. I was hoping the water was from the garden hose and suction cups that I was using to get cooling water to the motor during the time to heat the oil up before pulling the oil out, I left the hose on when the motor was not running so I think I pushed water into the oil, but to make sure I did a compression test to make sure no head gasket failure.
here is the numbers, left side head # 1 180 psi, # 3 160 psi, # 5 150 psi, # 7 160 psi,
Right side head, # 2 120 psi, # 4 150 PSI, # 6 160 PSI and # 8 140 PSI
I hope that the # 2 being lower then the others is not from a blown head gasket
any inout would help.
Thanks
Rich
I just did a compression test due to finding water in the oil after I did a oil change on a 5.7 mercruiser. I was hoping the water was from the garden hose and suction cups that I was using to get cooling water to the motor during the time to heat the oil up before pulling the oil out, I left the hose on when the motor was not running so I think I pushed water into the oil, but to make sure I did a compression test to make sure no head gasket failure.
here is the numbers, left side head # 1 180 psi, # 3 160 psi, # 5 150 psi, # 7 160 psi,
Right side head, # 2 120 psi, # 4 150 PSI, # 6 160 PSI and # 8 140 PSI
I hope that the # 2 being lower then the others is not from a blown head gasket
any inout would help.
Thanks
Rich