dcbullington
Contributing Member
I have a 25 hp (serial # range OB238464) mercury that has got some water in the lower unit. I realize that this is not uncommon and probably requires a pressure test to
determine which seal/seals are the culprit. My question is what is the best way to do this and does it require any special tools? I have an air compressor, can I use air to pressurize the lower unit or does it have to be gear oil?
Thanks,
Dave Bullington
St. Charles, MO
determine which seal/seals are the culprit. My question is what is the best way to do this and does it require any special tools? I have an air compressor, can I use air to pressurize the lower unit or does it have to be gear oil?
Thanks,
Dave Bullington
St. Charles, MO