OK, I did not winterize my motor. Lets just say I know better but have been distracted this winter... and we did have a couple light freezes this winter in the Sacramento valley this winter.. but not that cold?? we thought.. anyway. I do a plug n cap/rotor change, and warm the oil to pump it out. The engine ran perfect. I notice the oil is coming out milky from the electric walmart pump and freak. I pull the dipstick again... and it is clear oil! This is after running it a good 10 minutes to warm. OK, I feel better. I really thought I had a vacuume leak and the oil was aeriated. I suck all the milk out and then pull the oil filter.. it is full of milky oil. Damn.. I do not know why the oil on the dipstick was clear.. but this all leads to a internal crack. I also noticed the water coming out of the drive with the hose attached was rusty for a looong time. I thought it was rusty manifolds... now thinking oil was coming out of exhaust?? So.. I know the oil was clear on the dipstick after I warmed the motor. And the exhaust water was dirty. I am perplexed.. So...my question is if anyone can help me.. if indeed I did have a freeze crack, how can oil exit my exhaust... and enter my block? What can I check first before I pull the motor>>?? No sign of water leaking externally. This motor is in a pontoon boat... like 6 feet off the ground on a trailer. So no easy task getting the motor out. Think back hoe? Any help in what I can check while the motor is in the boat before..before.. I go to the trouble of pulling the motor. I have rebuilt several motors, but never had one freeeze. Oh yea... I did also forget to take the bilge plug out. the water went up from rain about 10". Not high enough to reach starter or alternator.. thats what started by freak on first....whew...but not really once I dug... can water make it to the oil by the exhaust gaskets? Is it possible for a head gasket to go bad from a freeze? These are the easy fixes I am thinking minus pulling the motor out.. uggghh
