I recently was given a 1987 Four Winns 190 Horizon with a MCM 165 4cyl. It has been covered in a barn it's entire life. UNTIL last winter. It was left outside with the cover ripped. The bilge plug was not removed and it filled to about mid engine with rain water.
I got it home and cleaned out the interior and found it to be in near factory condition.
I drained out 7 quarts out of the oil pan ( 2 of which were water). 5 quarts oil.
I put in 5 quarts of oil in and tried to turn over the engine (using the hamonic balancer bolt holes) but it was siezed.
I pulled the plugs and put a quarter pint of marvel mystery oil in each cylinder and let some for 24 hrs.
I was able to get the motor to turn back and forth in each direction and increasing the revolutions with little effort using a pry bar.
I pulled the starter, the outdrive and the power steering belt.
I pulled the valve cover and found the rockers to be rusted but all move appropriate.
I poured another quart of oil over entire rocker assembly.
MY QUESTION :
What else should I consider before attempting to start this motor that hasn't started in 5 years and had a season of rain water intrusion.
I got it home and cleaned out the interior and found it to be in near factory condition.
I drained out 7 quarts out of the oil pan ( 2 of which were water). 5 quarts oil.
I put in 5 quarts of oil in and tried to turn over the engine (using the hamonic balancer bolt holes) but it was siezed.
I pulled the plugs and put a quarter pint of marvel mystery oil in each cylinder and let some for 24 hrs.
I was able to get the motor to turn back and forth in each direction and increasing the revolutions with little effort using a pry bar.
I pulled the starter, the outdrive and the power steering belt.
I pulled the valve cover and found the rockers to be rusted but all move appropriate.
I poured another quart of oil over entire rocker assembly.
MY QUESTION :
What else should I consider before attempting to start this motor that hasn't started in 5 years and had a season of rain water intrusion.