So my brother gave me his fishing boat over Thanksgiving weekend. It was prodominantly used in Illinois and was all freshwater fished. He bought it relatively new (early 2000's) and only used it for a few years. As soon as he bought this motor, he had the heads planed for extra horsepower. I drove the boat from Illinois to Florida and it is now in my possession.
We took it out a few times with no issues. Then we took it out again when the motor seized up after shutting off a few times. When we got the boat back to my house, we pulled the plugs and WD-40'd the motor. After a day or so, the motor unfroze by hand turning the pull start.
We took the boat out again the next weekend and it started up fine. After 5 hours of being on the water (mostly slow/trolling at the beginning and running 2/3-full throttle the last 2 hours) the motor seized up again.
We got it back home and pulled the plugs again and did the same thing. This time it is partially unseized. You can pull the motor and about 1/4 turn it will be free and then become harder/seized, then you can pull another 1/4 and it will do the same thing. It isnt fully seized, but becomes difficult to pull after each 1/4 turn.
No overheating happened (or atleast the alarm), it was pissing water fine and no smoke other than the normal grey smoke. It literally just shut off
In between the first and second seize, we originally thought it wasnt receiving oil from teh injector so we removed the oil injecion reserve and started mixing the oil and gas.
Any thoughts?
We took it out a few times with no issues. Then we took it out again when the motor seized up after shutting off a few times. When we got the boat back to my house, we pulled the plugs and WD-40'd the motor. After a day or so, the motor unfroze by hand turning the pull start.
We took the boat out again the next weekend and it started up fine. After 5 hours of being on the water (mostly slow/trolling at the beginning and running 2/3-full throttle the last 2 hours) the motor seized up again.
We got it back home and pulled the plugs again and did the same thing. This time it is partially unseized. You can pull the motor and about 1/4 turn it will be free and then become harder/seized, then you can pull another 1/4 and it will do the same thing. It isnt fully seized, but becomes difficult to pull after each 1/4 turn.
No overheating happened (or atleast the alarm), it was pissing water fine and no smoke other than the normal grey smoke. It literally just shut off
In between the first and second seize, we originally thought it wasnt receiving oil from teh injector so we removed the oil injecion reserve and started mixing the oil and gas.
Any thoughts?
