Hi to all! Hope you are having a wonderful holidays!
I have a 94 Merc 4.3L v6. Went to start it after it had been sitting for 3 weeks. I sprayed a ton of carb cleaner down throat of carb to clean gummy stuff out and let it be. I went back a week or two later to start the boat and after half a crank, it would lock up and the starter made a grinding noise. I removed all the spark plugs and when I removed plug for cylinder #3, a bunch of liquid came out. There is no sign of water in the oil. I am wondering if this was the carb spray that funneled its way down into that cylinder and basically caused hydrolock? I attempted to do a compression test on each cylinder, but everytime I put any kind of load on that cylinder, the motor won't turn or compress that cylinder. Any ideas? I want to pull the head to see if i can tell whats going on, but would rather pull the motor and rebuild it during the winter. Just thought maybe someone had this happen and can give me a heads up. Any ideas on a repower also? Any ideas on what could be wrong? Any advise would help. Have a great holiday!
Larry
I have a 94 Merc 4.3L v6. Went to start it after it had been sitting for 3 weeks. I sprayed a ton of carb cleaner down throat of carb to clean gummy stuff out and let it be. I went back a week or two later to start the boat and after half a crank, it would lock up and the starter made a grinding noise. I removed all the spark plugs and when I removed plug for cylinder #3, a bunch of liquid came out. There is no sign of water in the oil. I am wondering if this was the carb spray that funneled its way down into that cylinder and basically caused hydrolock? I attempted to do a compression test on each cylinder, but everytime I put any kind of load on that cylinder, the motor won't turn or compress that cylinder. Any ideas? I want to pull the head to see if i can tell whats going on, but would rather pull the motor and rebuild it during the winter. Just thought maybe someone had this happen and can give me a heads up. Any ideas on a repower also? Any ideas on what could be wrong? Any advise would help. Have a great holiday!
Larry