Willhorne22
Recruit
- Joined
- Jun 21, 2014
- Messages
- 4
1999 Larson with a 1998 Volvo Penta 3.0GS MBYMCE
Hi everyone thanks for helping me get through my first boat motor repair I have a bad gut feeling i have a cracked block but, I want to rule out every other option first and get to the bottom of it. I just need some help and advice.
From the beginning. Boat ran perfect all summer. Winter came around I followed the manuals instructions and removed the drain plug from the manifolds and the head. I removed the water pump hoses and drained all water from them. I defogged in and put stabilizer in the gas. I ran it for a good 40 or 50 secs with no water hooked up to it trying to make sure it all came out. This was my first boat winterization. The boats first lake run this year went like this. I idled out of the no wake zone no problems a belt started to squeak then stopped squeaking. I pushed the throttle wide open and started going across the lake watching my guages. My temp starting go up past 200 and i smelt something burning and my engine lost its power and bogged down. I opened engine bay the temp read about 230 I had milky water/oil around and in my carburetor. The water pump belt broke so i just thought it overheated and maybe blew a gasket.
I got the boat home and have started messing with it. For ****s and giggles i wanted to put a new belt on with fresh oil and oil filter and run it and see what it would do. It took in a lot of water so i drained the oil again. Now I have removed the riser Elbow. It had a Gasket Metal spacer Gasket setup. The top gasket was in real bad shape. The actual exhaust manifolds gasket seems to be ok. I have pulled the spark plugs and there was water in 1 or 2 of the cylinders I have cranked and cranked and cranked trying to get it all out. If i try to hand crank the motor it gets harder to turn over in one spot so hard that my starters bendix wont engage but once i get past that one spot by hand i can turn the key and it will turn continuously no problem.
Now I have pulled the Head off. The gasket doesn't look bad but i also dont see any cracks anywhere in the motor. When the water pump belt broke the boat was ran awhile without taking in water.
Hi everyone thanks for helping me get through my first boat motor repair I have a bad gut feeling i have a cracked block but, I want to rule out every other option first and get to the bottom of it. I just need some help and advice.
From the beginning. Boat ran perfect all summer. Winter came around I followed the manuals instructions and removed the drain plug from the manifolds and the head. I removed the water pump hoses and drained all water from them. I defogged in and put stabilizer in the gas. I ran it for a good 40 or 50 secs with no water hooked up to it trying to make sure it all came out. This was my first boat winterization. The boats first lake run this year went like this. I idled out of the no wake zone no problems a belt started to squeak then stopped squeaking. I pushed the throttle wide open and started going across the lake watching my guages. My temp starting go up past 200 and i smelt something burning and my engine lost its power and bogged down. I opened engine bay the temp read about 230 I had milky water/oil around and in my carburetor. The water pump belt broke so i just thought it overheated and maybe blew a gasket.
I got the boat home and have started messing with it. For ****s and giggles i wanted to put a new belt on with fresh oil and oil filter and run it and see what it would do. It took in a lot of water so i drained the oil again. Now I have removed the riser Elbow. It had a Gasket Metal spacer Gasket setup. The top gasket was in real bad shape. The actual exhaust manifolds gasket seems to be ok. I have pulled the spark plugs and there was water in 1 or 2 of the cylinders I have cranked and cranked and cranked trying to get it all out. If i try to hand crank the motor it gets harder to turn over in one spot so hard that my starters bendix wont engage but once i get past that one spot by hand i can turn the key and it will turn continuously no problem.
Now I have pulled the Head off. The gasket doesn't look bad but i also dont see any cracks anywhere in the motor. When the water pump belt broke the boat was ran awhile without taking in water.
Last edited by William Horne; Yesterday at 10:57 PM.
Last edited: