bluecollerboater
Petty Officer 2nd Class
- Joined
- Jan 2, 2007
- Messages
- 123
Ok I have a new to me boat with a 1995 volvo penta 5.7gipmda. When I first started it two weeks ago it was pumping water fine and manifolds were a little hot. Some rusty water came out the exhaust on the first start up. but cleared up fairly quickly. I Was working on another problem from a different post and I was running the engine on muffs, I noticed more exhaust smoke coming from the back of the boat than usual. so I looked at the water ports on the outdrive and they didn't seem to be pumping as much water. I have run this boat half a dozen times in the last two weeks and the manifolds have not gotten this hot. I checked the thermostat it was a 165 and manually it was working (freed up not rusted) the temp gauge was reading 180. My question is do you think this is some sort of blockage or bad impeller or bad circulating pump or manifolds and risers? What should I check first? Thanks in advance.