At the dock the boat starts fine with water comming out the exhaust, after a sail no water comming out the exhaust? Anyone have a this problem
Impeller issues
- Thread starter j-fitz
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1984 m-25 engine the degree of heel is a not a factor. engine temp climbs past 160 before I shut off engine.
Sounds like you should replace your impeller as a precaution, as it is the most likely culprit due to its wear & tear. If your diesel is fresh water cooled I would verify good flow from the exhaust of the heat exchanger. It can be hard to verify water flow out of the exhaust port on the transom while underway, if you have wave action astern. The transom usually is covered with sea water. Where is your boat located on the York? My C-30 is at Crown Point Marina on the Perrin, off York River, near the mouth.
you might also consider checking the sea water thru hull for any blockage as well as the strainer at the shut off valve.
What thermostat do you installed. There are two available, 160 and 180.
No water means it's a blockage or an impeller. To check for blockage, I find it's easier to take the incoming hose off the raw water pump and blow back through it with a dinghy foot pump.
Cheers, See ya sometime at Crown Point - I have the older 1980 5411 2 cyl. diesel so I can't really compare my engine to yours. I would guess as noted above either a blocked main water intake thru hull, or a blockage by corrosion in your heat exchanger. Take the hose off & verify as noted above. Good luck.
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