We have been fighting an over heating issue for a bit now first the impeller was bad and not pumping water second the thermostat was stuck closed third the passages on the exhaust side of things were gunked and we weren’t getting good flow fixed all of that and went out on the water and were good all day long till the end of the day it started getting hot again around 185.
we used some rydlyme to try and clear out the rest of the calcium build up and such and are getting lots of exhaust flow now, however we went out yesterday and the water pump hose that’s about 2.5in blew a hole in it.
Found a new one threw it on and hoped it went from being old and not in the best shape, but now the boat is over heating again and that hose has a fair amount of pressure in it however the hose going to the exhaust manifold does not so it seems to me like we have an issue on the engine side where water isn’t flowing? Any ideas on common problem areas or ways to try and clear out that side of things?
mercruiser 140 1984
serial number 6805225
alpha 1 gen 1 stern drive
we used some rydlyme to try and clear out the rest of the calcium build up and such and are getting lots of exhaust flow now, however we went out yesterday and the water pump hose that’s about 2.5in blew a hole in it.
Found a new one threw it on and hoped it went from being old and not in the best shape, but now the boat is over heating again and that hose has a fair amount of pressure in it however the hose going to the exhaust manifold does not so it seems to me like we have an issue on the engine side where water isn’t flowing? Any ideas on common problem areas or ways to try and clear out that side of things?
mercruiser 140 1984
serial number 6805225
alpha 1 gen 1 stern drive