hello there I have a mercruiser 228, brand new outdrive, no thermostat, the boat been running fine until yesterday when I pass 3000 Rpm start overheating once I go down to 2500 rpm or less cool down, what can be the problem, thanks...
Could be many different things. Any why no t-stat? An engine with cooling problems will still overheat, just takes longer. Therefore removing the t-stat does nothing but delay warm up, causing more wear in the engine cylinders.
when I bought the boat 4 years ago didnt have Thermostat and never overheat before, so I never installed one, the engine oil is clean doesnt show any signs of water, can be the head gasket, can the head gasket go bad just like that?...
when I bought the boat 4 years ago didnt have Thermostat and never overheat before, so I never installed one, the engine oil is clean doesnt show any signs of water, can be the head gasket, can the head gasket go bad just like that?...
the shop just installed a brand new outdrive on the boat, I took the boat 3 times after the new outdrive been installed and not problems, this star happening yesterday..
here is what been done to the boat since I owned, last year brand new manifolds amd risers, brand new Y pipe, brand new engine water pump, complete tune up, brand new carburetor, brand new outdrive.
Doesn't matter if it's brand new, look at it. If it has a kink in it because it wasn't pushed all the way on, or the installer had the natural curve of the hose going the wrong way it could be kinked cutting off a large portion of cooling water.
Same with the raw water pump impeller. All it takes is one plastic bag over the intake and you could damage the impeller. On any IO overheat, the first thing you check is the impeller.
ok thanks Don Im bringing the boat to the shop tomorrow he installed the outdrive and the hose, I will keep you guys posted the worst thing I want to hear is that the head gasket is bad thanks....
