Ok... I have the service manual and the pictorial diagrams. But no where in the manual do I see a reference definitively pointing to where the impeller is, how to change it, or even mentioning it at all... ??? So I'm hoping someone that has (or has had) a 2QM15 can tell me if I'm about to do this the right way, along with any pitfalls I may run into.
I'm ASSUMING, that the impeller is inside the plate that's ATTACHED to and BEHIND the water pump (looking at the engine from the front.
I'm ASSUMING that I need to close the seacock for the water intake and exhaust (it's raw water cooled).
I'm ASSUMING that I need to loosen the water pump drive belt, remove what looks like 2 bolts holding the water pump in place, then twist the pump without disconnecting the hoses to get to the impeller plate on the back of the pump.
I'm ASSUMING that I can then open the plate, clean it off, remove the old impeller, insert the new one, put on the new gasket, close it up, reinstall the water pump, reopen the intake and exhaust seacocks, start the engine, and inspect for any leaks.
If any of these assumptions are incorrect, please let me know. But here's the part that I'm not sure about... The guy at the marine store who supposedly knows this engine didn't give me a gasket that I assume will need to be replaced for the water pump itself. So does that mean:
- The impeller can be removed without removing the water pump?
- OR I need to go back and get a water pump gasket before I start this?
- OR the water pump is just mounted to the motor with the two afore mentioned bolts and doesn't actually have or need a gasket?