Look under the boat for a intake. MUC said there should be a Y connection so go from the brass pump and follow the hose back to the Y and then see where the 2 hoses go
Agree, but we need to know is it the Alpha to Bravo connection which is causing the overheat, or something else
I actually think it would work fine to remove the drive impeller and plate so water flows freely, but has not been tested that I know of
Good
Then lets work on voltages to were they should be. Probably something simple like a kill switch or other.
Put a meter on the Battery and see if you can read 12.7V
I looked your motor up and both Alpha and Bravo show a belt driven raw water pump (Bravo type). Look forward to what Fun Times finds. I would bet a nickle there should not be a impeller in the drive
Does the more raw water pump run from a belt of off the crankshaft?
Hey @Fun Times can you look up this serial number 0W312448
Looking to see if it came with additional raw water pump
Something jut doesn't sound right about that. Has a Alpha drive and Bravo or crank mounted water pump?
Which other pump does it have?
My initial thought is motor was getting hot and original dealer had a motor run pump installed. From my thought I would rather see the impeller removed from...
I'm no expert on the old OB motors (hope to see some of those folks chime in) but do know that ethanol is bad for the old I/O's. 91 octane gas won't hurt the motor but you may have slightly less HP. The higher the octane the slower the gas burns
Spec for that motor is 43 psi and you should see right around 40 psi at idle
If you were getting more then that it could be the Regulator, but less then that could be wrong regulator was installed
If it was mine I would pull injectors and have them cleaned and flow tested. Would also send them...
