nascar_crazy

I have an 88 Baja 280 with twin 454's. Both engines were rebuilt this winter. My starboard engine doesn't seem to be circulating water properly. When I have muffs hook up to the drive I have to have alot of water pressure for it to start coming out of the exhaust. The port side engine requires very little pressure for it to circulate. I have replaced the impeller with no change. The engine does not run hot. Should I be concerned.

Big Cliff

Is the belt slipping on the pump?

Did the last impeller throw the teeth and maybe something is lodged in the water passages or hose? Back flush if thats the case.

Check the strainer?

nascar_crazy

The belt is not slipping.
Could not find anything wrong with old impeller.
I will check the strainer.
Thanks for the quick response and suggestions.

speedreeder

Double check your sea pump hoses for correct placement. Maybe the reason why they dont overheat is that you are providing just enough pressure with your hose. They may overheat if they are pulling water with the pumps? Try to mark where your good engine takes enough water and switch motors and give it the same water and see if your risers heat up?