Onan 12kw diesel generator water pumps

[Pcravens]

I have a 12 kw diesel generator that will run 10 to 15 minutes n shuts off because it over heats. Had a guy rebuild or so he said he rebuilt the raw water pump. Where can I get new pumps or rebuild kits for both the engine pump and the raw water pump. OMDJC-3CR/2268AA. Serial number H790443537. Thanks

[prowlersfish]

I would check the exhaust riser for restiction. As far as the pump Check with Bob at Beacon marine, Depco pumps or Cummins/Onan dealer.

[Pcravens]

Do I just take all the plugs out of it n try to flush it or take it off

[Pcravens]

Also some one has replaced the original engine coolant pump with a Oberdorfer 50R 35

[Pcravens]

Took pumps apart cleaned them impeller look good , put back on. Took all the plugs out I could find n hoses on the heat exchanger off , blew through all of them and all the hoses put all back together filled with antifreeze now it’s running like it should so far. Ram it over a hour with both air conditioner on n other stuff running pulling a load with no issues.

[prowlersfish]

Also some one has replaced the original engine coolant pump with a Oberdorfer 50R 35

I have not heard of anyone yet.