Kohler 20kw

[Sam92881]

My marine generator is not pushing enough water through the muffler!! I replace the row water pump I clean the heat exchanger I flush with water hose and i started the generator is still not enough water.
What else can I look for
Can everyone out there can Gide me in the right direction to fix this problem
Excuse my spelling.
Thank you.
Sam.cardenas

 

[PascalG]

How did you clean the heat exchanger? Did you just use water? Circulating a mix of water and barnacle buster may be needed to get rid of deposits.

Also, did you open the inlet side of the heat exchanger and check for impeller pieces?

I assume you cleaned and the sea strainer but you could also have a blockage outside at the thru hull. Growth or things like a plastic bag

Finally make sure you don’t have a suction leak between the thru hull and the water pump.