Update
Thank you all for your input. So I flushed engine with two gallons of muriatic acid. First flush let soak for 15 minutes and then repeated before flushing with sea water. There were lots of brown water discharge. Ran engine at medium revs to flush but engine began to over heat again after 15 minutes.
So I took off hoses and checked the water lock muffler to see if it was,plugged. It was clear, looked new. The exhaust hose was in bad shape so I removed it. I will also replace the hose leading to the water lock muffler. Will check fitting exiting water manifold tomorrow. New exhaust hose arrives tomorrow afternoon.
I will also block water flow to thermostat bypass.
Will look at impeller to see if I put it in backwards. Never knew it only worked one way?
|