Good day all.
I have a Moyer exchange engine with about 50 hours on it and I have a lot of steam coming out of the exhaust. It is fresh water cooled and runs at 190 degrees at 1700 RPM. If I try to run it faster the temp starts to climb.
I had the heat exchanger hot tanked at a rad shop when I put the new engine in.
I thought perhaps I am not getting enough water flow from the raw water pump so I took the outlet hose from the pump and led it into a bucket
and started the engine for a few seconds to check the flow.
I get only what I would call a strong trickle from the pump with the engine
running, almost the same as with the through hull open but the engine off, not a strong flow as I would expect.
OK so, open up the pump..all the vanes ar present and accounted for. Put in
a new impeller anyway but no change to the flow rate.
Question..how much flow should I be gett from the raw water pump?
I should also mention I have checked all the hoses, Exhaust manifold, Riser etc and can find no blockages.
Anybody got any ideas? I have run out of things to check.
Thanks for any ideas you can share.
Pat
Lions Den
1972 Ericson 35-II
I have a Moyer exchange engine with about 50 hours on it and I have a lot of steam coming out of the exhaust. It is fresh water cooled and runs at 190 degrees at 1700 RPM. If I try to run it faster the temp starts to climb.
I had the heat exchanger hot tanked at a rad shop when I put the new engine in.
I thought perhaps I am not getting enough water flow from the raw water pump so I took the outlet hose from the pump and led it into a bucket
and started the engine for a few seconds to check the flow.
I get only what I would call a strong trickle from the pump with the engine
running, almost the same as with the through hull open but the engine off, not a strong flow as I would expect.
OK so, open up the pump..all the vanes ar present and accounted for. Put in
a new impeller anyway but no change to the flow rate.
Question..how much flow should I be gett from the raw water pump?
I should also mention I have checked all the hoses, Exhaust manifold, Riser etc and can find no blockages.
Anybody got any ideas? I have run out of things to check.
Thanks for any ideas you can share.
Pat
Lions Den
1972 Ericson 35-II
Comment