Recently bought a boat with a mercruiser 4.3 and alpha one out drive. It did not pump water at all before. I just replaced the impeller, it is pumping some water but overheating. I took off hose from out drive and it does not really pump any water at idle but when revving it it birps water out and does not seem adequate to cool engine.
I also made the mistake of taking out the old impeller without seeing which direction the new one should go in. I don't know if I put the fins in the right direction. Could it be that I broke the impeller?
I also made the mistake of taking out the old impeller without seeing which direction the new one should go in. I don't know if I put the fins in the right direction. Could it be that I broke the impeller?