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Thanks to you both for the quick response. It appears that pump just wasn’t priming. Mechanic disconnected hose again and used his finger to plug until enough pressure built. Now it’s pumping through and temp is back down and steady. We’re going to take her out in the morning and see if it stays.

Hi all, need your help again! We’ve had a mechanic trouble shooting an issue with our starboard engine for the past few days and can’t seem to solve the issue. Starboard engine water pump has been replaced and is pumping water but it isn’t pumping through and out through the exhaust. So engine...

Yea. It’s not going to be a priority for now. But I miss it!

Just blowing air —not cold (or hot when we switch to heat). Sounds like compressor not kicking on. I can hear a click periodically but never compressor. So we just have been keeping unit turned off.

One of our engines stopped running. We were out fishing, anchored, went to head home and port engine started, ran for 10secs and quit. Won’t start at all today.

johnny’s place said they don’t service Mercruisers :( Thanks for trying though!

Thanks we will give him a call!

We are having difficulty finding a mechanic to repair an issue with one of our 2006 Mercruiser 8.1L 496 engines. It went out yesterday and can’t get it back. We are currently in Marathon, FL. Thanks for any leads!

Thanks to everyone for your help! We replaced the pump and the main A/C unit is working great. We are still having issues with the fwd unit but I’m guessing something got messed up when it wasn’t getting water. We are just going to leave it for now since it’s not a priority repair :)!

When we open strainer and sea cock, water is flowing. Can there be a blockage inside the pump? We have checks for a blockage in every other place.

So when we manually bypassed pump with hose water, the system did not trip the breaker and kept running and pushed water through all the way. When we try to manually push through pump, it does what it was doing before (starts, runs for a few mins, trips breaker). So we think it’s the sensor...

That’s what seems likely from our view. Impeller looks tight on shaft when replaced and we put some manual pressure on it with handle of screwdriver while spinning and it seems to keep up but when we use hose water or water poured though funnel, it doesn’t pump it though.

Thanks for jumping in! To answer your questions, we did not use a shop vac to blow down through sea cock but when sea cock is open there is plenty of water. We have used dock hose to put water directly into pump when running. Impeller is spinning but won’t push water through system. #2 We...

Motor was running enough to turn impeller but wouldn’t push water through. Thoughts?

Okay so we have flushed the lines and checked water flow, sea cock etc. everything fine. Then checked electrical current to water pump and it was fine. Took apart pump and impeller is spinning. Primed pump with water through funnel. Can not get water through pump. Only can get water flow all...

Thanks everyone! We will check pump and lines and report back. Much appreciated!

We are currently in Key West, down from Michigan. I think we have the original unit. We will figure out how to flush the lines. Thank you. Boat is new to us in May. Thanks a lot!

Our air conditioner worked great all summer but recently started tripping the breaker after running for a few minutes. No water is coming out of the side of the boat. We have a mechanic potentially coming out next weekend, but would appreciate any troubleshooting tips as we learn how to fix...