Understood. It was never an issue before so I’m curious why it popped up today. Not overheating anymore but now I’m hoping o haven’t been frying my impeller every time I ran it like that.You you’re destroying the rubber impeller which is located in the stern drive.., by running the engine through the flush system the impeller is not getting the needed water which it needs to cool the impeller and up to the engine… that’s why it’s overheating.
Should I look to replace the impeller at this point, then? Doesn’t look like too bad of a job.Understood. It was never an issue before so I’m curious why it popped up today. Not overheating anymore but now I’m hoping o haven’t been frying my impeller every time I ran it like that.
Man, my face is a bit red on this one. I completely misunderstood the point of that circulation system, then.Honestly you have been and you’ll be having to do a new impeller very much sooner then you’d normally need to do.
Headed to West Marine to make another “donation” now. How long would you guess I have before I need to pull the trigger on the swap? Rough estimate is fine…Happens more often then not so don’t beat yourself down over it I’m just happy we’re all able to help / work together at pinpoint what seemed to be happening all of a sudden. The photo really helped.
Happy boating this season.![]()
I’d say 15-20 times for a few mins each.How many times did you run it like that? And how long.
As soon as possible than as with this design while it’s a very hardy type impeller that can last the longest out of all the types used in a marine engine environment, the tips should be either breaking down or starting to melt/ burning up inside and causing wear to the stainless steel housing which you’ll want to buy as well using your Stern drive serial number.I’d say 15-20 times for a few mins each.
Alrighty…assuming this is the right kit, I’ll let you know how it goes.As soon as possible than as with this design while it’s a very hardy type impeller that can last the longest out of all the types used in a marine engine environment, the tips should be either breaking down or starting to melt/ burning up inside and causing wear to the stainless steel housing which you’ll want to buy as well using your Stern drive serial number.
You need a certain amount of water flow for normal operation so you really should want to do it as soon as possible hopefully before your next trip out honestly especially if you have a big day planned…, you’ll be changing the drive oil too when doing the impeller. Buy 3 quarts though it’s usually a bit over 2 quarts used.
Sorry nope that’s not the right one…you should have an Alpha stern drive and that impeller is for the engine mounted Bravo drive system unless you happen to have an engine mounted water pump which is usually on lower side of the Chances of having but not impossible either.Alrighty…assuming this is the right kit, I’ll let you know how it goes.
Yeah, it’s a bravo 3 stern drive and the pump is indeed under the engine. Couldn’t be easy..Sorry nope that’s not the right one…you should have an Alpha stern drive and that impeller is for the engine mounted Bravo drive system unless you happen to have an engine mounted water pump which is usually on lower side of the Chances of having but not impossible either.
Odd, your engine serial number 0M663009 suggests the engine Application is an Alpha stern drive so that is what was leading me to say most of the above Conversation… it all still holds the same just with a different location of items mentioned… These impellers are a bit more fragile vs the Alpha drives and should be changed out much more often…Yeah, it’s a bravo 3 stern drive and the pump is indeed under the engine. Couldn’t be easy..
Good to know. I bought it in November and have no idea when it was done last. I’m sure I didn’t help it along but it sounds like I was going to need to do it anyway at some point. Thank you very much for your help and I’ll post pictures of the impeller replacement as I go along.Odd, your engine serial number 0M663009 suggests the engine Application is an Alpha stern drive so that is what was leading me to say most of the above Conversation… it all still holds the same just with a different location of items mentioned… These impellers are a bit more fragile vs the Alpha drives and should be changed out much more often…
You still need to use the muffs when running the engine …The up top was more meant to flush the engine while in the water and engine off.
FYI that style bravo pump has a plastic housing that should be replaced along with the impeller. Merc sells a kit with impeller, plate, housing, seal and hardware for the job. Only parts needed from the old pump are the lock washers and nuts to mount to the bracketThank you very much for your help and I’ll post pictures of the impeller replacement as I go along.
This is the one you’re talking about, right?FYI that style bravo pump has a plastic housing that should be replaced along with the impeller. Merc sells a kit with impeller, plate, housing, seal and hardware for the job. Only parts needed from the old pump are the lock washers and nuts to mount to the bracket
Having a water connection like that you should have a Bravo drive.What do you recommend at this point?
Might be the position of your muffs I found if mine are not exactly right it will overheat even though water is moving through itUpdate: replaced the new thermostat and I did have the top gasket in the wrong spot. Got up to temperature under load and stayed there.
However, it started to overheat when I got it home and used a hose - never done that before. Is that normal?