over heating

[scotty c]

BF50 1999<br />just got off the water and the motor was running fine.<br />put the flush ears on to flush the motor,<br />and i notice the tell tale wasn't peeing.<br />i pulled the tube and i appeared to be clear.<br />then the overheat alearm sounded so i shut it down.<br /><br />the intake is clear, and have not run through<br />any sand etc.<br /><br />whats the next move ?

 

[scotty c]

Re: over heating

ok, that's weird, i just started the motor<br />again, and the tell tale worked, and the motor<br />ran fine for 10 minutes with no over heat.<br /><br />there is not a strong stream, although it <br />has been like that since i bought it.<br /><br />time for new impellor?<br />is that a complicated job?

 

[Navigator]

Re: over heating

Change the impeller, just in case. They should be changed every 2 years as routine maintenance.<br />The job is pretty easy and will take about 1/2 an hour.<br /><br />IF you do a search here on this forum on changing an impeller, you can get detailed instructions. This topic has come up before.<br /><br />Cheers, <br />Nav

 

[scotty c]

Re: over heating

why do you think i would have had that one <br />overheat?<br />i ran it again, and it appears to be fine.<br />maybe salt or crud stuck in the t-stat or<br />cooling passages ?

 

[Navigator]

Re: over heating

Scotty,<br />Pull the t-stat and look inside the engine at the cooling passages. I have a 2000 40hp which is almost the same engine. After running in Saltwater, dispite thorough flushing, I still managed to get a pretty hefty salt buildup in the cooling passages. My first indication was that the tell tale stream was putting out water, just not a really strong stream like it did when it was new. I cleaned out the caked salt and the water pressure returned to normal.<br /><br />You may have the same issue, but unlike mine, you managed to get a piece of debree in the cooling channels and it possibly caused a temporary blockage. That engine should put out a strong stream when its running. (weak when at low idle, but strong when at fast idle)<br /><br />Nav