Is there a way to tell if the impeller is working?

[Pmt133]

Ayuh,..... Where is the water level on the outdrive when runnin',..??

With it tucked all the down, about an inch above or so above the top of the trim rams. The goal was to make sure at startup the impeller measured below the water surface.

a bucket works on an outboard because you can get the water 8" aove the impeller for priming, however will kill an I/O impeller. always use muffs or a bucket big enough to submerge the entire outdrive.

Noted. Like I said, I've used it solely for testing the impeller and the 3 times now I've used it the impeller needed to be replaced. Symptoms always were runs fine on muffs, not overheats but runs hotter than it should on 75 degree water when out and about. Seems the rubber likes to deform and separate from the composite sleeve on the impeller. But duely noted, I'll just chuck it into the scrap pile instead of keeping it... its kind of a PITA to deal with anyway and my welds are... well... I wish I could say I was blind folded when I did it. Everyone's gotta start somewhere I guess.

 

[Dubed]

With it tucked all the down, about an inch above or so above the top of the trim rams. The goal was to make sure at startup the impeller measured below the water surface.

Noted. Like I said, I've used it solely for testing the impeller and the 3 times now I've used it the impeller needed to be replaced. Symptoms always were runs fine on muffs, not overheats but runs hotter than it should on 75 degree water when out and about. Seems the rubber likes to deform and separate from the composite sleeve on the impeller. But duely noted, I'll just chuck it into the scrap pile instead of keeping it... its kind of a PITA to deal with anyway and my welds are... well... I wish I could say I was blind folded when I did it. Everyone's gotta start somewhere I guess.

Yeah, ditch it. How can you possibly submerge the outdrive above the rams when they would hit the top of any container and not allow it to go any deeper? Im confused

 

[Pmt133]

Yeah, ditch it. How can you possibly submerge the outdrive above the rams when they would hit the top of any container and not allow it to go any deeper? Im confused

Liner is pinned to 4 removable posts container walls sit around the plate on the drive, liner is floated up around like lifting up on a bag in a trash can to get higher water height. Yes it's ugly. Yes I'm tossing it.

Edit: it's on the pile never to be heard from again. Sorry for completely and utterly derailing this thread with my stupidity. Won't happen again.

 

[Lou C]

Impellers work when they are either immersed in water or pressure fed water. They do not suck water, they move it when it is present in the impeller housing.