How bad does this impeller look to you?

[Nate490]

I mean, I know it doesn't look good, but on a scale of 1-10 how bad are we talking about? The leading edge of one blade has some pretty good size knicks in it. I'm going to swap it out for a Solas and put a new wear ring in because of the cavitation problems I've been having but I was curious to know how bad this is? Sorry for the newbie questions but I'm new to jet boating. I've had jet skis before but I never had any cavitation problems before. Also, should I cut off this excess gasket sealer sticking out of the housing? (Red arrows)

 

[Coastiejoe]

I would trim the sealant. Neither of my skis have sealant. I use a heavy synthetic grease. Everything goes together well and no cavitation issues.

 

[Pirana]

That's a 9-10....

 

[Jcamaro]

That impeller isn't terrible and neither is the wearing ring. I'd say 7 or 8/10 There are some places that will rework that impeller back into tip top shape for a reasonable cost. While it's apart it wouldn't hurt to change that wearing and is a must if you're putting in a new impeller. The excess sealant around the edges is definitely not helping...it can be trimmed carefully with a sharp blade. I had a ton of this excess sealant as well. I picked up a little top end by cleaning it up in there. I don't think that the wear ring and impeller are causing you major cavitation issues in that state.

What I don't like is the gap on the bottom where the sealant is protruding it appears as if this is between parts of the pump shoe....but it's hard to tell.

 

[Nate490]

Trimmed all the sealant, replaced the wear ring with a stainless and put a new Solas prop in. Unfortunately it's pretty windy here in Tampa and there's a small craft advisory so I can't go out for a test today but hopefully tomorrow!