Marvin willis
Jetboaters Admiral
- Messages
- 1,502
- Reaction score
- 920
- Points
- 267
- Location
- Morehead city nc
- Boat Make
- Yamaha
- Year
- 2018
- Boat Model
- AR
- Boat Length
- 24
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If the gaps are within specs I wouldn’t worry, maybe just gently file those leading edge barbs but that damage does not seem too bad to me.New bearings and jet pump with plastic liner. Liners has very little scratches. When I spin the impeller in it the gaps vary
Not sure this is model specific, but the gap is .35mm - .45mmWhat are the specs for the gap?
Don't switch the impellers as they are side specific. Whereas you are touching the liner on one side and have .05 clearance on the other, along with the whine you reported, I'm thinking bearings.I'll switch the jet pumps and see if the cavitation switches sides
I would say: if one can remove the liner without actually cutting it out (or chiseling it out) - that is not a good liner! - and probably should not even be there in the first place as it may spin (as @Tom V pointed out in the other thread).Try removing the liner from the pump that is giving you issues and reverse it so the scars are on the opposite edge away from the impeller, I believe you can reverse those and use them twice. if it fixes the issue for a while it will let you know that was the problem.