SoCal Jet Boats
Tech Talk => Jet Pumps => Topic started by: Sin City Spectra on October 13, 2011, 10:20:31 PM
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:banghead: OK, so i took the Spectra out weekend before last and it was running its usual slow, slipping high RPM's due to a very worn wear ring (I'm guessing). it runs about 35 at 4200 RPM, the motor is old, stock to be honest, im affraid to push it too much past that at this point. So the family and i find a nice cove, dump our crap off, do a lil swimming and when we get back in the boat, it runs fine, but will not get on plane, and the motor started getting hot so its obviously NOT pumping water. we got towed back in, what a pain that was... i threw it on the trailer and took it home. over the weekend i pulled it apart, half expecting to find the wear ring GONE but it was intact. Worn, but intact. so i have the WJ broke down to nothing and i guess i just wanna know will a wear ring fix my issues? I know the WJ isnt the best and i am ok with that at this point but does the symptom of working normal, then nothing make any sense? it was pumping some, so when i said none, it was not accurate. not enough to keep it cool, and barely enough to make it move. when i took it apart, i didnt find any foreign matter like rope, or plastic so i am stumped! Help???
:beer: :beer: :beer:
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Wow at first it sounded like a cavetated pump but you say you found nothing in it. It doesnt take much, a couple 3/4" stones will do it..or even one. Other than that I'd say your pump is toast.
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Sounds just like a rock in the intake side of the impellar.
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This is the back of my WJ. It accepts standard Berk type nozzles.
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:banghead: OK, so i took the Spectra out weekend before last and it was running its usual slow, slipping high RPM's due to a very worn wear ring (I'm guessing). it runs about 35 at 4200 RPM, the motor is old, stock to be honest, im affraid to push it too much past that at this point. So the family and i find a nice cove, dump our crap off, do a lil swimming and when we get back in the boat, it runs fine, but will not get on plane, and the motor started getting hot so its obviously NOT pumping water. we got towed back in, what a pain that was... i threw it on the trailer and took it home. over the weekend i pulled it apart, half expecting to find the wear ring GONE but it was intact. Worn, but intact. so i have the WJ broke down to nothing and i guess i just wanna know will a wear ring fix my issues? I know the WJ isnt the best and i am ok with that at this point but does the symptom of working normal, then nothing make any sense? it was pumping some, so when i said none, it was not accurate. not enough to keep it cool, and barely enough to make it move. when i took it apart, i didnt find any foreign matter like rope, or plastic so i am stumped! Help???
:beer: :beer: :beer:
Not withstanding something stuck on the backside of the impeller (where you cant see it) , the possibilities are , #1 whatever it "picked up" which potentially caused the problem maybe fell out when you "trailered" the boat, (this happens alot) or #2 that the jet needs internal repairs , Impeller or wear ring, the WJ uses a plastic wear ring and they do deteriorate and fail , let us know if you need disassembly help or repair parts Tom