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Thread: WEIRD noise!
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08-01-2007, 03:18 AM #1
WEIRD noise!
Help you guys.Just as our Limey weather gets better,my ski gets worse!I'd been out jumping waves for about an hour last night when I lost all drive,and heard a weird whining noise from the rear bearing/pump area.I found the remains of a plastic carrier bag around the rear of the ski,so I guess this was shredded by the pump.I cleared this but still had no drive,and no water out the jet.When the engine starts (without any revving),it almost sounds like a starter bendix spinning free then the noise drops away.When I rev the engine (which is running perfectly) the grating/whining sound comes in stronger.I put a long driver into the pump nozzle and found that the impellor rotates freely (engine off, of course!), so I guess the drive has broken somewhere.Do I pull out the entire pump unit,or look somewhere else first?What would be the likely thing to allow the impellor to turn without the engine? Thank's in advance of your help.DaveW.
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08-01-2007, 05:51 AM #2
You should check the coupler if thats ok, Pull the pump!!
Last edited by GPHOTROD; 08-01-2007 at 05:54 AM.
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08-01-2007, 08:14 AM #3
Check the splines on your driveshaft.
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08-01-2007, 08:20 AM #4
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08-01-2007, 08:45 AM #5
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08-01-2007, 08:50 AM #6
hope its ok to ask on a thread thats not mine.....
the drive shaft pushes into the back of the coupler....right...
can the splines on shaft be ok but the coupler stripped/stripping,so it all looks good from pulling the prop shaft but problem left unoticed in ski in the intermediate shaft
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08-01-2007, 08:53 AM #7
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08-01-2007, 08:54 AM #8
Paul, you are correct. The drive shaft can be stripped or the intermediate shaft can be stripped.
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08-01-2007, 08:58 AM #9
this could be deans problem....
feels like cavitation (bad) slipping....if you feed the power in slow you can get a bit more out of it but WOT forget it it slips/spins big time..
shame he has given up on it and dumped it down farm unlocked and uncovered...
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08-01-2007, 09:25 AM #10
most likely the splines on the intermediate shaft are stripped.
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