Freestyle Terrible vibration

JRock637

JRock637

Location
Annapolis, MD
brylon644 said:
I'm having the same issue with my carbon brawler as the rest of you. I have even gone so far as to pretty much buy everything new last winter and rebuild the ski. Still doing the same thing. Only things that aren't new are my motor mounts, carbs and my pump(rebuilt last winter though). Can it be just these thin hulls flexing?
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Mines doing it an it's a thicker hull. The thin hulls no doubt I imagine vibrate but it's probably not this sorta vibration. It sounds like a hammer drill a few rooms over in a building.
 
SmittySX

SmittySX

Location
Cleveland, Ohio
Well, did and engine swap and im having the exact same vibration issue. Im about done with this damn thing.

Engine is now a 760cc, oem crank, and i used different carbs. Also put the new OEM couch mounts back in.

Ive ruled it down to my midshaft ( i dont think thats it) or my new pump.
 
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SmittySX

SmittySX

Location
Cleveland, Ohio
Pulled the pump. Started it. NO VIBRATION... So, its my pump, but what the hell is wrong with it? Brand new everything built by the Maniac. OEM 155 pump, superjet driveshaft, with a B2 wear ring.. It looks like the replaceable plastic in the wear ring has been chewed up a little from the leading edges of my prop. SO if the prop rubs on the plastic enough it may be causing this vibration instead of a normal wear ring where it would just grind and wear itself in...?
 
Glen

Glen

Location
canada
Had a bent driveshaft do this a couple years ago you will think the pump is alighned properly but its actually not.
 
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