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  1. #1

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    Jun 2011
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    Will repitching my impeller myself help with hole shot??

    So money has been tight lately and i was going to send my prop off to be repitched but now i'm thinking of doing it myself. I have a 01 gpr with an 06 engine slightly modified. I have bad prop spin and cavitation off the line until about 10 mph. The prop is a concord 13/19. I was going to have it repitched to a 14/20. Can i do this myself? If i can will it help the prop spin?? Also if i can do it myself anyone have a good DIY Thread??


  2. #2
    Quote Originally Posted by Monster Machine View Post
    So money has been tight lately and i was going to send my prop off to be repitched but now i'm thinking of doing it myself. I have a 01 gpr with an 06 engine slightly modified. I have bad prop spin and cavitation off the line until about 10 mph. The prop is a concord 13/19. I was going to have it repitched to a 14/20. Can i do this myself? If i can will it help the prop spin?? Also if i can do it myself anyone have a good DIY Thread??
    It can be done yourself. You need an impeller gauge (or the curves on a transparency), something to tighten the impeller on to and a large crescent. It's not easy and fairly difficult to get exactly right.

    Impros has all the tools to do it correctly.

  3. #3
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by Jay View Post
    It can be done yourself. You need an impeller gauge (or the curves on a transparency), something to tighten the impeller on to and a large crescent. It's not easy and fairly difficult to get exactly right.

    Impros has all the tools to do it correctly.
    Jay has good points, but if you are cavitating, you may have a wear ring issue, or need to seal the pump shoe

  4. #4

    Join Date
    Jun 2011
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    asheville, nc
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    I have checked the wear ring clearance and it is good I have also done the PPK. My question is more will bending the prop myself help at all or should i just wait until i have the funds to have Impros do it. Also just in case it helps: with a tiny tach i'm running 7450 rpm with this prop. Not sure what the gps is as i keep forgetting it at home. lol

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