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  1. topnitroracer

    Removing galled superjet impeller

    I have a one piece skat setback pump with what is most likely an impeller galled to drive shaft. The skat impeller finally broke free, but still extremely tight and notchy when it does move. I also destroyed the skat hex impeller tool in the process. I am currently waiting on getting two...
  2. topnitroracer

    Factory Pipe Headpipe Oversized Water Screw Set Size

    Does anyone know what thread size and pitch the oversized factory pipe headpipe water screws are? Perhaps different venders have different setups. Let me know what you have. The originals are 10-32, but I need to close one off quickly while I get an oversized set. So I thought I would block it...
  3. topnitroracer

    Sekssuperjet - Attempted Superjet Purchase

    I wanted to post my experience with Sekssuperjet, so at least others can interpret it for themselves. Some may view this differently or not a big deal. I would have appreciated knowing this info. Summary – From my point of view the seller sold the ski out from under me after I was pretty darn...
  4. topnitroracer

    Visual Carbon AM Hulls - UV Degradation

    With more and more aftermarket hull manufacturers offering visual carbon fiber hull options, has anyone seen seen signs of degradation in appearance after prolonged exposure to sunlight? Usually the epoxy resin is the weak point in not being very UV stable. Some resins might purely turn...
  5. topnitroracer

    To Taper Bore or Not to Taper Bore the Reduction Nozzle - An Analytical Approach

    I posted this over on PWC today in the Kawi section, but I thought I would post it here too. Just thought I would share this information. Take it for what it is worth. The age question of whether one should taper bore or straight bore the exit of the reduction nozzle has been around for...
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