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  1. #1

    Anyone make their own "pump seal kit"

    I was looking at Riva pump seal kit and I see that it is just a bunch of silicone blocks. I was wondering if anyone had a home remedy for something simple and just put it in the voids?


  2. #2
    MR-1 X 2's Avatar
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    Some people have used a kit purchased at places like Hobby Lobby. Did a search for DIY PPK and found this.

    http://www.greenhulk.net/forums/show...ht=Hobby+Lobby

    Scott

  3. #3
    Guidoo's Avatar
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    I made some for my ol VX Deluxe out of hard foam. Took some work to carve out and lasted two years. Thought about using Great Stuff expanding foam,let cure then trim. Probably make more of a mess then worth.

  4. #4

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    The Hobby Lobby casting/molding stuff works great and is easy to use. I wouldn't do it any other way, its kinda like casting your own kit except they actually fit without trimming.

  5. #5
    Orange FZS's Avatar
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    ive made them before just fill the cavitys with silicon and use a business card to smooth it all off.

  6. #6
    improvised tmg97gp's Avatar
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    I used bondo.

  7. #7
    slvrsnypr's Avatar
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  8. #8
    Guidoo's Avatar
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    I just filled the cavities on my R&D FZS grate with Great Stuff foam. I shoot a little in each cavity at a time. Filling each about 3/4 way up, prop'd up to cure over night. Trimmed off the over flow and then sealed over with silicone. I'll do the shoe tonight. I fugured it this way, the foam is lighter then the resin or body filler and every pound slows it down.

  9. #9
    zone5's Avatar
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    I haven't wanted to do a full pump seal as I don't want to be bothered with tunnel reinforcement, which many here consider must go hand in hand. I did however use a quality silicon that I have used before in nautical situations to fill the gap at the leading edge of the OEM intake grate (between it and hull), and also to fill the two front bolt holes... Nothing done aft of those two front bolts.

    It certainly has helped with reducing holeshot cavitation, I guess by reducing turbulence in the flow that runs along the top of the tunnel. good enough for me to be unfussed about going further....

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