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jackh
MMT Member
Joined: Sat Mar 15, 2014 12:36 pm
Posts: 43
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 Has tank cap gasket Just bought a boat and the previous owner had an aluminum fuel tank built. When I run the boat with the tank more than about half full, fuel sloshes around and a tiny bit seeps out of the cap. There is no gasket in the cap, just aluminum on aluminum threads. Any ideas on material to make my own gasket that I could get at lowes or Home Depot? The fuel is starting to eat the paint a little so I want to stop this. Thanks.
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| Thu May 22, 2014 11:01 am |
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msm8281
MMT Elite Member
Joined: Fri Oct 09, 2009 1:50 pm
Posts: 9673
Location: New Iberia, La.
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Re: Has tank cap gasket You can try Teflon tape. The only bad thing is you'll to to redo it every time. But that shit is cheap.
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| Thu May 22, 2014 11:08 am |
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Puddler45
MMT 1000 Club
Joined: Thu May 03, 2012 9:07 am
Posts: 1199
Location: Wisconsin's waters and woods
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Re: Has tank cap gasket Buna-N (black Nitrile) has good resistance to fuels. you could also go with viton but that is high end and high cost.
Im in the rubber business i make gaskets, fab parts and install conveyor belt for a living
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1744 floating a 23 MBHD Stage 2
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| Thu May 22, 2014 11:28 am |
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msm8281
MMT Elite Member
Joined: Fri Oct 09, 2009 1:50 pm
Posts: 9673
Location: New Iberia, La.
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Re: Has tank cap gasket May be get an o-ring that fits in the top of the cap.
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| Thu May 22, 2014 11:30 am |
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Zeek569
MMT Addict
Joined: Tue Oct 08, 2013 12:25 am
Posts: 668
Location: Where the mud flats are
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Re: Has tank cap gasket Get a PVC cap and the smallest drill bit you can find and drill at a angle up ward from the bottom for a vent that's how mine is and never had a prolbem
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18x48 extreme with 37 gtr
past boats
stage 2 37 gtr on 18x48 sportsman fab
Gen 3 36 prodrive on 18x48 sportsman fab
Gen 2 36 prodricr on cc 18x48 sportsman fab
07 gtr on 16x54 alweld
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| Thu May 22, 2014 11:33 am |
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Puddler45
MMT 1000 Club
Joined: Thu May 03, 2012 9:07 am
Posts: 1199
Location: Wisconsin's waters and woods
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Re: Has tank cap gasket a disc of rubber with a diameter that fits inside the cap will cover the filler opening and will squish down and out sealing it. Or with an ID that the gasket will fit over the filler x OD just bigger than the OD of the cap and thick enough that the gasket will be squeezed between the cap and tank when the cap is tightened. I can die cut them but one could use a razor knife.
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1744 floating a 23 MBHD Stage 2
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| Thu May 22, 2014 12:44 pm |
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