Author Topic: Ewart cork replacement in viton  (Read 881 times)

Online Billybream

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Ewart cork replacement in viton
« on: 23.03. 2022 05:19 »
Has anybody replaced cork with rubber seal, spotted US kit with 4 viton O Rings, is this a solution for latest fuel types.
1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Online Angus

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Re: Ewart cork replacement in viton
« Reply #1 on: 23.03. 2022 11:06 »
Hi Billy

I have tried the 4 vitron O ring kit. It seals but the tap is very stiff. I had hoped it would loosen with use but so far it has not. My next attempt will be to try Draganfly's alternative https://draganfly.co.uk/shop/83840/petrol-tap-cork-plunger-in-neoprene-ethanol-proof/#PA-34
1961 A7 since 1976, 1960 A10 Gold Flash Super Profile Bike
1958 Matchless G80 Project, 1952 Norton Model 7 Plunger
1950 Triumph T100, 1981 Ducati Pantah 500, 1959 AJS model 20

Online JulianS

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Re: Ewart cork replacement in viton
« Reply #2 on: 23.03. 2022 14:33 »
I tried the multi o ring item. I found in use that the o rings tended to tear on the outlet drilling in the tap body seemed like it expanded slightly and caught when operated. I thought I had wasted my money on that.

I also tries the neoprene cork replacement, I found these to be very stiff, quite hard to operate and opted for a lever tap instead.

Online Ted_Flash

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Re: Ewart cork replacement in viton
« Reply #3 on: 23.03. 2022 15:26 »
Cork should have no problem with ethanol, it's been used for centuries to stopper wine bottles.  My cork push pull taps seem to last a very long time without leaking.
Ted Wilkinson, Ramsbottom, Lancashire
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Online Billybream

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Re: Ewart cork replacement in viton
« Reply #4 on: 23.03. 2022 15:33 »
Think I will stick with cork, thanks for your feedback
1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Online Triton Thrasher

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Re: Ewart cork replacement in viton
« Reply #5 on: 23.03. 2022 18:26 »
Cork should have no problem with ethanol, it's been used for centuries to stopper wine bottles.

Some of that wine is E14!