Hi Can anyone confirm if the petrol tap T28/2/B that is listed on the spares company website will fit on a 1939 Comet? There is no detail of thread size etc. on the website, and the lady at the spares company wasn't sure either?
Petrol Tap T28/2/B
- Thread starter John Oakes
- Start date
Pre war bikes had 1/8" BSP fuel tap threads into the fuel tank and post war were 1/4"BSP thread in the tanks. As the VOC spares main concentration is the post war bikes I would guess what they sell wouldn't fit series A.
Simon
Simon
HI Simon. Thanks - if it is 1/8" into the tank is it 1/4" into the fuel line?
Yes.
I the brass taper type on my A Comet from a different supplier who provided the correct 1/8"BSP thread and I found the modern fuel doesn't lubricate as well and they seized on the taper. Yes they can be dismantled and lapped back in with polish but it lasts for only a while. There is a special grease you can use on them but I wanted to avoid the potential hassle of draining the tank etc to keep maintaining them so I went to a push / pull type which have not been a problem and available with 1/8" BSP thread for the tank and also ethanol proof Teflon seals.
Carburation/Fuel :: Fuel Taps and Parts :: 1/8" Taps :: 1/8" x 1/4" Push-off Pull-on Fuel Tap with Nut, Spigot and Filter - Nickel Plated
1/8" x 1/4" Push-off Pull-on Fuel Tap with Nut, Spigot and Filter - Nickel Plated Motorcycle Petrol Tap
www.feked.com
Also available in chrome
Carburation/Fuel :: Fuel Taps and Parts :: 1/8" Taps :: 1/8" x 1/4" Push-off Pull-on Fuel Tap with Nut, Spigot & Filter - Chrome - UK Made
1/8" x 1/4" Push-off Pull-on Fuel Tap with Nut, Spigot and Filter - Chrome. Premium quality chrome plated slide type fuel tap, with filter gauze. Two Position Push-off, Pull-on Slide Type Lever. Made in England
www.feked.com
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Brilliant thanks for your help - ill get the nickel one ordered asap
Something like this might fit the bill.
www.feked.com
Carburation/Fuel :: Fuel Taps and Parts :: 1/8" Taps :: 1/8" x 1/4" Round Lever Brass Fuel Tap with Filter
1/8inch x 1/4inch Round Lever Brass Fuel Tap with Filter. Tank end Thread diameter 3/8inch. Outlet end Thread diameter 1/2inch. 3/16inch outlet id.
www.feked.com
That is the type which I have had seize on the brass taper. I don't know if its the grade of brass or the ethanol in the petrol or something else .Something like this might fit the bill.
Carburation/Fuel :: Fuel Taps and Parts :: 1/8" Taps :: 1/8" x 1/4" Round Lever Brass Fuel Tap with Filter
1/8inch x 1/4inch Round Lever Brass Fuel Tap with Filter. Tank end Thread diameter 3/8inch. Outlet end Thread diameter 1/2inch. 3/16inch outlet id.
I have used the following before, but you have to be careful not to turn the lever the wrong way as it is very easy to break the stop for the lever. They do feel nice in operation though.
Carburation/Fuel :: Fuel Taps and Parts :: 1/8" Taps :: 1/8" x 1/4" Round Lever Large Bore Fuel Tap with Filter - Nickel Plate
1/8inch x 1/4inch round nickle plate lever large bore fuel tap with filter. Tank inlet 5/16inch id. Tap outlet 3/16inch id. Thread diameter 1/2inch.
www.feked.com
All sorted - i bought the nickel plated push pull ones form Feked.com They fitted spot on and work a treat - Thanks John