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Leaking Fuel tap
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welshbiker
Penmaenmawr North Wales
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November 23, 2019 - 6:57 pm
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Hey all

After an engine rebuild over the past several month and putting everything back together I have small issue. The fuel tap hast started leaking also not stopping fuel completely. 

I have tried the boiling water and steaming trick but still not working, I've decided to put a new fuel tap in but I have come across these on fle bay. Look a lot simpler than trying to replace the cork tip. 

My issue with these is the cork is wider than the stem (obvious as it's new) would I need to shave some of the cork or just fit tap as is?

Thanks

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Mick W
North Wales
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November 23, 2019 - 7:13 pm
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Hi Welsh Biker.

Fit the cork as is. If you try shaving it you will never get a seal

Mick

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Stoo63
GLASGOW
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November 23, 2019 - 7:14 pm
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Repacing the cork itself is simple and effective. You may prefer to use these plungers you've found. They will all require slight "fitting"

Loads of threads here

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'52 D1 direct lighting plunger, '58 Square Four (project), '59 D1 direct lighting plunger,  '59 Tiger Cub, '60 5TA,  '76 FS1-E

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chickensoup
Bolton, Greater Manchester
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November 23, 2019 - 7:19 pm
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Hi,

I am told the trick is soak the cork in petrol over night. I take it you have an Ewarts fuel tap, with the correct cork. The problem with the newer fuel taps is the thread size, ie where the tap screws into the petrol tank.

Any way if you do find a new type fuel tap, please let us all know.

Good luck with your quest.....Nick

1950 BSA D1 Plunger   242 UYW

1966 BSA D7  LBF 62 D

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cocorico
Central France
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November 23, 2019 - 9:06 pm
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It's all covered in FAQs

1956 D3 running, lights to sort. 7 other bikes in the Barn. 1950 D1 engine being rebuilt (slowly).

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Mick W
North Wales
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November 23, 2019 - 10:20 pm
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cocorico said
It's all covered in FAQs  

Welshbikers question is about a replacement plunger, available from ebay, not cork replacement. In FAQ the cork replacement is again spoilt by photobucket.   ** Please log in to view **   If anybody is doing a cork replacement a write up with photos would be appreciated to add to the FAQ section. Unless Piquet has the photos to clean up that item.

Mick

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Stoo63
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November 23, 2019 - 10:42 pm
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Endless discussion and videos here on the subject of corks. The videos may also contain the plunger replacements. Soap sounds an interesting  possibility....

'52 D1 direct lighting plunger, '58 Square Four (project), '59 D1 direct lighting plunger,  '59 Tiger Cub, '60 5TA,  '76 FS1-E

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Piquet
West Norfolk
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November 24, 2019 - 1:07 am
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Mick W said

............Unless Piquet has the photos to clean up that item.

Mick  

As if by magic..........

laugh

I'm not a complete idiot ............................................ some parts are missing.

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cocorico
Central France
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November 24, 2019 - 8:10 am
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Mick W said

... a replacement plunger, available from ebay, not cork replacement...

Sorry. The plunger on ebay (and hence the cork) look to be the same as fitted to the Ewarts tap. Certainly looks like the one on my D3. It would also require the same sort of treatment before fitting to the tap as a replacement cork would.

1956 D3 running, lights to sort. 7 other bikes in the Barn. 1950 D1 engine being rebuilt (slowly).

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