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Fuel tap adaptors
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lbayorkie
Otley, West Yorkshire
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March 29, 2020 - 7:07 pm
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In my box of bits Ive got an Enots fuel tap- see image (which is upside down) I would like to make use of this as its more original than the one fitted on my bike. Top fitting is 3/8 but the tank tapping is 5/8 so I could do with an adaptor but I would want a filter. The bottom fitting is designed for a plastic fuel pipe, which is ok for time being but ultimately I would like a fitting to enable me to fit a copper pipe.

Ive found some adaptors on the internet but not for a 5/8 tank tapping. Does anyone know if such an adaptor exists?

Thanks20200329_125420.jpg

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toppo46
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March 29, 2020 - 9:24 pm
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Evening when we are allowed out and about again try a plumbers merchant like pts I changed the tap on a d7 a bit ago and they fitted me up with a brass adapter and was a lot cheaper than from a parts supplier. On another note I see your in otley we are usually at pool bank farm with caravan catching up with our daughter who lives in Bradford this week but due to the restrictions I’m afraid to say it’s been spent in the workshop lol

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lbayorkie
Otley, West Yorkshire
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March 29, 2020 - 10:04 pm
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Thanks for betting back to me.  Its a good location for a caravan site, views across wharfedale must be good. Maybe we can meet up in the future. Hopefully the Dyneley Arms will be open by then too. 

I am surprised that there arent any adaptors from the usual parts suppliers as I know this model of tap was used on D1s so they must have had them on bikes as they came out of the factory. 

The drawback with a plumbers merchant is it wont come with a gauze filter, and I really need one.

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Blue Heeler
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March 29, 2020 - 11:13 pm
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I`ve seen the gauzes sold loose. Find some brass tube that`ll press into your reducer, solder gauze to that.

Or if you want to go down the nylon route, then something like this pressed onto your brass or whatever stub... ** Please log in to view **

 

BSP any good, I`m guessing nah, far too course, but photos are blown up and can be deceptive....** Please log in to view **

Do you own a thread gauge Alan...no idea where mine`s gone. If you can give me the tpi, I may be able to find you something. Or wait until I find my tin of petrol taps, which has both those sizes in, to measure up.

You wouldn`t believe I obtained certificates in hydraulics during my 4 1/2 yrs ag-mech days( The late David Brown Tractors at Meltham, Huddersfield, mid `70s)...I should be able to find you exactly what you need...

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toppo46
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March 30, 2020 - 5:41 pm
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Yes it is a fantastic view from up there and yes would like to meet up when we eventually make it back up there. 

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Unitminor
Norfolk
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March 30, 2020 - 7:04 pm
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At guess I would say if it a d7 or earlier your tank is 3/8 bsp and tap looks like it is 1/8 bsp reduces for that are common. 

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Blue Heeler
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March 30, 2020 - 8:38 pm
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Unitminor said
At guess I would say if it a d7 or earlier your tank is 3/8 bsp and tap looks like it is 1/8 bsp reduces for that are common.   

Spot-on I reckon! Here we are Alan...just remembered one of my favourite suppliers, I`ve given them a shout-out on here before, they`ve got so many little goodies handy for all Bantams....** Please log in to view **

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lbayorkie
Otley, West Yorkshire
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March 30, 2020 - 9:42 pm
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Thanks Sunny & Blue.

I measured the inside diameter of the tank outlet with a micrometer again and also the o/d of the tap which was fitted to it, both were 16.5mm (normally this would be 5/8")

However...I have been doing some research. I turns out that 3/8" in bsp equates to 16.66mm. I have no idea how this can be, but it solves the problem I think

The web site looks really good and I have added it to my favourites. 

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lbayorkie
Otley, West Yorkshire
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March 30, 2020 - 10:12 pm
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Part no 27-8436 is what I need. Draganfly do them and they come with a filter. 

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Blue Heeler
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March 30, 2020 - 11:03 pm
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lbayorkie said
 "...turns out that 3/8" in bsp equates to 16.66mm. I have no idea how this can be..."

These old sizes are intriguing, the BSW(British Standard Whitworth) double open-ender I use for the top fork nuts on my D3 is 7/8" - 1" W. The size generally refers to the internal thread dia of the nut or bolt shank, not the across flats size of the nut or bolt head.

If I have that wrong, somebody just transport me back to Joseph Whitworth`s era, I`ll take the risk with the lurgies back then 🙂

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mike p5xbx
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March 30, 2020 - 11:59 pm
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Its all very confusing ;(
as the BS sizes are the stud size not the head size and the BSF head size is one step smaller than BSW so a 1/4" BSW bolt has the same head as a BSF 5/16" bolt,
and with BSP (pipe/gas) fittings it is the internal size of the fitting not the head or thread size

D? - D10- D14 Bantams 350 AJS -500 Triumph http://bsanotru.....lfire.com/

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cocorico
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March 31, 2020 - 8:11 am
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Praise be for adjustables. bow get-me-coat

1956 D3 running, lights to sort. 7 other bikes in the Barn. 1950 D1 engine now running.

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Unitminor
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March 31, 2020 - 12:57 pm
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Bsp sizes can be confusing 1/8 is around 3/8 and so it goes on hope that helps Brian

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lbayorkie
Otley, West Yorkshire
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March 31, 2020 - 12:59 pm
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Thanks, Ive got a conversion table now. What threw me is how much the difference between the tape measure and BSP can be. I just didnt expect for example 1/8 in BSP to be 3/8 when measure with a tape measure.

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mcafee
Malton North Yorkshire
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April 1, 2020 - 11:39 am
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711B90A5-3B10-4C5F-B45C-858C54F0ECC6.jpegHi being a Yorkshire man I was appauled at the price of fuel taps and my solution was to tap out the tank to 1/4 bsp and fit a Royal Enfield tap from India at a cost of £9 delivered.The tap is lockable , has a reserve position and a filter.I realise that this is non standard but my B175 has been made into a greenlaner and is used as such.

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lbayorkie
Otley, West Yorkshire
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April 1, 2020 - 12:36 pm
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Thanks, a key is a novel idea!

I had my D1 frame straightened in Malton in November. 

 

Alan

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Blue Heeler
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April 1, 2020 - 11:02 pm
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Haha, how cool is that!

Yorshireman and a Scottish moniker 🙂

Is that a 9 or a 0 , your final key number....just thinking ahead for when all our fuel supplies are shut down. Hello, is that India, can you please send me key number **** 😉

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mcafee
Malton North Yorkshire
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April 2, 2020 - 11:17 am
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Irish and it comes with 2 keys !!!

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Blue Heeler
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April 2, 2020 - 12:24 pm
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mcafee said
Irish and it comes with 2 keys !!!  

Whoops sorry, wrong Celtic? link. I have McCallums/McCallams? in my lineage, economic migrants from Ireland to Scotland during the 1730s.

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