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#1
22-03-20, 19:32
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It was a long time ago when I did mine, but from memory it's all 1/4 BSP. Gas or Pipe threads are confusing because as already stated, the size ie 1/4" refers to the size of the pipe. The actual outside diameter of the 1/4 BSP thread is 1/2".
I had SS braided fuel hoses made up with male ends and 1/4 M&F fittings in the change over valve. Search through the Green Spark plug site for ideas. Ron 
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#2
23-03-20, 03:27
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Thanks very much . is it 1/4 inch BSP parallel or taper ? I had / have no clue of these British specific pipe / thread / sizes . The gas tank fitting threads look to me like they are parallel but i prefer to ask to be sure .
Cheers . Bob
__________________
44 GPW / 44 C-15-A Cab 13 Wireless 5 with 2K1 box X 2 / 44 U.C. No-2 MKII* / 10 Cwt Cdn Brantford Coach & Body trailer / 94 LSVW / 84 Iltis
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#3
23-03-20, 08:08
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I can't remember if the valve threads are tapered? I got my flexibles made by a local hydraulics hose firm who also supplied the fittings. If you want to make your own with push on hose and jubilee clips or crimps, these would be the simplest system.
1/4 BSP threads x 5/16" (8mm) hose. Ron
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#4
23-03-20, 09:38
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Robert, look at how the fittings seal. If there is a seat of some sort the fitting will be parallel. I have no experience with that valve but the earlier (CO1UC?) valve has special fittings that are BSP/ SAE if I recall. You need to carefully establish what the threads are. The BSP is quite course while the SAE is relatively fine. I hope that helps.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions....
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#5
24-03-20, 02:32
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Thank you Ron & Lynn . I have everything i need to order now . Very helpful advice ! Cheers .
__________________
44 GPW / 44 C-15-A Cab 13 Wireless 5 with 2K1 box X 2 / 44 U.C. No-2 MKII* / 10 Cwt Cdn Brantford Coach & Body trailer / 94 LSVW / 84 Iltis
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#6
25-03-20, 09:25
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From a ‘Brit’ hydraulics engineer, BSP is parallel thread, BSPT is taper.
On the tube we measure the OD (outside diameter) and with hose / flexi we measure the ID (inside diameter) There are a ‘few’ times we measure the ID of tube, but on modern sizes it’s the OD. As for the nut threads, yes a 1/4” tube can have a 5/16 thread, but normally they are matched. You can get BSP or METRIC in both, pre formed ends or compression olive (ferrule think you might call it in places) SAE or flared ends as pre forming the tube ends into a flared face, like brake pipe flares etc. All these are readily available over here if anyone has problems. Instead of trying your Auto stores or truck places, try the smaller, longer established hydraulic places. Hope this helps guys 
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BETTER TO BURN OUT THAN FADE AWAY.
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#7
27-03-20, 23:30
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Thanks Paul , clear as mud now. Put in an order with Green Spark Plug .... Cheers .
__________________
44 GPW / 44 C-15-A Cab 13 Wireless 5 with 2K1 box X 2 / 44 U.C. No-2 MKII* / 10 Cwt Cdn Brantford Coach & Body trailer / 94 LSVW / 84 Iltis
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