Author Topic: petrol pipe  (Read 268 times)

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Offline Lilyloodles

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petrol pipe
« on: January 02, 2019, 08:54:33 am »
Was bidding on this original (or what looks like to me) petrol pipe setup for C10/C11, but when it got to £72 I realised that it was way out of my price range. Does anyone make these? I know members have explained before how to go about forming one from scratch, but my limited mechanical skill may not be up to standard!

By the way...HAPPY NEW YEAR EVERYONE....Tony

Online Tman

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Re: petrol pipe
« Reply #1 on: January 02, 2019, 09:32:10 am »
Does anyone make these? I thought everyone did! A length of copper pipe off Ebay, two appropriate unions from Drags or whoever, and ten minutes in the workshop. If they're making 72 quid then it's time to go into business making them!

Online hampshirebiker

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Re: petrol pipe
« Reply #2 on: January 02, 2019, 10:09:44 am »
Certainly on one of the copper petrol pipes I played with the unions were silver soldered; which is not necessarily a DIY job. I don't know if soft solder is liable to cracking.
Tony, I've got plenty of 6mm soft copper. Pm my your address and I'll post you some.
Dave.
Postal - Liphook Hants - But just into West Sussex.

Online griff

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Re: petrol pipe
« Reply #3 on: January 02, 2019, 01:58:56 pm »
 No need to silver solder as you can form te ends with a special tool ,( Put the nuts on first and facing the rifgr way) the one that does brake pipes....    :D   Griff
Ride safely and no pinchmarks on the seat.
 Feet-up, only on trials sections...

Offline timsdad

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Re: petrol pipe
« Reply #4 on: January 02, 2019, 03:16:01 pm »
I've got a decent brake pipe flaring kit and I didn't have too much success in forming male ends on my fuel pipe. I also tried with compression olives but these were too long to sit inside the nuts so, in the end, I had to cut a couple of olives down to size, to make cones out of them, and made mine like that.

It's been off and on many times and is still fine after several years. I probably made it from Kunifer brake pipe and formed it by wrapping around a round thing in the vice - probably a very large 1" drive socket because I've got lots of them and they're nice, solid and chunky.

Worked for me!

Ray
Just a motorcyclist.

Online chaterlea25

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Re: petrol pipe
« Reply #5 on: January 02, 2019, 03:41:21 pm »
Hi All
£72 :o :o :o

Carrots motorcycles sell those brass
end fittings, and lots of other handy fittings
Some of the petrol taps have an
odd thread that's between 1/8 and 1/4 BSP
I went looking for them at Stafford but carrots were not there in  April

John

Online Tman

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Re: petrol pipe
« Reply #6 on: January 02, 2019, 03:56:54 pm »
Here you go, GSP-

https://www.gsparkplug.com/fuel/fuel-pipes-hoses-connectors/fuel-pipe-fittings-imperial?p=1

Union £1.50, nut, £1.50, 1m of malleable copper pipe £3.50, so make your own for about a tenner + post.

Offline RayC10

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Re: petrol pipe
« Reply #7 on: January 02, 2019, 05:54:39 pm »
Soft solder is fine for this
Ray

C10L 1954 at Heacham, Norfick.

Online hampshirebiker

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Re: petrol pipe
« Reply #8 on: January 02, 2019, 06:04:30 pm »
Thanks Ray, I just wondered as one I tried to unsolder once wouldn't budge with any amount of heat.
Postal - Liphook Hants - But just into West Sussex.

Offline ThomasC11

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Re: petrol pipe
« Reply #9 on: January 02, 2019, 06:53:38 pm »
I believe Ray is right. I solf soldered the plug of my oil feeding pipe. It is doing fine.
Cheers, Thomas
1946 BSA C11
1937 Sunbeam Model 9
... and a dented Opel

Online Tman

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Re: petrol pipe
« Reply #10 on: January 02, 2019, 09:05:29 pm »
Thanks Ray, I just wondered as one I tried to unsolder once wouldn't budge with any amount of heat.

I tried to dismantle an RE factory one recently and it wouldn't budge even with a butane torch, so clearly that one was silver-soldered, but I've always just used run-of-the-mill solder on these fittings and it's fine.

Online Owen

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Re: petrol pipe
« Reply #11 on: January 02, 2019, 10:04:50 pm »
Technically it's not silver soldering it's brazing as it's melting point is over 427°C
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Online hampshirebiker

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Re: petrol pipe
« Reply #12 on: January 03, 2019, 08:00:46 am »
Owen, I know the difference between brazing and silver soldering. The colour for one and I've done both over the years.
Postal - Liphook Hants - But just into West Sussex.

Offline Lilyloodles

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Re: petrol pipe
« Reply #13 on: January 03, 2019, 06:52:29 pm »
Much thanks Dave for the offer of the copper pipe, but on reflection I reckon TMan's little shopping list will be the best option. Does the pipe actually have to have to twrirls in it or will a simple down pipe from tap with one bend upwards to carb suffice?
I know the C10/C11's always seem to have the pretty pipe as I've shown above, but was this shape for show only and not for actual nessessity?

thanks as always
Tony

Offline ianinglis

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Re: petrol pipe
« Reply #14 on: January 03, 2019, 06:55:42 pm »
its all to do with vibration tony - the coils act like a spring and dampen out any pipe cracking vibrations



ian
BSA C10L 1956 - JFO 588
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