Author Topic: !950 b31 petrol tank  (Read 458 times)

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DEDGE

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!950 b31 petrol tank
« on: 12 January, 2018, 15:33:23 »
Hi Guys
I need some advice about the petrol tank that come on my bike ,the frame is a 1949 plunger. Is it the right tank if it isnít what is the difference.  As I am trying to fit a solo saddle I thought I had better check that the tank is ok size wise and shape etc.
All The best
Dedge

Bles31

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Re: !950 b31 petrol tank
« Reply #1 on: 14 January, 2018, 18:18:11 »
This is the tank on my 1952 plunger B31.

Bles31

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Re: !950 b31 petrol tank
« Reply #2 on: 15 January, 2018, 21:42:07 »
There are a few different part numbers in mu BSA Parts Llist (for 1949 - 1952 B31's, Gold Stars and others). I attach the information - but find it hard to be sure which tank is used on which bike - rigid, plunger or Gold Star.

Bles31

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Re: !950 b31 petrol tank
« Reply #3 on: 15 January, 2018, 22:11:35 »
From another section of the parts list. Hope this is of some use.

JulianS

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Re: !950 b31 petrol tank
« Reply #4 on: 15 January, 2018, 22:29:45 »
These photos are from the parts book issued in 1949 and may assist.

DEDGE

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Re: !950 b31 petrol tank
« Reply #5 on: 16 January, 2018, 21:15:01 »
Hi Guys
Thanks for all the info. My tank has the small oblong BSA badge with wing. Underneath at the front there is a link pipe connecting the two sides of the tank. According to Julianís parts book this link pipe was only fitted on the M series part No 66-8285, my sprung 31 should have tank part No           65-8161.
Does anyone know what the physical difference is between the two tanks. The reason I ask is that the tank needs re chroming and repainting if spend the money on this tank will it look right or should I look for the right tank

Dedge