What size/type is the thread in the bottom of the petrol tank for the petrol tap go into?

I need to clean my threads and want to run a tap through them.

Secondly, I need some fuel taps, where to go to buy some?



Original part no. 17907

Cheers

Al

We have those as in your picture Alun,
Sorry no picture yet, but soon.

Mark

https://pesltd.uk/?ptno=73066N

email (option): pes.sales@btconnect.com

Alun the tread size both ends would normally be 1/4 BSP. Ron

email (option): ronpier@talk21.com

Thanks

I'll double check what holw size is on the tank and order some new petrol taps. The ones I ordered before are the wrong size (too large).

I know you said 1/4BSP both sides, I've found those available, as well as 1/8BSP in with a 1/4BSP out.

What fuel tank would use 1/8BSP?

Cheers

Al

The BSA WM20's were originally fitted with taps that had an 1/8 bsp thread both ends. Lots have been converted over to 1/4 x 1/4 now though.

For reference, a 1/4 BSP thread has an actual outside diameter of 1/2".... 1/8 BSP is 3/8"

Ron

email (option): ronpier@talk21.com

Hi there Alun

R.e. WD G3L petrol tank taps. Just measured the taps on my WD G3L & the inlet (Filter end) is 1/8 BSP While the outlet thread is 1/4 BSP.

Chris Moore

email (option): millspray@yahoo.com