Reply To: Howard 350 petrol cock stuck on.

[sidevalve5]

If originality or you get the understandable satisfaction from doing a repair to the existing tap. Then you can carry on doing it with the care you have taken to date.

Personally I would replace it even it just to save the time and the trouble of fixing the old one. I am more interested in functionality that originality. Expect the thread into the tank would be BSP, it likely to be either 1/8” having a 0.383” diameter and 28 TPI. Or 1/4” with 0.518” diameter and 19 TPI. The fuel pipe is most probably 1/4” bore. Would fit a small in line filter too. There are loads of different petrol taps that would fit. Again personally would not fit an Ewarts cork one from choice. Find they often leak. But have replaced the cork with some O rings and that seems to offer a good seal.