Fuel change over valve thread?

[Tom Millward]

I’m looking for the BSP adapters that fit in the early Mk1* Carrier fuel change over valve. Can anyone tell me the thread type in the valve? Is it a BSP to BSP adapter, or is the thread in the valve UNF? I’m finding it quite difficult to find the correct style of adapter.

Cheers.

[charlie fitton]

All I can find in the parts manual is that the adapter (CTL3485B) is interchangeable with NA/AG3233
Ford USA part number is GAE 9279

[Tom Millward]

Thanks Charlie, any idea where I can find the ford part number. I tried googling it but all that came up was this post.

[Dave Schindel]

I think the part # Charlie gave you is for the adaptor at the fuel pump. The adaptor that I believe he is asking about is a C31UCW-104142 at the fuel selector valve.I am looking for these as well and am having no luck.From manual UC0M1.
Cheers,Dave

[Tom Millward]

Hi Dave, after picking the brains of a few Carrier gurus, we’ve worked out that the change over valve adapters for my valve are taper thread bsp in the valve and straight thread bsp to the fuel line. 1/2” bsp both sides I think. These can be found on line fairly easily.

[Dave Schindel]

Thanks Tom. I will do some checking . May not be as readily available this side of the pond.

[Ron Pier]

Originally Posted by Tom Millward

Hi Dave, after picking the brains of a few Carrier gurus, we’ve worked out that the change over valve adapters for my valve are taper thread bsp in the valve and straight thread bsp to the fuel line. 1/2” bsp both sides I think. These can be found on line fairly easily.

I think it's 1/4 BSP Tom, although the outside diameter of the thread is about 1/2". BSP is a strange system based on the inside diameter of the pipe. Ron