Throttle linkage

[LMH]

Without actually checking it, I'm not sure but I think the PCV thread is 1/4" NPT. NPT is a 60 degree thread while BSP is 55 degree. It might thread in but it won't seal very well.
If I have to make the elbow, I could thread it with British thread but I only have four BS taps and none are pipe. I have an NPT pipe tap in 1/4".
Larry

[rsk289]

I've just checked out a C7ZE PCV I have, and it is indeed 1/4 NPT (18tpi). So the requirement is for a brass elbow to thread on to the top of the PCV (1/4 NPT), with a hose barb for 1/2" ID hose.
I have found some NOS brass 90° elbows of the correct shape on ebay, which have the 1/2" hose barb with a single lip, but have 1/4 NPT male thread. I am going to cut off the thread, then drill and tap for 1/4 NPTF. I will post a picture once done - but it may be a while as ebay's ridiculous global shipping centre was requiring me to pay $370 to ship 4 brass elbows! I've had to get them shipped to a friend in the US who will post them on to me.

All good fun,

Roger

BTW, BSP is British Standard Pipe thread - I can't see Ford using that back in the sixties. It's surprising what weird older threads do come up, though - did you know that every camera tripod mount screw, old and new, is 1/4 Whitworth (BSF)? How on earth did that happen?

[FatBoy]

Roger,

Are you sure it is 1/2" pipe you need?

Assuming the elbow pipe is 1/2" OD, you could easily sleeve it to take 3/8" ID hose, which would allow you to use the brass fitting that I have, which already has the 1/4" NPT thread on one end.

Paul

[rsk289]

Originally Posted by FatBoy

Roger,

Are you sure it is 1/2" pipe you need?

Assuming the elbow pipe is 1/2" OD, you could easily sleeve it to take 3/8" ID hose, which would allow you to use the brass fitting that I have, which already has the 1/4" NPT thread on one end.

Paul

Paul, thanks, but it needs to be 1/4 NPTF not NPTM. I have a solution in hand!