Fuel Pump Relocation

[Austin Healer]

same as

It would be really helpful to know the size of the crossover tube threads, if you don't mind finding them.

Thanks!

same as the fittings for the Fuel pump... thought Rick had these. I know the compression nuts come with the lines from Classic Tube

 

[0neoffive]

It would be really helpful to know the size of the crossover tube threads, if you don't mind finding them.

Thanks!

These comp nuts are 1/2 BSSP . The transfer nipple measures 1/2” diam and I suppose you could do the math and count the threads per inch with a good magnifier.

 

[0neoffive]

These comp nuts are 1/2 BSSP . The transfer nipple measures 1/2” diam and I suppose you could do the math and count the threads per inch with a good magnifier.

View attachment 18929

 

[IvaTiger]

View attachment 18928

BSPP

 

[KettleCarver]

Thanks guys!!

 

[Austin Healer]

14 threads per inch

 

[Theorangetiger]

These comp nuts are 1/2 BSSP . The transfer nipple measures 1/2” diam and I suppose you could do the math and count the threads per inch with a good magnifier.

What you want is a thread gauge. Pretty handy and worth the cost.

 

[IvaTiger]

What you want is a thread gauge. Pretty handy and worth the cost.

View attachment 18933

Do you know where to get a BSPP thread gauge ? They have 55 degree threads

 

[unbeam]

A good place for fittings is hoseandfittings.com. A number of BSPP fittings available. Did not search for the gauge, but it has info how to identify the correct fittings.

 

[KettleCarver]

14 threads per inch

Perfect, thanks!

 

[KettleCarver]

That is

What you want is a thread gauge. Pretty handy and worth the cost.

View attachment 18933

That is awesome! I have got to find one of those.

 

[KettleCarver]

BSPP

I went on the hose and fittings.com site and could not find BSPP. Is it BSPT, maybe?

 

[Theorangetiger]

Do you know where to get a BSPP thread gauge ? They have 55 degree threads

I do not other than trying eBay UK maybe. Regardless of the angle, this will still let you get the correct TPI.

I believe BSPT is correct.

 

[Austin Healer]

BSPP British standard parallel pipe. BPST is a tapered thread and will not work.

 

[KettleCarver]

BSPP British standard parallel pipe. BPST is a tapered thread and will not work.

Ok, got it, thanks!

 

[KettleCarver]

That connector to the crossover tube is proving to be hard to find.

 

[Austin Healer]

Call Classic Tube. 800.882.3711 They supply these fittings with their fuel line kits, they'd probably sell you just the fittings if you ask nice!

 

[KettleCarver]

Call Classic Tube. 800.882.3711 They supply these fittings with their fuel line kits, they'd probably sell you just the fittings if you ask nice!

Great idea, thanks!

 

[IvaTiger]

BSPP British standard parallel pipe. BPST is a tapered thread and will not work.

Yup. The British do have a different nomenclature than what is used in the US. There is both straight and taper pipe threads used in the US but why the British used the term parallel and the US use straight is beyond my thinking. Do you know if the fittings can be interchanged and. Does the US use 55 degrees or 60 degrees

 

[IvaTiger]

I went on the hose and fittings.com site and could not find BSPP. Is it BSPT, maybe?

A quick google search of BSPP got this website.