I knew some of that, running a Lincoln now. I boogered the seat cover threads, best bet would be another one. I do have a nonthreaded version that i may have to use.

Frank/Rebop

Bristol, In ( by Elkhart) 

Frank:
You can thread the non-threaded bowl to accept a threaded needle valve seat. The thread is a 24 TPI which is same thread pitch as 3/8 fine thread however the seat thread is much larger.

I have used the tap from a 3/8x 24 helicoil to tap the bowl to accept a threaded seat.

I would try the tap in a piece of metal just to be sure it will work just in case some helicoil taps are different from the one I use. I would not want you to ruin a good bowl.

Those non threaded seats are very hard to find today and most carb kits say to re-use your seat if rebuilding a teapot.

marv

I may have to try that. thanks

Frank/Rebop

Bristol, In ( by Elkhart) 

the last teapot I put together for a fella down south of where I live, I had to do exactly that - Reuse the original needle and seat. I have never done the modification to the float bowl before... sounds like it would work fine though. When you do use a fuel bowl with a smooth bore, watch out for fuel pressure. They will leak like the dickens if you barely go over the recommended fuel pressure setting (don't ask me how I know, lol)

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

Which is my major worry, and with a blower and elevated fuel system pressure............!

Frank/Rebop

Bristol, In ( by Elkhart) 

If you tap the bowl thread straightness is important so not to leak.

I wrap a rag around the bowl before placing in the vice so not to damage anything then take a small level and level across the bowl seat opening, then attach the level ( it is magnetic) across the tap handle so all tapping will be true. I have also done it free hand or eye sighted that works as well also just the level is a more exact method.
marv

i may have a machine shop do it......I tend to screw up threads!

Frank/Rebop

Bristol, In ( by Elkhart)