Fuel Shut-off Valve Barrel Valve taper
 

Does anyone have the print of the Fuel Shut-Off valve that can give me the correct taper dimension for the Barrel Valve? I am thinking about having a taper reamer made, and then make a few oversized Barrel Valves where an original valve can have the bore enlarged to remove the gouges where an oversized valve can be lapped in. Thanks.

Re: Fuel Shut-off Valve Barrel Valve taper
 

If you are going to make oversize, just make the reamer to match the oversize valve.

Re: Fuel Shut-off Valve Barrel Valve taper
 

That seems like a lot of trouble to go to when these work so well - and for only $1.60 a time.
https://www.snydersantiqueauto.com/P...del-a/gas-tank

It's been years since I installed one of those and still working fine.

Re: Fuel Shut-off Valve Barrel Valve taper
 

Brent, can't you take apart a good valve and measure the taper angle?

Re: Fuel Shut-off Valve Barrel Valve taper
 

That will do a good job as long as the housing or the valve stem is not scored, but if either of them are damaged, the valve will always weep and leak, ...which ultimately defeats the reason for having the shut-off valve.




Thanks everyone for the thoughts. I may be overthinking this but here is why I am going in this direction. To begin with, ...in restoring an original valve, I probably only want to increase the housing bore size by 0.010". That would allow for 0.005" per side which would likely remove any deep scratches or gouges caused from dirt/debris/rust that has scored the valve housing. If I use the same degree of taper as original, then the slightly oversized reamer will pilot off of the existing bore and there will not be a need for building an alignment fixture to center the pilot. If I were to choose a different taper, then the new reamer potentially could rock as it is cutting the new taper, -and it likely would need to remove more material from the housing.


I have not measured a new valve to verify the taper, but I was hoping someone had the print that could look at it. I will purchase the print the next time I am at the archives so I know the exact number. Thanks again.