Stripped it now what

[natvet]

I was tightening fuel line onto carb and stripped out the female threaded part of the carb.
Can I drill and tap carb fuel inlet?? What size should I use? Will I have to change to 5/16 fuel line? I suspect i will have to drill and tap fuel pump the same? How do I prevent metal from tapping procedure from getting into the carb?
***$@#@!@^#&
I just got it back from Jim C and it works great that is until I scr**d it up.

 

[FJ40Jim]

Nathan,
The stock thread is 1/8 BSP.

The common American 1/8"NPT is slightly larger. So the carb body could be tapped to the larger NPT, then thread in a 1/8"NPT brass elbow and a 1/8NPT to 5/16" barb. Finally, cut the end off the steel line and bridge the gap between line and barb fitting w/ 2" of 5/16 rubber fuel line.

Not the prettiest solution, but it will get the truck back on the road quick.

 

[Blue77FJ40]

One way to avoid cuttings getting into the carb body would be to have a vacuum running with a stepped down to a small sized piece of tubing held by the tap as you turn. Another would be to remove the carb and hold it vertically as you tap, causing all cuttings to drop straight down. Or you could combine the two options. Some would say to grease the tap, but I'd not be to crazy about getting grease all up in there - but it could work.

You could also look into a permanent option of using a timesert fitting.

Good luck.

 

[natvet]

Can do...........thanks for the advice and ideas. The carb worked flawless. Thanks again Jim. The engine is a fresh rebuild so this was her first time to start and breakin went well. Will write it up later in build thread

 

[Poser]

One way to avoid cuttings getting into the carb body would be to have a vacuum running with a stepped down to a small sized piece of tubing held by the tap as you turn. Another would be to remove the carb and hold it vertically as you tap, causing all cuttings to drop straight down. Or you could combine the two options. Some would say to grease the tap, but I'd not be to crazy about getting grease all up in there - but it could work.

You could also look into a permanent option of using a timesert fitting.

Good luck.

Why not simply remove the top part of the carburetor so that metal cannot get into the float bowl and then later plug up fuel passages creating running/drivability issues later?

 

[Blue77FJ40]

Why not simply remove the top part of the carburetor so that metal cannot get into the float bowl and then later plug up fuel passages creating running/drivability issues later?

You're right of course. I simply couldn't remember how/where the fuel line went in to the carb sitting here at the Mac and said remove carb. One look and it'd be apparent that just the top needed to be removed. Good catch.