I was changing out my fuel line from copper to steel and while screwing in the brass inlet elbow too tight I cracked the area of the carb to where a small amount of fuel will leak out when running. Up to that point it was a well running NH, now it has a small crack where the elbow threads in. Q: Can this be successfully repaired? If so what would you recommend? See photo of cracked area on carb marked with white chalk. Thanks
V it out and braze or silver solder then clean it up with a pipe tap. I am pretty sure it's 3/8 NPT. You could add a little thread sealer, the white stuff from Permatex seem to hold up fine to modern gas.
What I have found is if you use a new modern elbow they are much harder then the old ones. The EPA in their infinite wisdom made the the manufactures remove the lead from the brass making them too hard. When you turn the fitting the last little bit to get lined up, crack goes the housing.
If your NH can't be repaired, how many do you want? I've got four that I can't even sell as cores.
really, Terry is right, just get another one and save yours for parts. however, JB weld resists gas, i would smear some on a new elbow and screw it in.you might get lucky
The inlet thread is 1/8" pipe.
They can be repaired ,Silver solder is best. The trick is screw fitting in with your fingers and then just tighten it to where it needs to be,
That's one T item that's pretty common and can be had pretty reasonable.
Use yours for a learning experience in repairing it and buy you another one.
I had one with worn threads that wouldn't tighten and seal. I used a blue thread locker and it is tight and does not leak. PK
I successfully repaired mine by turning a brass collar to fit over the cracked inlet stub and soft soldering it in place. Its been running like this with no leaks for quite a few years now.