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Leak at fuel fitting

A

Aries68

New User
Another problem on my Farmall 140, I must have over-tightened the fuel line fitting near the sediment bowl like the one shown at the link and it separated where it narrows a bit in the hole where it screws under the sediment bowl. Now, it leaks gas there. Is there a replacement or some other option to remedy that at a Napa or Tractor Supply store without having to order that fitting?
https://s7d2.scene7.com/is/image/Steine ... S2622?$lg$
 
Your link is no good, but you must be talking about one
of these, in the 1st link. It is supposed to separate.
Might try a 5 or so wraps of kite string where they
separated. Actually you can gat them at your CaseIH
dealer or whatever they call themselves if you have
one nearby, see 2nd link. That probably will not help
you before Tuesday if that is what you need.
YT IH Fuel line nut

CNHI fuel line nut
 
Yes, thats it. The small round part at the tip that goes first into the hole broke off and it leaks when I screw the other behind it.
 
Also, would any type of thread sealant from a store work to stop the leak before I can get a new fitting?
 
The kite string was not a joke. It could very well stop
the leak. You may even need up to 10 wraps. Gasoila
and Permatex both have a sealer that is supposed to
be gasoline resistant. The problem is the threads are
not what seals this type of fitting. The tapered sleeve
part is what does the sealing against the taper and
squeezing the ID on the tube. The tube needs to be
smooth on the OD for it to seal properly. And as I said
in the other reply it is supposed to disconnect from the
nut. Weird IH deal.
 
Just use a ferrell from an air line or from water lines and slip on line then tighten to seal it. They are brass so no problem with gasoline deteriorating it. You could also use a different nut to fit the new ferrell the threads should be the same. Do check that part out while at the plumping shop or parts house. A good parts house should also have the ferrells and nut in stock for barke line that will fit. Of just replace the line with some copper nickel line for brakes comes in various sizes.
 
I keep a bar of soap to coat the threads on these fittings
with before assembly. Has worked in a lot of cases.
Good luck
 

For gosh sakes do yourself a favor and get the correct "hi-duty" combination ferrule/nut.

If you have a CIH dealer nearby most likely they have it in stock and some $4.

Nuts and ferrules for the standard type of compression fittings are NOT a correct fit into the threads/ports in the carburetor fitting or OEM sediment bowl.
 
A follow up to my problems.I tried screwing the fuel fitting to sediment bowl assembly again and this time, it did not leak. I must have simply not done exactly right before. Then, started the tractor and added a little bottle of Bars Stop Leake concentrate to the radiator and water and it seems to have stopped the leak in that. I allowed it to idle about 15 minutes and will add some ant-freeze coolant too before running again. There was a little smoke coming up from base of the exhaust pipe where it clamps on top of tractor, not much but never got worse before I turned it off. I had added some Seafoam before starting to fuel tank and oil because I thought it was sputtering a bit the last time I drove it but may also have been low on gas, not sure.
 
Im still getting a leak around the nut and fuel pipe that connects to the sediment bowl. I read that there was originally a flat washer, I assume brass, on the end of the fuel pipe and they later changed that to what the current ferrules look like. But, I am confused on what size ferrule. Should the ferrule be large enough to slide onto the fuel pipe and does it matter if the ferrule is not first connected to the larger nut that screws into the sediment bowl assembly?
 
If your pipe isn't perfectly round, pretty hard to stop a leak. may have to cut a wee bit off the end. use a tubing cutter as it's less likely to distort the line. The brass ferrule should just slide over the pipe. Good luck.
 
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