Farmall M sediment bowl

rkbenish

Member
I cannot find a sediment bowl that will fit my Farmall M tank the stem going into the gas tank is a half inch and the normal ones are bigger I don't know if this sediment bowl was customized but I can't find a replacement and my old one is starting to leak. Can you help?
 
Replacements are sold right here on YT. The thread "size" is close to 1/2" but the thread designated size is (I think) 3/8 NPT/ The ones from here will fit a standard Farmall tank. Jim
 
2x on Jim's answer of 3/8"NPT that is a the original size anyway. Unless your tank has had a different/ larger what I call "thread bung" installed. Also 2x the answer by Leroy about adding packing. An old trick my grandpa used, was to back off the packing nut pull it back. Then wrap 5 or so rounds of string around the valve shaft and retighten. Just a way to compress the packing more if you don't have any on hand. If by "leaking through" you mean it is not stopping gas flow to the carb when shut off that probably mean replacement because the aluminum seat has corroded. Good luck!
 

Also there is a seat at each position, open it all the way to run and it will seat open to seal the packing from the gas stream.
 
If you happen to have a early enough M the tank outlet was 1/4 inch pipe threads that would be close to 1/2 OD on bowl or ID in tank.
 
Boys, you better listen to Dave. He knows his stuff.I have a 40 M bought new by grandfather and it has a 1/4 inch pipe thread in the bottom. Matter of fact, just replaced sediment bowl last spring. Go to a GOOD auto parts or hydraulic place and get a 1/4 x 1/8 male tomale adapter and a sediment bowl with a 1/8 female thread inlet. NAPA 730-2360
 

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