Farmall M ball valve/inline filter vs sediment bowl

3500sport · Jul 21, 2010

I recently got my M put back together from taking all the propane stuff back together and I dont have a sediment bowl. So I'm going to do like my dad has done years ago and install a ball valve and an inline gravity type fuel filter. What I'm looking for is what is the thread count/type for the top of the sediment bowl/bottom of the tank so i can screw a nipple type fitting in and put a hose on to run to my valve/filter. Any information on this? Or if something from lowes will work?

Thank you

farmallboy15 · Jul 21, 2010

why don't you just buy a new sediment bowl or one off of ebay instead of screwing with it.

Janicholson · Jul 21, 2010

I think it is 1/4" NPT thread. Jim

3500sport · Jul 21, 2010

Because I'd like to get it back together tonight rather than having to get one shipped from somewhere.

Thank you Jim!

rtb321 · Jul 21, 2010

3/8 npt, i don't blame you for using a ball valve, all my tractors have them. they're much easier to turn the gas on and off and they don't leak.

randy hall · Jul 21, 2010

your tank will have three eights inch npt threads unless it is from a '39 or early'40 model then it would be quarter inch npt.

Hoss In ME · Jul 21, 2010

Sediment bowl and valve from NAPA.Those filters youre talking dont take to gravity feed systems.They are used with fuelpump systems.Look at someones puller,bet you wont find an inline filter. Hoss

3500sport · Jul 21, 2010

They make inline filters designed for gravity feed, my dad has been using one on his M for 20 years now. But I didnt know that napa had sediment bowls

Dean Olson · Jul 21, 2010

I use a 3/8" ball valve on mine with an inline filter from NAPA. They make one designed for gravity flow. I got tired of having to mess with old worn out sediment bowls and new cheap junk ones. I've had no problems since converting. "They" told me those filter wouldn't work and would plug up all the time. I bought a couple extras just in case. I have several hundred gallons of gas through my SH and haven't had to change the filter yet.

3500sport · Jul 21, 2010

And I would think you could blast the inside of the filter out the opposite direction with solvent and reuse the filter if it did clog

bc · Jul 22, 2010

Napa makes a napa gold inline filter for about $5 that previous posters here have said is the best of the inline filters. Lots of stuff in the archives.

I come off the bottom of my tank with a couple of one to three inch brass nipples (depending upon your room) with a tee in the middle. A cap on the bottom forms a drip leg. Inside of this I have rolled up some window screen so it sticks up into the tank about an inch to catch the rust from entering. May or may not need the drip leg. From the tee I nipple out to a 3/8" brass ball valve and and then nipple out from there and elbow down to a new caseih sediment bowl. Then the line runs into the hose going to the carb.

I use the ball valve for a quick and easy shutoff. The brand new case sediment bowl has a shutoff but it leaked from day one so I have redundancy. Previous owner and I went through a few inline filters and I finally acidized the tank a couple different times for the rust. The screen catches the big stuff now but the bowl still catches the tank condensation in the winter along with the fines.

Two Banger · Jul 22, 2010

I've had an inline filter on a John Deere A with a gravity fed system and it has worked fine, I don't mess with the sediment bowls any more, they all seem to leak a little bit.

3500sport · Jul 22, 2010

Thanks for all the replies, I'm going to be looking around to get some decently priced 3/8 NPT ball valve as well as the inline filter.

Farmall M ball valve/inline filter vs sediment bowl

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rtb321

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