Doing away with sediment bowl ?

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pfj
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Re: Doing away with sediment bowl ?

Postby pfj » Tue Jul 07, 2015 12:32 pm

Well, after fussing with this a bit more I determined the intermittent fuel flow problem was as a result of a dirty in-line filter. I replaced the filter and all is well. I will be keeping the sediment bowl and the fuel filter for now.

I suspect the fuel filter got clogged as result of sediment in the tank getting disturbed when I took off the tank to renew the wiring. There probably was enough sediment that bypassed the sediment bowl to clog the filter. (The fuel filter that I replaced was not in for many hours.)

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Denny Clayton
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Re: Doing away with sediment bowl ?

Postby Denny Clayton » Tue Jul 07, 2015 8:25 pm

pfj wrote:I suspect the fuel filter got clogged as result of sediment in the tank getting disturbed when I took off the tank to renew the wiring. There probably was enough sediment that bypassed the sediment bowl to clog the filter. (The fuel filter that I replaced was not in for many hours.)

If that is the case you have a faulty screen in the sediment bowl.
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pfj
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Joined: Mon Dec 30, 2013 6:42 pm
Zip Code: V0R1T0
Tractors Owned: 1949 Farmall Cub
S/N 70009
Location: Denman Island, BC

Re: Doing away with sediment bowl ?

Postby pfj » Tue Jul 07, 2015 9:13 pm

good point; the screen doesn't seem to be fully covered by the rubber gasket. Is there a spec for the screen and/or a suggested supplier?

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Re: Doing away with sediment bowl ?

Postby staninlowerAL » Tue Jul 07, 2015 10:18 pm

Should be available from forum sponsers or auto parts like NAPA or CARQUEST. Be sure to use a nitrile or cork gasket, your choice, and assemble it according to instructions in the owner's manual.
fuel valve parts.jpg

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Re: Doing away with sediment bowl ?

Postby Rudi » Sun Jul 12, 2015 10:40 pm

pfj:

this is my solution ... How To Upgrade A Cub Fuel System
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Re: Doing away with sediment bowl ?

Postby BigBill » Tue Jul 14, 2015 1:16 pm

What's going to stop and hold the moisture in the fuel and the sediment? The bowl was designed there for a reason.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

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Re: Doing away with sediment bowl ?

Postby BigBill » Tue Jul 14, 2015 1:22 pm

Should always think about a 360 degree circle when using tubing. It takes up any vibration it may feel.
Vibration can make it weak and crack in time. This is why all the master cylinder tubing on the cars and trucks have these circles.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

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Re: Doing away with sediment bowl ?

Postby Matt Kirsch » Tue Jul 14, 2015 1:37 pm

The ethanol in the fuel takes care of any moisture, like drygas.

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Re: Doing away with sediment bowl ?

Postby gitractorman » Tue Jul 14, 2015 1:46 pm

Actually, water is much heavier than gasoline, so it naturally settles out to the bottom of the fuel tank, and also collects in bottom of the fuel bowl. I've seen a fair share of Cubs (and other old tractors) with that distinct line in the fuel bowl where there's a little slug of water at the bottom, and the fuel above it. I've also seen tractors run for months like this, without ever pulling the water into the engine or stalling out because of the water. The fuel bowl was a standard installation on any and every engine prior to the 1960s, and they really worked pretty good!
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Re: Doing away with sediment bowl ?

Postby indy61 » Tue Jul 14, 2015 1:57 pm

One of the best things I've done to my Cub is add an inline fuel filter. I had to clean the main jet several times before but not a problem since. I know the tank needs cleaned but this was an easy fix. I left the sediment bowl in-place but removed the horribly clogged carb inlet screen. Those two screens just did not do the job. Best things I've done is an Optima 6v battery and Pertronix ignition.

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Re: Doing away with sediment bowl ?

Postby Rudi » Wed Jul 22, 2015 9:39 pm

This is my solution and it is both an upgrade but also keeping it mostly origiinal .. How To Upgrade a Cub Fuel System I always have my tanks professionally cleaned and sealed with Red Kote. Pays off in the long run.
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