Gas Sediment bulb

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Model T Ford Forum: Forum 2012: Gas Sediment bulb
Top of pagePrevious messageNext messageBottom of page Link to this message  By Joe on Monday, May 28, 2012 - 06:18 pm:

I was flipping through a catalog this morning and ran across gas sediment bulbs. I have a 22 touring car with no sediment bulb .. where does it go??


Top of pagePrevious messageNext messageBottom of page Link to this message  By Peter Claverie on Monday, May 28, 2012 - 06:28 pm:

Your gas tank has a threaded hole in the bottom. The combination sediment bulb / filter screen / shutoff valve screws in to that hole. It serves all three of those purposes, and has a petcock on the bottom with which you can drain out accumulated sediment and water. Remember, in the T's day gasoline was prone to having both water and junk in it. Nowadays, only Ethanol - another form of junk.

If you remove whatever is screwed in to that hole in the tank, be sure to use a gasoline-approved pipe dope on whatever you screw into it. Regular white Teflon tape won't do, but there is a yellow Teflon tape that works well. There are other products sold at auto stores that are fuel-safe as well.

The fuel line from there to the carb used to be sealed at the ends with felt bushings, but nowadays we use the neoprene version. Both are available from the T parts suppliers very cheap.

DO NOT use copper tubing for the fuel line. It can "work-harden" as it vibrates, and eventually break. The original was brass or bronze tubing, and hard to get. We normally use steel brake lines, available at all auto parts houses in several sizes and lengths.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Joe on Tuesday, May 29, 2012 - 02:47 am:

thanks, I have a ball valve in it's place along with copper tubing that goes into another contraption that has another valve to turn the fuel on/off that is bolted to the frame at the firewall. From there I have about 6 inches of fuel line going into the carb. Looks like I have some cleaning up to do.


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