Farm Equipment - Simple fuel system parts questions

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Simple fuel system parts questions

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206985
Printed Date: 07 Jun 2025 at 6:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Simple fuel system parts questions

Posted By: RMD
Subject: Simple fuel system parts questions
Date Posted: 04 Jun 2025 at 8:29pm

I need a sediment bowl assembly and a gas cap for my Series II D-12. Does anybody have a good recommendation of an on-line source to get parts with some resemblance of quality? (not TSC crap). Also a lot of the gas caps I see listed for the D-12 are not vented. I tried a non-vented cap once and the tractor wouldn't keep running very long. Is it supposed to be vented or non-vented?

Replies:

Posted By: WF owner
Date Posted: 05 Jun 2025 at 5:33am

The cap has to be vented. Any gas tank that does not have a vent built into it, needs a vented cap.

As far as the sediment bowl assembly, I know of none that are of better quality. I have changed several over the years and I see very little difference in quality in the aftermarket sediment bowl assembly than the original.

Posted By: Mikez
Date Posted: 05 Jun 2025 at 6:46am

Did you try A&W tractor

Posted By: PaulB
Date Posted: 05 Jun 2025 at 7:10am

As for the sediment bowls, It really doesn't matter what the packaging is, they all come for the same place. If you end up with a bad one, it just escaped the poor QC, try another.

And yes it needs a vented cap that also allows the built up pressure to release, because when the tractor get up to operating temperature the gas in the tank has expanded more than you'd think.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: RMD
Date Posted: 07 Jun 2025 at 12:03pm

I ended up ordering from NAPA. Part supplied was Sparex brand - looks reasonable; will have to see what happens when installed. Not made in China - made in India.