WD sediment bulb issues
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=204420
Printed Date: 29 Jul 2025 at 5:03pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD sediment bulb issues
Posted By: SteveRogers
Subject: WD sediment bulb issues
Date Posted: 04 Dec 2024 at 9:07pm
| Having problems with the fuel shut off valve on my WD. It leaks and I can't get it to stop leaking. Appreciate and help I can get. |
Replies:
Posted By: HudCo
Date Posted: 04 Dec 2024 at 9:49pm
| take the bowl off gasket and screen and take a screwdriver or good sharp narrow scraper and scrape the gasket area until all the oxidized aluminum is gone and it is smooth and it will seal |
Posted By: DrAllis
Date Posted: 04 Dec 2024 at 10:03pm
| With a 7/16" wrench, tighten the nut on the shut-off valve until there is drag on the shut off handle when you turn it in and out. |
Posted By: Alberta Phil
Date Posted: 04 Dec 2024 at 10:06pm
|
Unscrew the packing nut on the shutoff shaft and make a small string of teflon plumbers tape by twisting it. Wrap it around the shaft and poke it into the nut. Then slide it back into place and tighten the packing nut 'til it stops leaking. |
Posted By: Ray54
Date Posted: 05 Dec 2024 at 11:41am
Be careful you can bend the base where the bowl and gasket sits if you over tighten the glass bowl. So a new gasket is a good place to start if the bowl leaks rather than the stem of the shut off. I have used o rings and other rubber washers in a pinch.  Cat pony motors with the smallest size bowls, a garden hose washer is the perfect size. Some even last in the gas.
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Posted By: Ed (Ont)
Date Posted: 05 Dec 2024 at 5:35pm
As others have mentioned it could be leaking at the shaft not bowl so check that. Mine is doing that so now I just leave it on all the time and no leaks. I will try what Doc suggested - just noticed that comment and it makes sense!! I will report back. 
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