Construction and other equipment - Tank sealer and fuel tank cap

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Tank sealer and fuel tank cap

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=42769
Printed Date: 23 Jun 2025 at 4:39pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Tank sealer and fuel tank cap

Posted By: Freighttrain
Subject: Tank sealer and fuel tank cap
Date Posted: 27 Dec 2011 at 4:11am

What tank sealer would you guys suggest?I want to pull my I600 tank out since it seaps fuel around the bung at the bottom.Doesn't look real bad inside but you can see spots of rust.THinking it is a weld leaking since it is damp wet but not drooling wet.I also where can I find a replacement Cap?RIght now the cap consist of a cut off spray can as the cap is gone.Looks like it had a latching flap style once.

Replies:

Posted By: Jeff Z. NY
Date Posted: 27 Dec 2011 at 4:40am

I would take it out and clean off the paint and find the leak.
Alot of times it a rust hole just getting started.
If you clean the area reaaly good with a wire brush on a drill and wash it down good with some acetone JB weld might be the way to go.

JB Weld also has a product called Waterweld and I think it can be applied to a gas tank that is wet with gas and still leaking gas.
Check it out.

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Posted By: ctbowles58
Date Posted: 27 Dec 2011 at 8:37am

i use RED-KOTE it realy works great

Posted By: Bull
Date Posted: 27 Dec 2011 at 9:13pm

I have used JB and Red Kote with good results. I also use Seal All, it comes in a tube and will seal wet gasoline. It is available at most auto parts stores.

Posted By: Rawleigh
Date Posted: 28 Dec 2011 at 1:26pm

POR 15

Posted By: donw
Date Posted: 28 Dec 2011 at 2:49pm

Ditto on the POR-15 tank sealer

Don in WA