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Fuel Tank Drain Plug
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   Forward Look Technical Discussions -> Engine, Exhaust, Fuel and IgnitionMessage format
 
69rrgrabber
Posted 2018-11-29 11:07 PM (#574382)
Subject: Fuel Tank Drain Plug


Member

Posts: 8

I was working on my 58 Desoto, changing the differential oil when I noticed a plug at the bottom of my gas tank and wonder if it can be removed to drain the gas. The plug has a recessed six point star, so I guess it takes a special tool to remove it. Is it a plug?

Thanks,

Carl
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Coronet_Jeff
Posted 2018-11-29 11:20 PM (#574383 - in reply to #574382)
Subject: Re: Fuel Tank Drain Plug


Member

Posts: 17

Yes it is a drain plug. Same plug used in the 40s up until 59 I think? They can be very difficult to remove, use plenty of penetrating oil.
Also, you'll want to have a new rubber gasket (#1122361) handy or it will leak. You can buy them on ebay.
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69rrgrabber
Posted 2018-11-29 11:28 PM (#574384 - in reply to #574382)
Subject: Re: Fuel Tank Drain Plug


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Posts: 8

Used search function and found a 1/2 drive extention will remove the plug. Just need to find a gas resistant washer to seal it. Any source for these?
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56D500boy
Posted 2018-11-30 1:00 AM (#574388 - in reply to #574383)
Subject: Re: Fuel Tank Drain Plug



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Coronet_Jeff - 2018-11-29 11:20 PM

Yes it is a drain plug. Same plug used in the 40s up until 59 I think? They can be very difficult to remove, use plenty of penetrating oil.
Also, you'll want to have a new rubber gasket (#1122361) handy or it will leak. You can buy them on ebay.


The 55-58 Parts Manual has one set of PNs for 1955-57 and another for 1958 (and maybe beyond):

1955-57 = 1122 359 for the plug and 1122 361 for the seal

For 1958 = 1739 194 for the plug and 1739 196 for the seal

This thread has some related info including a chart for gas-compatible rubber washers:

https://www.forcbodiesonly.com/mopar-forum/threads/gas-tank-drain-ga...







Edited by 56D500boy 2018-11-30 8:04 AM
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wizard
Posted 2018-11-30 1:13 AM (#574389 - in reply to #574382)
Subject: Re: Fuel Tank Drain Plug



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Location: Southern Sweden - Sturkö island
Viton is the only material that will withstand modern fuels.
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ToMopar
Posted 2018-11-30 2:32 AM (#574394 - in reply to #574382)
Subject: Re: Fuel Tank Drain Plug



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Anybody has some of those Viton washers for me (will pay for it), I don't want to order 100 pc + shipping + customs, - I need only one

Here is a picture of the plug, and the picture of the "SPECIAL" tool

Edited by ToMopar 2018-11-30 2:38 AM




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Attachments
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Attachments 3231i.jpg (140KB - 4 downloads)
Attachments 3231j.jpg (131KB - 5 downloads)
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60 dart
Posted 2018-11-30 4:26 AM (#574395 - in reply to #574382)
Subject: Re: Fuel Tank Drain Plug



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i like to use leather and coat both sides with black sealer . tighten it finger tight for a couple hrs and fully tighten . it'll never leak
in your lifetime ------------------------------------------------later
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wizard
Posted 2018-11-30 4:55 AM (#574396 - in reply to #574394)
Subject: Re: Fuel Tank Drain Plug



Board Moderator & Exner Expert 10K+

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Location: Southern Sweden - Sturkö island
ToMopar - 2018-11-30 8:32 AM

Anybody has some of those Viton washers for me (will pay for it), I don't want to order 100 pc + shipping + customs, - I need only one

Here is a picture of the plug, and the picture of the "SPECIAL" tool

Tom, I bought a small sheet locally and made my own washers. Got the tank sender gaskets tailormade too at a reasonable price
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