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Elite Veteran
Posts: 769
Location: Oley, PA | The drain plug on the fuel tank of my 59 Windsor has had a slow drip for some time now. I tried to tighten it today but that seemed to made it worse.
So I took it out. Drained about 6 gallons of fuel too! Which was interesting since the gauge was reading just a hair above E.
Nevertheless, here's the drain plug. Shouldn't it have some kind of washer? (it didn't). if so, what kind and where would I get one?
If not a washer, should I use teflon tape?
Any ideas are welcome.
Edited by Greg P. 2014-06-13 7:12 PM
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Attachments ---------------- drainplug.jpg (41KB - 354 downloads) drainplug2.jpg (51KB - 354 downloads)
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Expert 5K+
Posts: 7207
Location: Victoria, BC, on Vancouver Island, Canada | Mine was leaking last year, removed, drained gas, and put a rubber washer in. Not leaked since. There was a gasket in that was completely perished. |
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Expert
Posts: 3398
Location: Chestertown, NY ( near Lake George) | You can usually find the right gasket or seal that would usually be on an modern oil pan drain plug. |
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Extreme Veteran
Posts: 580
| When I took mine out it had what looked like a dried up sealant like putty in it. I just cleaned mine up and put some plumbers putty back in there and have not had a leak for over two years . |
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Elite Veteran
Posts: 769
Location: Oley, PA | My guy at the local NAPA shop rooted through his washer collection and found me this nice rubber washer. Works great!
Is red the normal color for a fuel tank?
Edited by Greg P. 2014-06-15 9:50 AM
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Attachments ---------------- drainplug3.jpg (48KB - 352 downloads) drainplug4.jpg (55KB - 342 downloads)
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Expert 5K+
Posts: 7807
Location: Williams California | In a pinch, if you cut a piece from an oil bottle or milk jug, it can be used for a gasket too. I had to do this once when I was miles from any town, and the plug began to drip fuel.
---John |
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Walter passed away on Jul 29, 2014. We will miss you, Walt!
Posts: 5358
Location: Heaven Above (Formerly Oklahoma City,OK) | I'm currently using a piece of milk jug for a washer on my oil pan. The soft copper washer was too far gone, and a
new copper one has not worked it's way to the top of the "do it" list. |
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Elite Veteran
Posts: 769
Location: Oley, PA | Some good ideas there. The only thing to watch for is that some plastics will dissolve pretty rapidly in contact with gasoline. |
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Location: North Australia | A Viton O ring would be a cheap easy solution.
Steve. |
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Elite Veteran
Posts: 1159
Location: D-70199 Heslach | I refresh this thread with a question of my drain plug.
Because I have no idea if my drain plug is reall a plug, it look much different to the pictures above (My car is a 57 Wagon)
I don't have the hexagonal for a allen key?
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Board Moderator & Exner Expert 10K+
Posts: 13049
Location: Southern Sweden - Sturkö island | Dig out all the dirt Tom - your plug looks like mine did. My one had a really deep Allen key hole.
Check if your's is deep as well, in my one the rust ate away the hexagon in the outer part but the inner part was still good. |
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Elite Veteran
Posts: 1159
Location: D-70199 Heslach | Does anybody know what thread this plugs have
or maybe someone has a spare for me (because I've weld a nut on mine to open it) |
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Elite Veteran
Posts: 1159
Location: D-70199 Heslach | I still looking for such a plug |
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Elite Veteran
Posts: 1159
Location: D-70199 Heslach | Does anybody know the name of this "eight - key" and the size.
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Expert 5K+
Posts: 6500
Location: Newark, Texas (Fort Worth) | Dude: just use a square drive. 3/8'' or 1/2''? |
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Expert
Posts: 1223
Location: Ramona, CA | Working on getting my '60 Chrysler New Yorker Town & Country wagon running and noticed the newly installed gas tank leaking at the drain plug. Siphoned the gas out of the tank and pulled the plug and here is what I found. Now to make a new gasket.
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Attachments ---------------- fuel_tank_plug_3b.jpg (156KB - 240 downloads) fuel_tank_plug_4b.jpg (182KB - 249 downloads)
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Expert 5K+
Posts: 9905
Location: Lower Mainland BC | .
This has come up before. I just checked the 1960 Mopar Parts catalog and 1739 194 (plug) and 1739 196 (seal) are good numbers.
56D500boy - 2018-11-29 10:00 PM
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 2020-11-12 5:02 PM
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Expert
Posts: 1223
Location: Ramona, CA | 56D500boy - 2020-11-12 1:44 PM
.
This has come up before. I just checked the 1960 Mopar Parts catalog and 1739 194 (plug ) and 1739 196 (seal ) are good numbers.
56D500boy - 2018-11-29 10:00 PM
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...
Yes, seen that before. The McMaster Carr washers aren't thick enough. I ordered a viton flange gasket that I can cut the washer out of.
Edited by NicksGarage 2020-11-12 6:18 PM
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Expert
Posts: 2196
Location: Muskego, WI | I would try an o-ring rather than a flat washer. Clean out the underside of the plug and the mating surface of the tank, you can use some fuel compatible Permatex as well. Get an o-ring that fits just snug enough onto the threads of the plug that it won't fall off and a cross section diameter that, when tight, will be compressed 10 to 30%. |
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Veteran
Posts: 145
| These plugs are designed for an o-ring. I get the HELP! brand part# 90100 fuel injection o-ring kit at the local parts store. This kit
has the perfect size viton o-ring for these plugs. |
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Extreme Veteran
Posts: 445
Location: Beaumont TX | For a gasket, I used Super Black RTV on mine and it has worked fine. I took it out once and was easy enough to remove. An "O" ring, as mentioned above is probably more of the factory fix, but RTV works real good for this service. |
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Expert
Posts: 1223
Location: Ramona, CA | I made a new seal for mine over the weekend. Ordered this Viton gasket from Amazon to cut one out. I'm going to make another one a little neater. I just used scissors and a razor knife to make this one. Found that buying this gasket was cheaper than buying a sheet.
https://amzn.to/3nm65Ga
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Attachments ---------------- fuel_tank_plug_5.jpg (116KB - 244 downloads) fuel_tank_plug_6.jpg (135KB - 230 downloads) fuel_tank_plug_7.jpg (245KB - 245 downloads) fuel_tank_plug_8.jpg (181KB - 242 downloads) fuel_tank_plug_10.jpg (91KB - 239 downloads)
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Extreme Veteran
Posts: 341
Location: Wisconsin | I bought a Viton O-ring for my '56 tank at my local Ace hardware store. |
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Expert 5K+
Posts: 7401
Location: northern germany | Teflon never ages and is fuel resistant. Just wrap it around the thread and maybe add some sealer to keep water away and be done with it. |
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Expert
Posts: 1223
Location: Ramona, CA | 1960fury - 2020-11-17 2:43 PM
Teflon never ages and is fuel resistant. Just wrap it around the thread and maybe add some sealer to keep water away and be done with it.
That won't work with how these screw into the tank. Where the plug screws in it is raised off the floor so you can completely drain the tank. The seal must be between the head of the plug and the tank. There's nothing wrong with sealing it the way the factory intended and that's with a flat washer. Everyone can do what they want, I was just sharing what I was doing. |
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Expert 5K+
Posts: 7401
Location: northern germany | NicksGarage - 2020-11-17 6:35 PM
1960fury - 2020-11-17 2:43 PM
Teflon never ages and is fuel resistant. Just wrap it around the thread and maybe add some sealer to keep water away and be done with it.
That won't work with how these screw into the tank. Where the plug screws in it is raised off the floor so you can completely drain the tank. The seal must be between the head of the plug and the tank. There's nothing wrong with sealing it the way the factory intended and that's with a flat washer. Everyone can do what they want, I was just sharing what I was doing.
I see, it is the same for 1960. Anyway, if you wrap enough Teflontape around the bolt towards the head it will seal anyway. |
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Expert
Posts: 1223
Location: Ramona, CA | Here are some that I stamped out with a leather punch.
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Attachments ---------------- fuel_tank_plug_11.jpg (160KB - 243 downloads)
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Extreme Veteran
Posts: 445
Location: Beaumont TX | Nick has the right way to gasket the fuel tank drain plugs. What is the material? Will you be selling these? |
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Expert 5K+
Posts: 9905
Location: Lower Mainland BC | samstrader - 2020-11-22 4:32 PM
Nick has the right way to gasket the fuel tank drain plugs. What is the material? Will you be selling these?
Selling is a good question. I'd buy one (if I needed one)
I think he used this Viton gasket for the material.
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Expert
Posts: 1223
Location: Ramona, CA | It's viton but they don't say what type. I've had a sample in a jar of pump gas with 10-15% methanol and it has had no affect on it.
I guess I could sell them. I'm not sure what years are the same size but different sizes are easy enough. I haven't yet installed it in the tank and filled it with gas. I'll do that this coming weekend. |
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Extreme Veteran
Posts: 352
| It looks the same as the plug in the tank of my 2016 RAM 1500. Check it out at the dealership
Del |
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