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Strange Oil Drain Plug

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Old Mar 2, 2019 | 03:44 PM
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Strange Oil Drain Plug


Was going to change the oil on my 75 f150 390, but it seems to have this strange rubber drain plug. Previous owner swapped this motor in, and must have installed this. Any ideas on how to remove it? It seems to be grabbing from the inside.
 
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Old Mar 2, 2019 | 06:59 PM
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I really can't tell what is going on with that picture. Can you get one without the glare?
 
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Old Mar 2, 2019 | 07:09 PM
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Here is another picture from the side of the oil pan. The first picture is looking directly at the plug straight on.

 
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Old Mar 2, 2019 | 07:10 PM
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What have you tryed allready?
looks to have notches top and bottom cant tell how far apart maybe will still turn out with a screwdriver. Otherwise i would gently pry from an edge and see if it has an inside lip like a firewall plug
 
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Old Mar 2, 2019 | 07:34 PM
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I believe there is some sort of inside lip. Turning the metal part with a screwdriver dosent do anything. I am thinking there must be some kind of tool the pushes into the center and releases it from the inside. No luck finding any info on it, except here so far: https://www.bobistheoilguy.com/forum...pics/1320878/1
 
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Old Mar 2, 2019 | 07:56 PM
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Have you tried a 3/8” ratchet like you would on a differential check plug?
 
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Old Mar 2, 2019 | 07:56 PM
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My guess is that it is what you found in the link. ( a repair plug) I bet that within a day or two someone on here will have a concrete answer. I would hold off on trying to remove it until you have some better info. in case you bugger it up. Maybe show the picture to your mechanic...
 
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Old Mar 2, 2019 | 08:00 PM
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Rubber drain plug, aftermarket, sold by auto parts stores.
 
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Old Mar 2, 2019 | 09:39 PM
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everything you could ever want to know about it...courtesy of the Canadian Patent office :-)
 
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Old Mar 3, 2019 | 12:24 AM
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Never seen anything like it. But what I do see is what looks like a swapped in motor and a cutting torch hole in a cross member so you can get what ever special tool is needed thru the cross member to remove said plug. You try is not the right way I see you either tearing the plug in half and the inside part staying inside the pan. So when and if you end up dropping that pan I'd have another correct oil pan metal threaded plug and weld in bung on hand to relocate to a better part of the oil pan. And plug that hole properly to be never used again. Good luck with it.
 
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Old Mar 3, 2019 | 02:14 AM
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That rubber plug is sold as an emergency plug and also heavily used by junkyards. Every vehicle at the junkyards get them after the fluids are drained to stop leaks on the ground.
 
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Old Mar 3, 2019 | 10:44 PM
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Those patent drawings are exactly what I needed! Thanks for the help
 
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Old Mar 4, 2019 | 07:47 AM
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As said that is an "emergency" plug used when the factory plug threads strip out you can get them at auto parts stores.
It comes as a 2 part kit: 1 plug & 1 tool to install / remove plug.
The tools I have seen are bright green plastic. They have a long nose lack of a better word, and thin pins up near the handle that go across the nose.
When you push the tool into the rubber plug the nose pushes the plug in stretching the plug to "unlock" it.
You then turn the tool so the pins lock into the lip under the head and then you can remove the plug with tool.
I would think there is a YouTube video on this.
Dave ----

edit: I could not find a picture of what I posted above I cant believe they stopped making them?
 
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