Overdrive Fill Plug Seized
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Joined: Jun 2007
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Overdrive Fill Plug Seized
At least that's what it feels like after couple hours and still not having it budge an inch. From the beginning it looked like the previous had rounded a little of the square head and after I've tried to take it off it looks worse. Ive tried soaking it in WD40 and still no movement. Is there any other trick to getting this plug off? Also, where can I find a replacement plug for it? It doesn't seem like ecklers or any other site carries them. Thanks!!!
Le Mans Master
Joined: Sep 2006
Posts: 6,050
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From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
IMHO,
the fill plug rotates into the case with the harmonic vibrations and oscillations of the case. It gets tighter and tighter with age.
If you have a really good hardware store near you, you can buy or order through them a square socket, and it fits these plugs really nice.
I have one, and no rounded corners.
Also, if you notice, the plug is steel. If you switch to a brass one and use the square socket, it will be easier to remove next time.
or for a little more, you can use stainless.
They should just be a regular 7/16 NPT(I think it's 7/16) pipe plug.
the fill plug rotates into the case with the harmonic vibrations and oscillations of the case. It gets tighter and tighter with age.
If you have a really good hardware store near you, you can buy or order through them a square socket, and it fits these plugs really nice.
I have one, and no rounded corners.
Also, if you notice, the plug is steel. If you switch to a brass one and use the square socket, it will be easier to remove next time.
or for a little more, you can use stainless.
They should just be a regular 7/16 NPT(I think it's 7/16) pipe plug.
Race Director
Joined: Apr 2003
Posts: 17,699
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From: moraga ca
At least that's what it feels like after couple hours and still not having it budge an inch. From the beginning it looked like the previous had rounded a little of the square head and after I've tried to take it off it looks worse. Ive tried soaking it in WD40 and still no movement. Is there any other trick to getting this plug off? Also, where can I find a replacement plug for it? It doesn't seem like ecklers or any other site carries them. Thanks!!!
Thread Starter
Advanced
Joined: Jun 2007
Posts: 83
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So for replacing the plug, a regular 7/16 pipe plug should do the trick, if I can't find the stainless or brass ones correct? I've already gotten the overdrive unit drained and surfaced cleaned before I realized that the plug was hard to remove, so driving it is out of the question. I'm going to try heat the area with a torch and see if it works. Also, what size square socket am looking at getting for this?
