1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

stuck tranny fill plug

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Old Dec 5, 2006 | 11:05 AM
  #1  
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stuck tranny fill plug

I ned some idea on how im gonna get my tranny fill plug off so i can fill it up.

Im gonna tryheat today with a torch.

Any ideas?
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Old Dec 5, 2006 | 11:08 AM
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If you don't need to have it done right away, try a few treatments of PB blaster or JB 80.
Otherwise, if your using heat, don't torch it for too long!
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Old Dec 5, 2006 | 11:12 AM
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i tried wd-40 let it sit for 6 hrs and nada itsa real tight spot to get to,
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Old Dec 5, 2006 | 11:20 AM
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I would grab it with some vice grips and then beat on those with a hammer. Make sure the vice grips are on there at the tightest setting you can possibly get or it will spin off and round off the plug.

Why they didn't make this plug like the diff plug where you can get a 3/8 rachet in it to turn it with i don't know. A square plug isn't easily wrench at all.

If you use heat and PB blaster in intervals it may also help. Its aluminum so be careful with the heat. A plain plumbers torch should suffice, anything hotter might damage the casing if your over zealous.
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Old Dec 5, 2006 | 11:22 AM
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right on ill get some of that pb stuff or hatever my local parts store reccomends and go give her ****
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Old Dec 5, 2006 | 11:23 AM
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Vice grips and a breaker bar work well to get it off. Or I think it's the 15 or 17mm (not sure) Closed end of the wrench that will fit over the square plug
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Old Dec 5, 2006 | 11:26 AM
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Not sure what brand of tools you're using, but sometimes those drop forged wrenches open up too much and just "slip off", also another hting htat i've had good luck with is impact socket, the ones that are actually just 6 sided not the 12 sided as they normally just slip on the corners.
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Old Dec 5, 2006 | 11:29 AM
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side note to this, when you DO get the thing out, get some oil in the threads to keep it from corroding and becoming stuck (again)
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Old Dec 5, 2006 | 11:33 AM
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Some antisieze works good for that too.
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Old Dec 5, 2006 | 03:47 PM
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14 mm open end fits the fill plug. Heat it up at the base of the threads. When I get a stubborn one, I have a huge crescent wrench that I use. It must be tight or it will round off the edges. Anti-sieze is a must when re-installing.
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