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10-09-2020, 06:14 AM | #1 |
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36 Can't Stop The Oil Pan Drain Plug Drip
What gasket do you find is best on the oil pan drain plug? I have replaced the drain plug and can not stop the constant drip. I see Mac's has two types of washers, the crush type and the standard flat copper ones.
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10-09-2020, 06:53 AM | #2 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Don't be afraid to use some non-hardening Permatex along with whatever washer you choose to use.
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10-09-2020, 07:31 AM | #3 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
On some modern cars washers with rubber insert are used, I have used those washers on other problem leak cars
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10-09-2020, 08:17 AM | #4 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
At your next oil change, take a moment to determine whether the threads of the drain are damaged or whether the surface to which the washer seals is not smooth; either is easily corrected and should assist with a permanent fix. In the interim, +1 on the Permatex option.
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10-09-2020, 08:22 AM | #5 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Suspected partial cross-threading at some point in the car's long run of life
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10-09-2020, 09:44 AM | #6 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
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10-09-2020, 12:08 PM | #7 | |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Quote:
I would do as suggest by someone else here, check for cross threading of plug & oil pan threads, look for other possible damage of plug and pan in the sealing areas, and find or make a copper gasket that will stay on the plug when it's removed from pan
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10-09-2020, 12:43 PM | #8 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
My 36 marks it's territory under the drain plug as well. In my case it isn't the plug--the bung itself leaks from the seam where it is attached to the oil pan. It is on my project list to take the pan off some day and put some JB Weld on the inside, but it will be done tomorrow..........and we know tomorrow is never here!!
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10-09-2020, 02:40 PM | #9 | |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Quote:
I'm not a big fan of JB Weld never had very good luck with that stuff. |
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10-09-2020, 04:14 PM | #10 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Thanks guys, I will take a closer look next time and will use some Permatex. So no comments on what washer to use? Anything one is as good as the other?
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10-09-2020, 06:53 PM | #11 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Have you tried a plastic washer backed up with a steel one?
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10-09-2020, 07:05 PM | #12 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Have not tried a plastic washer.
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10-09-2020, 07:06 PM | #13 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
have you thought the leak might come from the large cotter pin in rear of pan ?
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10-09-2020, 07:13 PM | #14 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
I use a large rubber O ring. Works great
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10-09-2020, 07:13 PM | #15 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
I have read about the cotter pin, have not investigated yet, need to really study under there next time my body feels like crawling under.
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10-09-2020, 07:17 PM | #16 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
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10-09-2020, 08:39 PM | #17 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
I am not a fan of using an O ring in a joint that is not designed for it. I would use a copper or aluminum washer and replace it every oil change.
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10-10-2020, 12:46 AM | #18 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
pipe tape was suggested by someone i to don't like tape for same reasons however i do use the liquid Teflon paste Wipe some on the thread small bead on the washer tighten and wipe off excess works a treat
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10-10-2020, 05:55 AM | #19 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
Have your machinist buddy turn out a thin aluminum washer for you or use my favorite thread sealer: Blue Monster, great stuff on anything but wash the area with alcohol first.
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10-10-2020, 08:27 AM | #20 |
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Re: 36 Can't Stop The Oil Pan Drain Plug Drip
A little Loctite 518 on between the washer and the pan will stop the leak and it’ll still be easy to remove.
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