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Oil plug leak after I changed oil

Discussion in '2nd Gen. Tacomas (2005-2015)' started by AME219, Dec 5, 2019.

  1. Dec 5, 2019 at 9:31 AM
    #1
    AME219

    AME219 [OP] Member

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    I changed the oil in my Tacoma for the first time myself (haven't had it long). Also my first time changing oil. I tried to buy Toyota oil plug washers from the dealer but they were closed so I picked up some off brand ones from advance Auto. When reinstalling the plug, the old washer was pretty stuck to the pan and I had to use a flathead screwdriver to scrape it off. After performing the oil change, all seemed well until the next day when I noticed a few drips of oil on the driveway, I got under the truck and the plug was leaking. I tried to tighten a bit more (just barely snugged it before) and wiped it and drove a while and seemed to fix it, but now it is still barely seeping oil, maybe a drop or two per day. I feel like it may be the washer I used as it is a plain flat aluminum washer, unlike the felt material one that was on there before (no oil leaked before) I was also very careful not to overtighten, and don't wanna tighten it any more so I don't strip it. Is there any way to change the washer without draining all of the new oil out (it's expensive synthetic) or is there anything else I should try?
     
  2. Dec 5, 2019 at 9:34 AM
    #2
    NAAC3TACO

    NAAC3TACO Middle aged member

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    The problem is most likely the gasket. You could just live with the leak until the next change or buy a new clean drain pan to drain the new oil into so you can reuse it.
     
    scottalot and Clearwater Bill like this.
  3. Dec 5, 2019 at 9:56 AM
    #3
    JC15Taco

    JC15Taco Well-Known Member

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    Or you can get a new OEM gasket, get a friend over...quickly unscrew the plug and block the hole with your thumb. Have your helper swap the gasket and pass back to you. Screw it in quickly and your done. Might cost you half a quart max...will get your hands dirty though. :eek:
     
    RTX Taco, Marc70, robssol and 3 others like this.
  4. Dec 5, 2019 at 9:59 AM
    #4
    diabetiktaco

    diabetiktaco Instalander

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    The dorman gaskets from advance are bigger inner diameter than the toyota gaskets. You have to line them up perfect for it to work. You can probably loosen the bolt slightly and make sure the outer diameter it flush w/ the bolt and tighten.
     
    SR-71A likes this.
  5. Dec 5, 2019 at 10:50 AM
    #5
    AME219

    AME219 [OP] Member

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    The gasket I used was a dorman. Thanks for the tip, it looked centered but I just looked at it again and it felt slightly not flush with the plug on one side. I just tried loosening the plug and trying to recenter the washer as best I could and re tightening, so I'll see if that works.
     
  6. Dec 5, 2019 at 10:53 AM
    #6
    PzTank

    PzTank Well-Known Member

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    Just for clarity:

    The oil plug uses a copper crush washer.

    It is not felt.

    If one replaces the crush washer with a flat aluminum washer, you’re not achieving the proper seal or torque.

    One must be careful when torquing the plug with the crush washer- typically you can feel it actually crush and that’s enough, maybe a bit more snug and that’s all that’s needed.

    You can strip the threads over torquing.
     
  7. Dec 5, 2019 at 11:06 AM
    #7
    Muddinfun

    Muddinfun Well-Known Member

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    The ones that the local Toyota dealer throws in the filter box for me are a black gasket material type stuff.
     
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  8. Dec 5, 2019 at 11:14 AM
    #8
    nd4spdbh

    nd4spdbh Well-Known Member

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    OP could of gouged the pan when he scraped off the old one.

    FYI, if you stick a shop vac on the oil filler at the top of the motor, you can remove the drain plug without loosing any oil if you want to replace the drain plug gasket.
     
  9. Dec 5, 2019 at 11:22 AM
    #9
    NAAC3TACO

    NAAC3TACO Middle aged member

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    robssol likes this.
  10. Dec 5, 2019 at 11:22 AM
    #10
    JC15Taco

    JC15Taco Well-Known Member

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    Heard of that...just never had the pills to try it.
     
  11. Dec 5, 2019 at 11:24 AM
    #11
    Muddinfun

    Muddinfun Well-Known Member

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    Personally, I think that’s right up there with unlocking a car with a tennis ball.
     
  12. Dec 5, 2019 at 11:25 AM
    #12
    nd4spdbh

    nd4spdbh Well-Known Member

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    that is BS.

    This though, pull a vacuum on the crank case, and you wont loose oil, physics.
     
    12TRDTacoma likes this.
  13. Dec 5, 2019 at 11:32 AM
    #13
    iwashmycar

    iwashmycar a lot

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    Just order a Fumoto drain valve and never have to worry about the washers again.
     
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  14. Dec 5, 2019 at 11:44 AM
    #14
    XSplicer62

    XSplicer62 Well-Known Member

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    After 19 oil changes, my trucklet still has the original copper crush washers.... and still doesn't leak a drop.
    I have a small supply of new ones but haven't needed them yet.
     
  15. Dec 5, 2019 at 11:46 AM
    #15
    Muddinfun

    Muddinfun Well-Known Member

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    But... Here's my problem with that. There's a big crankcase ventilation hose connecting the crankcase to the air box, which, in theory should make it impossible to pull a vacuum.
     
  16. Dec 5, 2019 at 11:50 AM
    #16
    CRU

    CRU Well-Known Member

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    +1

    All my vehicles have been using Fumoto valves for years.
     
    verynearlypure likes this.
  17. Dec 5, 2019 at 12:52 PM
    #17
    EnonEye

    EnonEye Well-Known Member

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    works... been there, done that, works great just use at your own peril as in don't switch the shop vac to "blow" :crapstorm:
     
  18. Dec 5, 2019 at 12:53 PM
    #18
    nd4spdbh

    nd4spdbh Well-Known Member

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    The volume of air pulled by the shop vac is greater than what the drainplug hole and crank case vent can supply so vacuum is still achieved.
     
    PzTank and Rob MacRuger like this.
  19. Dec 5, 2019 at 1:13 PM
    #19
    Muddinfun

    Muddinfun Well-Known Member

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    OK, since it's been done by someone on TW, I'll believe it. Sorry for the scepticism.
     
  20. Dec 5, 2019 at 1:13 PM
    #20
    JC15Taco

    JC15Taco Well-Known Member

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    Have no doubt about the physics at all....just that even remotely combustible gases in a shop vac can bite a fella.
    Just never bothered to test it.
     

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