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Pinion seal help

Discussion in '2nd Gen. Tacomas (2005-2015)' started by FourBanger99, May 17, 2017.

  1. May 17, 2017 at 6:51 PM
    #1
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    So I replaced my rear pinion seal two weeks ago. Install went smoothly besides the fact that after I tapped the seal in completely, the rusted outer edge of the diff scrapped the sides of the seal pretty good (as seen in the clumps of scrapped rubber in the picture). I figured that it would be fine so I buttoned it all back up. After the first day it started to leak again very slightly. Today (two weeks later) it is leaking profusely, dripping out and leaving a small puddle everywhere I park.


    Here are the three things that I think may have caused the leak

    1) the scrapped outer edge of the seal
    2) I slathered a shit ton of greaser on everything. Could this have caused a failure?
    3) when torqing down the pinion nut, I used and impact wrench to crank the nut that last half turn.

    I've got a feeling one of these three things is the culprit.
    The truck is ridding absolutely fine, no vibrations or noise. Just pewking the gear oil.

    Any help would be greatly apriated with finding the problem and helping me install the new seal. Thanks

    IMG_4748.jpg
    IMG_4747.jpg
     
  2. May 17, 2017 at 6:54 PM
    #2
    computeruser6

    computeruser6 Nuclear Janitor

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    The pinion bearing could be going bad. Is there a lot of play?
     
  3. May 17, 2017 at 6:56 PM
    #3
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    The truck has only 23,000 miles on it. I winggled the pinion shaft real good when I did the first replacement and it didn't move. It started leaking 24 hours after install over only about 5 miles to and from school.
     
  4. May 17, 2017 at 6:57 PM
    #4
    FFBlack

    FFBlack Well-Known Member

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    I can see the seal isn't sitting in there properly, did you use a seal driver or tap around it to seat it in? I would take some emery cloth and clean everything back to bare clean metal, clean that grease etc out. Get a new seal and use a seal driver to properly seat it. Allso with the seal driver you want to give it 1 or 2 good blows with a hammer to seat the seal! Allso I would get the seal from Toyota.
     
  5. May 17, 2017 at 7:01 PM
    #5
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    I used a 2x4 and a ball peen hammer to try and push it in as evenly as I could. It sat relatively flush but I guess it has to be perfect. Where does one purchase emery cloth and that magical sounding seal driver?
     
  6. May 17, 2017 at 7:01 PM
    #6
    OKTACO

    OKTACO Well-Known Member

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    What's date of first use on the vehicle, could get warranty to pay if within 5 years.
     
  7. May 17, 2017 at 7:02 PM
    #7
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    Bought it used from Jacksonville FL. Tried to get tsb springs back in December, they said I had no warranty on the truck.
     
  8. May 17, 2017 at 7:02 PM
    #8
    computeruser6

    computeruser6 Nuclear Janitor

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  9. May 17, 2017 at 7:05 PM
    #9
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    Thanks @computeruser6 and @HAIRYTACO , I'll get that rust of with the emery cloth and find that seal kit. This is why I freaking love Tacoma World right here.
     
  10. May 17, 2017 at 7:28 PM
    #10
    OKTACO

    OKTACO Well-Known Member

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    Powertrain warranty is 5 years or 60k miles whichever comes first.

    Leaf spring bulletin is different.
     
  11. May 17, 2017 at 8:01 PM
    #11
    paranoid56

    paranoid56 Well-Known Member

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    also, you need to be careful on putting the pinion nut back on, as you will change the preload.
     
  12. May 18, 2017 at 5:25 AM
    #12
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    I put the pinion but on exactly the way I found it, to the mm. Will that have changed since I removed it, and hit it with the air wrench a for that last few mm's?
     
  13. May 18, 2017 at 5:28 AM
    #13
    FourBanger99

    FourBanger99 [OP] My 4cyl Taco that gets 15 mpg and I don’t gaf

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    Full OME Suspension CB Diff Breather Duratracs
    I'll ring up my local Toyota dealer and figure it out. Having them do it sure sounds better than pulling the diff apart again.
     
  14. May 18, 2017 at 6:21 AM
    #14
    OKTACO

    OKTACO Well-Known Member

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    If you want to shoot me your vin ill look it up for you real quick if you want.
     
  15. May 18, 2017 at 8:13 AM
    #15
    paranoid56

    paranoid56 Well-Known Member

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    well, i think the proper way would be to have counted the revolutions it took to remove. as it uses a crush sleeve so you might have crushed it more causing more drag.
     

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