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Differential Breather Mod for Dummies (Pics)

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Neubs, Oct 2, 2008.

Page 34 of 52
  1. Dec 9, 2015 at 9:57 AM
    #661
    Subway4X4

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    Subway4X4 Shameless Copy Cat

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    Everything TW members recommend
    OP used 1/4" I.D. fuel line, which fits nicely over the the hose barb that he posted. Others have used 5/16" I.D. fuel line which would likely fit better over the larger diameter hose barb (the silver one I believe)
     
    Subway4X4, Dec 9, 2015
    #661
  2. Dec 9, 2015 at 10:01 AM
    #662
    GHOST SHIP

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    I know members have used both and none have reported any problems yet. But for my personal preference, part#5139 is closer to the same diameter as the breather union so it would make sense to keep it together for the same hose. I actually bought both of them and didn't realize unitl I got them that they were different. On a related note, I have part #
    $14 90404-51026 Intake Air Control Valve Union
    90404-51026 up for grabs if anyone wants it. $5 shipped. Haha!
     
    GHOST SHIP, Dec 9, 2015
    #662
  3. Dec 9, 2015 at 10:02 AM
    #663
    Timbo's Customs

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    Timbo's Customs Well-Known Member

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    1997 t4r has super duty axles, 5.13s locked front and rear. 3 link front with 14" kings. Rear 63s.
    I bought 5' of 5/16 fuel line and the hose fitting. Used the factory breather and just clamped it into the hose.
    Tookaybe 10 minutes to do this

    20150820_132101.jpg
    20150820_131541.jpg
    20150820_131446.jpg
     
    Timbo's Customs, Dec 9, 2015
    #663
  4. Dec 9, 2015 at 6:10 PM
    #664
    ImpulseRed008

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    ImpulseRed008 Gone But Not Forgotten

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    OEM SS tube steps, Access LE tonneau cover, pop n'lock, AVS in-channel vent visors, stubby antenna, Wet Okole seat covers, bed mat, rear diff breather mod, 4 extra d rings in bed, K&N air filter.
    you don't want to use that (one you took off the diff) it's not a true breather. you just extended it away from the diff. You will still have the same issue - potential to suck water in when it gets hot. You want the true breather so any pressure with be dissipated, won't get a chance to build up.
     
    ImpulseRed008, Dec 9, 2015
    #664
  5. Dec 9, 2015 at 6:13 PM
    #665
    Timbo's Customs

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    Timbo's Customs Well-Known Member

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    1997 t4r has super duty axles, 5.13s locked front and rear. 3 link front with 14" kings. Rear 63s.
    Its a open vent with a cap on it. If my truck gets water up to that vent I've hydrolocked my motor. It will be fine.
     
    Last edited: Dec 9, 2015
    Timbo's Customs, Dec 9, 2015
    #665
  6. Dec 9, 2015 at 7:30 PM
    #666
    misanthropicalme

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    misanthropicalme FNG

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    Is this cap (90930-03136 (Breather Union)) different from whats currently on the housing? Besides the thread being part of it...

    Are you recommending a specialized breather similar to the one sold at Piranha? (http://www.piranhaoffroad.com.au/product/recovery/diff-breathers)
     
    misanthropicalme, Dec 9, 2015
    #666
  7. Dec 9, 2015 at 7:51 PM
    #667
    ImpulseRed008

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    ImpulseRed008, Dec 9, 2015
    #667
  8. Dec 9, 2015 at 9:44 PM
    #668
    David K

    #668
    David K Well-Known Member

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    Differential Breather Mod Light Bar: 4 Cree LED lamps Bilstein 5100s Ride Rite Air Bags
    Please see my breather mod thread for clarity amigos (link in my sig.)
    The stock "thing" that is on the rear differential from the factory is NOT a breather, no matter what they call it. It is a spring loaded VENT. It only lets gasses OUT, but not fresh air IN. A "real" breather is a TWO-WAY flow of gasses out, fresh air in SO NO VACUUM is created in the differential and THAT is what PREVENTS contaminated water from SUCKING INTO the differential.

    THIS MOD puts a TRUE BREATHER, that Toyota uses on the FRONT differential, at the end of a hose, higher than any water level (hopefully). It is just a small opening so a bunch of dirt doesn't get in. They (K&N etc) also make filters to use for breathers on the end of the tubes.

    If you take off the stock "VENT" from the differential and put IT at the end of the hose, up high... you solved NOTHING! Any questions???
     
    David K, Dec 9, 2015
    #668
    JoefromPTC, Biscuits, 0uTkAsT and 3 others like this.
  9. Dec 9, 2015 at 11:23 PM
    #669
    misanthropicalme

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    misanthropicalme FNG

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    Thank you for clearing this up, I'll be doing this mod this weekend!
     
    misanthropicalme, Dec 9, 2015
    #669
    David K likes this.
  10. Dec 10, 2015 at 4:56 PM
    #670
    Pirhett

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    Was it hard to put the fuel line on the breather? I can't get it all the way on for the life of me
     
    Pirhett, Dec 10, 2015
    #670
  11. Dec 10, 2015 at 4:58 PM
    #671
    ImpulseRed008

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    ImpulseRed008 Gone But Not Forgotten

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    use a little dish soap ;) or oil
     
    ImpulseRed008, Dec 10, 2015
    #671
  12. Dec 10, 2015 at 5:00 PM
    #672
    Pirhett

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    Pirhett Instagram @pirhett_ship

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    Okay! Now I just need to pull off the amount I put on lol
     
    Pirhett, Dec 10, 2015
    #672
  13. Dec 10, 2015 at 5:01 PM
    #673
    vrod671

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    vrod671 The Okayest Member

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    i used oil as well. took a little to finally get it pushed in all the way..hole too tight (giggity)
     
    vrod671, Dec 10, 2015
    #673
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  14. Dec 10, 2015 at 5:05 PM
    #674
    vrod671

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    vrod671 The Okayest Member

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    what size hose are you using?
     
    vrod671, Dec 10, 2015
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  15. Dec 10, 2015 at 5:10 PM
    #675
    Pirhett

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    1/4 I think fuel line
     
    Pirhett, Dec 10, 2015
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    vrod671[QUOTED] likes this.
  16. Dec 10, 2015 at 5:11 PM
    #676
    vrod671

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    vrod671 The Okayest Member

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    a cold beer always helps with stress..lol
     
    vrod671, Dec 10, 2015
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  17. Dec 10, 2015 at 5:22 PM
    #677
    Pirhett

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    Pirhett Instagram @pirhett_ship

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    Lol I think I had too much which helped me mess it up. I tried spitting on the breather to get the fuel line on
    Giggity
     
    Pirhett, Dec 10, 2015
    #677
    vrod671[QUOTED] likes this.
  18. Jan 6, 2016 at 6:12 PM
    #678
    Bosshoag

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    Bosshoag Well-Known Member

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    Accidentally skipped to step #9. I'll have to work on procuring the new valves and try again another day.
     
    Bosshoag, Jan 6, 2016
    #678
  19. Jan 9, 2016 at 8:34 PM
    #679
    RifkinMasterson

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    RifkinMasterson Well-Known Member

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    Awesome DIY! FYI, if you decide to go full retard like myself - it takes you longer to finish this if you connect the hose first and then try to put the clamp on. :frusty:
     
    RifkinMasterson, Jan 9, 2016
    #679
  20. Jan 24, 2016 at 7:45 PM
    #680
    kgarrett11

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    kgarrett11 Master Yoda

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    What size line is everyone running? OP used 1/4, but ive also seen 3/8 and 5/16
     
    kgarrett11, Jan 24, 2016
    #680
Page 34 of 52

Products Discussed in

Toyota Genuine Spark Plug
$6.66
Toyota Genuine Parts - Union (90404-51319)
$8.00
Toyota Breather Plug - 90930-03136
$7.19
Trail-Gear Creeper Breather - Differential Breather Kit
$38.74
Toyota 90404-51026 Intake Air Control Valve Union
$13.58
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