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Idler Pulleys / Tensioner Pulley / Serpentine Belt

Discussion in '2nd Gen. Tacomas (2005-2015)' started by CIAGDDS, Jun 2, 2013.

  1. Jun 2, 2013 at 7:13 PM
    #1
    CIAGDDS

    CIAGDDS [OP] Well-Known Member

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    I attacked this project today, my truck has 124,000 miles on it and when I checked my pulleys they all wobbled and I was getting some weird noises under the hood. The three idler pulleys are easy. The Tensioner pulley sucks the big one. It took me 4 hours to get the tensioner out and in. Very tight space to work in. It was worth it in the end. The engine runs a lot quieter.

    I used post #3 in this tutorial to help me:
    http://www.fjcruiserforums.com/foru...154-idler-pulley-bearing-failure-what-do.html

    You definitely need to remove the fan and shroud to get the tensioner out, no need to remove the battery. Just disconnect the negative terminal before yanking the alternator. If you're just replacing the idler pulleys you can go in from underneath, remove the front skid guard, loosen the serp belt and just unbolt the pulleys, probably take 15-20 minutes for just those.

    This is what I replaced:
    [​IMG]

    Parts (Ordered all Gates products from RockAuto):
    (x2) Upper Pulleys (#2): 36173
    (x1) Lower Pulley (#1): 36174
    (x1) Tensioner w/Pulley: 38411
    Serpentine Belt: K070834

    Got everything for $194 shipped with a coupon code from retailmenot.
     
    Last edited: Jun 2, 2013
    Key-Rei, gc4078, pats73 and 4 others like this.
  2. Jun 3, 2013 at 11:58 AM
    #2
    Soft Taco

    Soft Taco For Love of Truck

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    Great info! Saved for distant future use.
     
  3. Jun 3, 2013 at 12:01 PM
    #3
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Just did this the other weekend to my truck, replaced the 3 idlers and the pulley on the tensioner. I also used Gates pulleys and a Gates belt from Rock Auto. I purchased the entire tensioner assembly but only ended up replacing the pulley. Replacing the whole arm looks to be a PITA. I pulled the new pulley off the new assembly and just swapped the pulleys. It's not overly hard and saves a LOT of time (no need to remove anything). Just remember, the pulley on the tensioner is reverse threaded!
     
    freddy2923, basically_stock_ and Crom like this.
  4. Jun 3, 2013 at 1:06 PM
    #4
    Brunes

    Brunes abides.

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    The 36174 pulley will replace the idler pulley. One uses a spacer and one does not (I can't remember which is which).

    No need to buy the whole arm unless it has malfunctioned beyond just the pulley...
     
  5. Jul 8, 2013 at 6:39 AM
    #5
    rizzo20

    rizzo20 Active Member

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    just for clarification 36174 will replace the Tensioner pulley? I'm confused :D
     
    Manfred likes this.
  6. Jan 8, 2014 at 7:17 PM
    #6
    udelslayer

    udelslayer Well-Known Member

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    Resurrecting this thread:

    Has anyone replaced the entire tensioner? The three bolts on the front look straight forward, but is the hidden bolt behind it a pita? I cant find the procedure for this. Is it that straight forward? The linked thread is for the V6. I'm working on the I4, 2.7.
     
  7. Mar 31, 2014 at 12:49 AM
    #7
    BeeRadd

    BeeRadd ANTI-DARK

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    This thread helped me! The link to the FJ cruiser forum write up is perfect. Not as hard to do this as I thought
     
  8. Apr 14, 2014 at 2:01 PM
    #8
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Great find. I did my pulleys and alternator but got scared about the tensioner looks pretty straight forward what are the bolts holding the ac unit and tensioner?
     
    Last edited: Apr 14, 2014
  9. Apr 14, 2014 at 2:05 PM
    #9
    XXXX

    XXXX Well-Known Member

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    I have a picture of all the torque values and part numbers in my TW album.

    1) Loosen pressure on belt with 3/8" ratchet and insert screwdriver/awl into center of tension arm to release pressure.

    2) Remove belt

    3) change pulleys

    4) have fun reinstalling belt correctly (hardest part for me) :D

    5) wave at the people changing the tension arms when it's not needed
     
    Rudyp.27 likes this.
  10. Apr 14, 2014 at 2:13 PM
    #10
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Y would you wave at them? :rolleyes:
     
  11. Apr 14, 2014 at 2:16 PM
    #11
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    I drew a diagram before I removed the belt so I wouldn't f-up the install. It's absolutely ridiculous that Toyota didn't put the belt diagram under the hood :mad:
     
    Volunteer and Crom like this.
  12. Apr 14, 2014 at 2:19 PM
    #12
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Very true i just went back to internet and printed out pulley design. I had the belt going the wrong way before i double check with the sheet.
     
  13. Apr 14, 2014 at 2:22 PM
    #13
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Anybody done there crank Pulley( harmonic Balancer) ??
     
  14. Apr 14, 2014 at 2:22 PM
    #14
    XXXX

    XXXX Well-Known Member

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    Because its a shit load of work taking 3-4hrs when all that's typically needed is a 5 min pulley swap. Also cost 10x more.
     
  15. Apr 14, 2014 at 2:24 PM
    #15
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    Do you know the pulley number??
     
  16. Apr 14, 2014 at 2:27 PM
    #16
    XXXX

    XXXX Well-Known Member

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    Yea. On my way home now. Post it in a little.
     
  17. Apr 14, 2014 at 2:28 PM
    #17
    Manwithoutaplan

    Manwithoutaplan the full Monty

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    :popcorn:

    Get on it philly boy


    Lets go Rangers !!!! :p
     
  18. Apr 14, 2014 at 2:37 PM
    #18
    XXXX

    XXXX Well-Known Member

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    Oh you want the wrong part number. Np
     
  19. Apr 14, 2014 at 2:38 PM
    #19
    Manwithoutaplan

    Manwithoutaplan the full Monty

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  20. Apr 14, 2014 at 4:00 PM
    #20
    XXXX

    XXXX Well-Known Member

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    [​IMG]

    Tension pulley is a No.1 36174.

    Go Sharks!!!
     
    Last edited: Apr 14, 2014
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