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Serp belt and pulleys

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Knute, Sep 29, 2020.

  1. Sep 29, 2020 at 5:57 PM
    #1
    Knute

    Knute [OP] Well-Known Member

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    My truck previously lived on gravel road. It has 109 kmiles. Its due for a belt replacement and other 100 kmile maintenance.

    Knowing the previous history and the abrasive nature of gravel dust, I'd like to replace the belt, tensioner and both idlers. I plan on a DIY project.

    I checked prices at the local Toyota dealership. OMG!!!! Just the tensioner is $145. I looked at RockAuto, they have a "kit" with everything from ACDelco or Gates for $186.

    My question is about the reliability of the ACDelco or the Gates as a comparison to OEM.
    Has anyone used either the ACDelco or the Gates "kit"?
    Is access to the tensioner and idlers difficult on a 4L V-6?
     
  2. Sep 29, 2020 at 5:59 PM
    #2
    Bishop84

    Bishop84 Well-Known Member

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    Gates are a better brand choice.

    I would 100% change the 3 idlers and 1 tensioner pulley with a new belt using gates and a bando belt.

    OEM does not sell the tensioner bearing on its own and you have to buy the whole arm. Each idler is usually 80$+

    Edit, I see the complete tensioner is with the kit, but you can just remove the pulley.

    Otherwise its a huge job, you have to remove the a/c and the alternator to change the tensioner arm.
     
  3. Sep 29, 2020 at 6:13 PM
    #3
    igno1tus

    igno1tus How does this site know about everyone's member ?

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    Anyone have pn’s for the tensioner and pulleys and belt ?
     
  4. Sep 29, 2020 at 6:16 PM
    #4
    Knute

    Knute [OP] Well-Known Member

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    This is for the Gates Kit from RockAuto.

    upload_2020-9-29_20-16-41.jpg

    I'm leaning towards the Gates kit.

    Are you sure about removal of the A/C and the alt??
     
    igno1tus likes this.
  5. Sep 29, 2020 at 6:27 PM
    #5
    igno1tus

    igno1tus How does this site know about everyone's member ?

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  6. Sep 29, 2020 at 6:30 PM
    #6
    Bishop84

    Bishop84 Well-Known Member

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    Yes, its a bear, the tensioner arm doesnt usually fail, so take the bearing off and save the tensioner arm.

    The a/c bolts onto the tensioner, I believe the alternator has to be loosened at the very least. It's not worth it unless theres an issue.
     
  7. Sep 29, 2020 at 6:43 PM
    #7
    JCzerosixtaco

    JCzerosixtaco Active Member

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  8. Sep 29, 2020 at 7:00 PM
    #8
    Knute

    Knute [OP] Well-Known Member

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    Thanks for the feedback, guys.

    I'll be going with the Gates Kit. I'll suffer the PIA to replace the tension assembly. I don't mind pulling bolts and loosening components.....it's just part of the process with cramped engine bays. The days of big engine bays like on my '71 Buick Electra 225 with the 455 cu.in are gone. I recall sitting on the radiator shroud with my feet on the valve covers working on the Rochester Quad. Many times I climbed into the engine bay on that land yacht.

    In my professional life as a mechanical engineer, I have learned the importance of proper belt tension, pulley alignment and the detrimental impact of worn pulleys. A shredded belt with a blown pulley bearing on boondock highway needing a tow......is just too expensive in comparison.

    BTW, the best source for bearings is the local Power Transmission Shop, these are the guys who sell pulleys, belts, gears, bearings.....anything dealing with power transmission. They will have quality bearings, SKF, FAG, INA, Koyo, Torrington......
     
    Habsdoc12 and fixer5000 like this.
  9. Sep 29, 2020 at 11:47 PM
    #9
    fixer5000

    fixer5000 the logical one

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    thats a fact not many know about and should..
     

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