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Valve adjustment 1GR-FE

Discussion in 'Technical Chat' started by Terminous, May 29, 2010.

  1. May 29, 2010 at 3:24 PM
    #1
    Terminous

    Terminous [OP] Member

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    San Joaquin Delta, Ca
    Vehicle:
    Stock 05 Prerunner
    I have a valve train ticking sound. I shimmed the PWM valve with rubber washers and still have the noise. I spoke with my local Toy service manager and he told me there is no valve adjustment listing for this engine. Mmmmm..... I found the adjustment specs in my owners manual! Has anyone done a valve adj. on this engine? Specificily, does the engine use shims, or is it a straight adjustment?
     
  2. May 29, 2010 at 3:25 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    FlimFlubberJAM
    Tenoe, AZ
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Its a shim under bucket design. Shouldnt need adjusting for 100k miles, or longer.
     
  3. May 29, 2010 at 8:27 PM
    #3
    Terminous

    Terminous [OP] Member

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    San Joaquin Delta, Ca
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    Stock 05 Prerunner
    Ya, I'm at 98,420 mi. I hear the injectors can make some noise also. Do you know if they also sound like a loose valve?
     
  4. May 29, 2010 at 8:28 PM
    #4
    Terminous

    Terminous [OP] Member

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    Vehicle:
    Stock 05 Prerunner
    is the injector lash adjustable also? I think I need a manual.......
     
  5. May 29, 2010 at 8:33 PM
    #5
    BakoTruck

    BakoTruck Well-Known Member

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    Herbie Hancock
    Bakersfield, CA
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    05 PreRunner TRD
    Mostly stock for now, I have added a cb radio, various cheap mods and I plan on adding aftermarket wheels and other items in the future.
    Famous last words around here. lol
     
  6. May 29, 2010 at 8:43 PM
    #6
    whippersnapper02

    whippersnapper02 Well-Known Member

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    Christian
    Yorba Linda, CA
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    Banks Monster Exhaust, Pop n Lock tailgate lock, Hook-Ups tie down brackets, USA Spec Ipod adaptor, WO seat covers, color matched grill with Grillcraft insert, Tuffy locking bed box
    Injector lash adjustable?

    You are probably hearing the noisy emissions valve.
     
  7. May 29, 2010 at 9:39 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    The tacoma engines are noisy by nature. Not alot (if any) sound supression is built into them like most other vehicle engines. Lots of things to make noise too. Timming chains (3 total in the 1 GR-FE), injectors, valves, VSV, etc. Its an all aluminum engine, so it transmits the noise very efficiently.
     
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