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Valve Cover Bolting

Discussion in '1st Gen Tundras (2000-2006)' started by kbuild, Jun 23, 2018.

  1. Jun 23, 2018 at 1:57 PM
    #1
    kbuild

    kbuild [OP] New Member

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    anyone have specs for torque for v6 4liter cover bolts?
     
  2. Jun 23, 2018 at 2:02 PM
    #2
    Professional Hand Model

    Professional Hand Model Fred Brookes

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    No sir. They do need snugging every couple years due to contraction and expansion. I snug mine by feel a little at a time alternating to each bolt in a random zig zag pattern to keep the compression equal.
     
  3. Jun 23, 2018 at 2:32 PM
    #3
    Casper421

    Casper421 Adventure in a 1st gen

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    According to Haynes, they’re 80 in-lbs. around 6-7 ft-lb.
     
  4. Jun 24, 2018 at 3:11 PM
    #4
    kbuild

    kbuild [OP] New Member

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    Thx for quick response. I was guessing at least 55 in-lbs. I'll set them at 80 and keep an eye on them over time.
     
  5. Jun 26, 2018 at 5:01 PM
    #5
    Need to know stuff

    Need to know stuff New Member

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    Could that be why my valve cover gasket is leaking? Or just a bad seal?
     
  6. Jun 27, 2018 at 4:25 AM
    #6
    Professional Hand Model

    Professional Hand Model Fred Brookes

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    Tighten those bolts up carefully and we shall find out. Probably the gasket is old, but I’ve tightened mine about 3 times in 6 years. First time was because I noticed the leak. Second and third time was prevent maintenance. Believe its 16 bolts 10mm. A couple of bolts it is better to have a longer extension for the socket reach. Or, a short throw 10mm wrench. Just alternate the bolts a little at a time. Some may be looser than others. Let us know how it goes!
     

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