Retighten head bolts?

Discussion in 'Engine/Drivetrain' started by mldave, Oct 19, 2010.

  1. mldave

    mldave Newbie

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    On my 86 Toyota truck 4x4 2.4 EFI..suppossed to be a new engine..now have 1100 or so miles on it.Do the head bolts have to be retightened on it?
     
    mldave, Oct 19, 2010
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  3. Litneon

    Litneon Super Moderator Staff Member

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    I've never heard of this, if they were torqued to the proper specs originally, they should be fine.

    It's just a stocker right?
     
    Litneon, Oct 19, 2010
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  4. V8_TITAN

    V8_TITAN Toyotaholic

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    I retorque mine... its a simple task so why not...
     
    V8_TITAN, Oct 19, 2010
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  5. ShoNuff

    ShoNuff Toyotaholic

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    after installing a new head gasket you heat cycle the motor then re-torque.


    there should be break-in instructions with the motor, or the builder could tell you.


    but the motor should be broke in by now with 1kmi.
     
    ShoNuff, Oct 19, 2010
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  6. Litneon

    Litneon Super Moderator Staff Member

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    Interesting, never knew that. What do they do from the factory? And does this apply to all engines?
     
    Litneon, Oct 20, 2010
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  7. ShoNuff

    ShoNuff Toyotaholic

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    every car is tested from the factory, couple miles or so i bet.

    but theres break-in instructions that come with a new car.



    not sure about all motors, but for 2Xr's ya. says so in any instructions ive read, its even in the writeup
     
    ShoNuff, Oct 21, 2010
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  8. B.Y.E.

    B.Y.E. Toyotaholic

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    If you do re-torque them headbolts, please take the extra time to check your valve lash aswell... :cool:
     
    B.Y.E., Oct 21, 2010
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  9. dillinja666

    dillinja666 Toyotaholic

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    ive done lots of head gasgets at work and i have never heard of having someone come back to get the bolts re-torqed. this isnt only for toyota but every make ive done....

    i think the reason that there is a certain pattern to torq the bolts in eliminates the need for a re-torq after 'x' amount of mileage/heat cycles.
     
    dillinja666, Oct 22, 2010
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