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Thread: Are 4AGE head bolts supposed to use washers?

  1. #1
    I see invisible people Backyard Mechanic WHITCHY's Avatar
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    Default Are 4AGE head bolts supposed to use washers?

    Well after leaving my old bigport head to sit upside down on my garage floor since I removed it, I just flipped it over to move it and what the hell do I see on my floor, but a hole lot of valve buckets,as expected, and a heap of washers???, I spent a few minuites sussing out if they came from under the bucket, but no, couldn't see anywhere else untill I looked into the valley where the head studs go to find identical washers!
    Is this the case, do the head bolts use washers? or did the washers just fall into those spots and my head gasket keeps blowing because my motor is fucked?
    I was just about to go out and re-build a whole new motor because I just couldn't get my headgaskets to seal!so if this is the case it will save me a shitload of money!
    Cheers.
    -Whitchy-

  2. #2
    what? Automotive Encyclopaedia EVOSTi's Avatar
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    Default Re: Are 4AGE head bolts supposed to use washers?

    yes they have washers, nearly all headbolts use washers.

  3. #3
    jzx100 fan boy Domestic Engineer slide86's Avatar
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    Default Re: Are 4AGE head bolts supposed to use washers?

    definetly should have the washers under the head of the bolt.

    when you torque the bolts up, you should also put some oil onto these washers so you get the correct torque. the head of the bolt needs to run smooth over these washers and not bind up.
    Quote Originally Posted by The Witzl
    Please visit here, they will have all the answers you need for this "conversion" - www.hot4s.com.au

  4. #4
    back into it Chief Engine Builder
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    Default Re: Are 4AGE head bolts supposed to use washers?

    so you know why! the head is alloy and the bolts are steel. in this situation were there is any type of movment and or pressure the steel will compress or wear into the alloy, reducing the clamping load! the washers spread the load over therr area so the whole joint is a solid joint that reduces the chance of backing of the torque setting.

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