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Bolts on the end cap camshaft bearing. 91 integra.

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  • Bolts on the end cap camshaft bearing. 91 integra.

    So, for the past few days I have been trying to replace the cylinder camshaft seal(I guess that is the name). In order to do so, I removed the camshaft bearing number 6 exhaust. While tightening the bolt, the ones outside the valve cover, one snapped in half leaving once piece that I took out by hand and the other piece stuck flush with the head. I eventually got it removed and obtained a new bolt. The second time I tried to tighten it, the other one outside the head snapped, same exact scenario. I had that one removed and replaced. Now, the third time I try to install it, I torque the bolt inside the head with 25 in-lb and they both snap. I am starting to think these bolts are one time use or just old? What are your thoughts?

  • #2
    Where did you get the new bolts?

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    • #3
      Well, they are indeed old and brittle... I've seen cam-rail bolts stretch and no longer hold proper torque.

      Also, if your torque wrench isn't dead-on, it is very easy to over-torque a bolt so small. 25in-lb is barely 2ft-lb... I'm betting its a little of both scenarios.

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      • #4
        Originally posted by unified112 View Post
        Well, they are indeed old and brittle... I've seen cam-rail bolts stretch and no longer hold proper torque.

        Also, if your torque wrench isn't dead-on, it is very easy to over-torque a bolt so small. 25in-lb is barely 2ft-lb... I'm betting its a little of both scenarios.
        X2.. it is never adviseable to re use previously torqued bolts they tend to stretch, and over time definitely lose their tensile strength when removed...

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