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Thread: Straightening warped aluminum valve and chain covers

  1. 04-12-2017, 06:53 AM #1
    718RSK
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    Straightening warped aluminum valve and chain covers

    Hi,

    What is the preferred way to straighten warped alu intake and chain covers? Mine are pretty bend. I was thinking of torquing them with some shims to get the worst bends out and after that putting them on the mill.

    Thanks,

    JK
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  2. 04-12-2017, 04:42 PM #2
    ajwans
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    There's a post on here by Paul Abbott (1quickS), he described milling a little more material from the centre of the valve covers than from the edges, thereby creating a spring effect where torquing down the middle would pull the ends down hard also.

    http://www.early911sregistry.org/for...l=1#post909765

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  3. 04-12-2017, 06:17 PM #3
    gled49
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    Once the covers are flat, mostly the lowers I use the thin gaskets with the silicone bead. The covers don't warp like they do with the thick black gaskets. G.Led
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