LRO: Valves

From: A. P. \ (rover@pinn.net)
Date: Mon Apr 16 2001 - 13:08:02 EDT

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    "Jim Hall" <jimfoo@qwest.net> wrote:

    >I imagine it is also responsible for #3 & #4 header pipes glowing a dull
    >orange in the dark? Sloppy valves=exhaust leaking past valve?

    Right...fuel/air mix is being partially expelled during the compression
    stroke and is actually combusting in the header rather than within the
    confines of the cylinder.

    The machinist I took the head to for resurfacing said I had less than a
    dozen miles before *catastrophic* failure as a result of the wedge-shaped
    crack in #4 exhaust. Timing is everything.... ;-)

    Cheers

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