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Engine vacuum readings

Discussion in 'XJ Technical Chat' started by Stroker, Jul 22, 2018.

  1. Stroker

    Stroker New Member

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    Hi.

    Can anyone tell me what kind of vacuum readings at idle that a aircooled xj700 should have?
     
    Stroker, Jul 22, 2018
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  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Equal on all cylinders when you synchronize the carbs.
    There is no spec given. Ignore the guidelines on vacuum gauges. Those don't pertain to inline fours.
    If you have concerns about the rings or valves, do a compression test followed by a leakdown test.
     
    k-moe, Jul 22, 2018
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    Stroker likes this.

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