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  1. #1

    Join Date
    Mar 2009
    Montgomery, AL

    RXP Compression PSI values?

    2004 RXP...what are the nominal PSI values for the cylinders during a compression test and under what circumstances...i.e. warm engine etc.

    Also at what PSI should I begin to become concerned that the timing is off or other problems are present with the motor?

  2. #2
    wotxxxsd's Avatar
    Join Date
    May 2012
    Best way to check if the motor is good is a leak down test. 20% or less is good.
    Compression should be 130-150 in each hole.
    Carbon build up can affect #s.
    Warm or cold motor for compression #s

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