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Thread: MFI Adjustment Question

  1. 12-22-2017, 07:31 AM #1
    gkahrs
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    MFI Adjustment Question

    My newly rebuild engine acts like it is fuel starved above about 4 or 5K RPM's (loss of power, missing). When the engine is not completely warmed up it almost runs fine, but when fully warmed out, it is very noticeable.
    It is a '73 S build to 2.7L specs. The pump was rebuild by Robert Fairchild and has the S cam but not the RS cam. It otherwise starts, runs and idles fine. Can this be fixed with a simple adjustment or will the pump need to come off?
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  2. 12-22-2017, 09:49 AM #2
    72targa
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    Please review "Check-Measure-Adjust" here for starters...

    http://www.pelicanparts.com/techarti...MFI/TipMFI.htm
    Peter Kane

    '72 911S Targa
    Message Board Co-Moderator - Early 911S Registry #100
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  3. 12-22-2017, 12:48 PM #3
    edmayo
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    There are a hundred possibilities starting with simple linkage adjustments to Cam and pump timing, where would you like to start?
    Early S Registry member #90
    R Gruppe member #138
    Fort Worth Tx.
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  4. 12-22-2017, 12:57 PM #4
    gkahrs
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    Great. That's what I was afraid of. I will let the experts sort it out.
    Thanks.
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