TR flat spot at 2500 rpm | FerrariChat

TR flat spot at 2500 rpm

Discussion in 'Boxers/TR/M' started by rtpetrick, Jun 25, 2015.

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  1. rtpetrick

    rtpetrick Rookie

    Jan 31, 2004
    22
    Stillwater, Minnesot
    Full Name:
    Dick Petrick
    I have a 1985 TR. At 2500 rpms, usually in 4th or 5th gear, there is a hesitation...a flat spot...usually under a slight load, like a slight freeway rise. It is not there at 2400 rpm nor at 2600 rpm....only precisely at 2500 rpm......I've had the fuel distributors rebuilt and I think that is when this problem started, but I'm not exactly sure. Anyone out there had a similar problem?
    Regards.....Dick Petrick
     
  2. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,866
    southwest germany and thailand
    Full Name:
    romano schwabel
    I think the engine is running to lean at those rpm
    adjust a little to get the engine more rich.
    is this problem always when you go with those 2500 constantly or only when you accelerate from 2400 to 2600?
    what is when you accelerate very hard?
     
  3. rtpetrick

    rtpetrick Rookie

    Jan 31, 2004
    22
    Stillwater, Minnesot
    Full Name:
    Dick Petrick
    Thank you for your advise, Turbo-joe.
    Regards....Dick Petrick
     

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