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Thread: Faulty tach.

  1. #1
    Senior Member Bullitt's Avatar
    Join Date:  Sep 2011

    Location:  Sirevåg, Norway

    Posts:    212

    My VIN:    01598

    Club(s):   (DCH)

    Faulty tach.

    My tach suddently stopped working. Jumps from below zero to 4000. Checked pin 12 and 13 in the cluster with a test light. Everything was ok there. The light got brighter as I floored it. The circuit board in the cluster looks fine (tried with bigger washers around the tach nuts just to check) What is your bet, tach or circuit board? https://cloud.tapatalk.com/s/5cf2827e...V_2013_000.mp4

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    Svein Apeland

    1981 DMC DeLorean DMC-12, VIN: 01598. Gas flap hood, manual transmission, black interior, wide stripe, galvanized frame, Spax shocks and UK club exhaust.
    x1973 Plymouth Road Runner
    x1979 Pontiac Firebird Trans Am
    x1975 Chevrolet El Camino
    x1974 Plymouth Satellite Sebring
    x1966 Lincoln Continental
    x1983 Porsche 944
    x1982 Porsche 944

  2. #2
    Administrator Ron's Avatar
    Join Date:  Jun 2011

    Location:  North GA

    Posts:    6,176

    Club(s):   (SEDOC) (DCUK)

    Sounds like the tach since #9 feeds the working oil pressure gauge too. But I'd try to check it right off of the tach's terminals...or pull the tach and feed it right off the coil.

    Check out this thread:
    http://dmctalk.org/showthread.php?8587-Tachometer-Info

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