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mallory 6a cdi failure

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    mallory 6a cdi failure

    one of my customers has just had a mallory 6a cdi ignition system fail on him.

    the red light flashes 3 times with ignition on , and continues to pulse while cranking to say theres an ignition signal , but no spark . i checked with another coil and still no spark , the coil he has is the correct coil for the cdi (also did primary and secondary circuit resistance checks) , i checked the powers and earths and they are all fine , i also tried earthing out the (white) trigger wire and removing it from earth to get it to trigger a spark , but no go , i hear a faint buzzing coming from inside the mallory when the trigger wire is being earthed and removed.

    anyway this ignition system is only about 2-3 months old and he has been driving the car around since it has been installed . he has had a really bad string of luck with failures on the dyno , and this has been the last one ,now noone can blame a dyno tuner for an ignition system failing .. hes been trying to get this car dyno'd on high boost for months only to have something fail almost everytime on the dyno . the tuner checked by putting as generic coil and ignitor on and got spark , although the car didnt run properly , because the two ignition systems trigger on a different edge of the ignition waveform.

    Now the fucked part is the supplier says , the quickest fix is to buy another cdi , they send his away for a warranty claim , if they deem its not a wiring error (which ive double checked and it isnt) they will repair it under warranty and send it back , if they deem that it isnt warranty for whatever reason , we have to pay for the repair and freight charges . then he will own 2 cdi's !! hes talking about getting it fixed anyway and selling it to recover some of the cost of buying another.

    anyway aside from my story , do these have any sort of history of failure ? the supplier said they found it odd the cdi had failed , considering its full of resistors and diodes and capacitors and chips , i dont find it that hard to believe it has failed..

    ...
    Mobile Suzuki Specialist : www.facebook.com/suzukimechanic . Please like/share my page.

    #2
    The capacitors can fail or dislodge from the board is some CDI's, ive never worked with a mallory though. I have seen it with an MSD and a Motec (M&W).

    EDIT: It's worth noting the Motec unit was 10 years old and had lived all its life in a AU V8 supercar that was a main game car then a fujitsu series car, the MSD on the other hand was in a street car and around 3 months old. Both units were rubber mounted.
    www.DRIVENFX.com Performance Engine Building, Auto Electrical (Wiring Looms, ECU Installs, Diganoses and Repair), Custom Automotive Electronics, Car Preparation, Car Setup, Trackside Services,

    PM me for more info

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      #3
      Is it a sealed unit? Can it be opened?
      Want me to have a quick look at it and see if there's anything obvious that can be repaired easily?
      Auto Electrical Accessory fitting in Brisbane!

      http://securityandaudio.hopout.com.au

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        #4
        ok , just had another unit fail today after he had driven the car for another 1000 kms after a low boost tune . went on the dyno for the high boost tune and it appears the 6al has failed once again. can anyone give me some insight why it keeps failing. the unit is nowhere near any heat source or vibration.

        if you are still around steve id appreciate if you can take a look inside the unit to see what part has failed and why.
        Mobile Suzuki Specialist : www.facebook.com/suzukimechanic . Please like/share my page.

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          #5
          Cause they are shit... Put a pro -10 M&W and your problems will go away
          im a cunt
          and apparently i dont know shit...

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            #6
            Vaguely recall something about Mallory's taking a dump if you don't use the correct pickup...
            "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

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