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Topic Review (Newest First)

  • 19-02-2012, 17:46
    57 gas
    thanks to all the inputs gone back to points as heis were crap am trying to get some cash or replacement for the new one i got frome the usa as its crap and it was a new uprated one thanks to you all chris
  • 19-02-2012, 17:32
    57 gas
    thanks to all the inputs gone back to points as heis were crap am trying to get some cash or replacement for the new one i got frome the usa as its crap and it was a new uprated one thanks to you all chris
  • 19-02-2012, 15:08
    Marc
    Maybe a needle blockage in the carb??
  • 19-02-2012, 09:27
    doorslammerpop
    Don't discount the obvious, you need to make sure that you are getting a good live feed to your dizzy, one way to make sure would be to run a live wire strait from the live on the battery to the terminal marked ing on the hei . If it fires then the live feed is the problem but if there is no spark then i would investigate further at least one problem has been eliminated. If it stated with a missfire it could be the coil breaking down or even just a dodgey live feed, don't forget that engines generate a lot of heat which sooner or later effects wiring and connections.
  • 18-02-2012, 22:28
    57 gas
    hi the problem started with missfire on two or three pots then nothing replaced modul still no spark so got a uprated hei from the us still no go this a new one conplet ?
  • 18-02-2012, 21:11
    TECHNICALTOM
    http://www.msdignition.com/pdf/WDTN_pn9615.pdf . Here is a link to a great source of information regarding distributors ,And as the above poster recommended , lots more detail s of your project would help us help you .
    And Stueee you are absolutely correct , no balast resistor with HEI , my bad .
  • 18-02-2012, 20:56
    rodster
    is it carbed or fuel injection a bit more info would go a long way, av you checked for spark or is it fuel related
  • 18-02-2012, 20:18
    stueeee
    Did the motor have an HEI on it before? when you changed the dizzy did you also change the cap? if you didn't, it could have a faulty coil.

    If it had a points dizzy before check whether you have a ballast resistor in circuit, The feed to the HEI batt connection needs to be 12V with no ballast resistor in circuit on all the ones I have seen.
  • 18-02-2012, 17:42
    TECHNICALTOM
    Because you mention HEI , I will start there , just one + wire would run this distributor the 2 nd. wire is for the Tach.Try running a temporary live wire from the battery , On the HEI I have in my hand right now ,there 5 Wires in total so 3 wires( red yellow and Black) are into the dist via the plug .so they are not easy to get wrong , the the pair of terminals go to the car , one to the Tach and the other to the ignition switch sometimes via an ballast resistor .Also is there any possibility an earth wire from the engine to chassis/battery is not as it was before you rebuilt? Maybe the problem is with the fuel system.
  • 18-02-2012, 14:23
    57 gas

    sbc hei distributor

    help have rebuilt my engine ran fine now wont start only firers now and agen have power to dissy changed diss newone still no go

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