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Old 03-24-2006, 06:34 AM
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Timing Retard

I have found an article on the web that says the gm 5 pin module which was used on caddy etc. in the early 80's can be used as a timing retard, by connecting the "r" terminal to a switch to ground at startup,which will retard the timing 10deg, then switch back for running. I am running a 454 with HEI in my 55 when I set the timing to 12deg inital it runs great , but will not start when hot,if I set it at 8 deg it will always start but does not have the snap.Has anyone herd of this being done?

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Old 03-24-2006, 09:08 AM
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I've never heard of the module thing before but I can tell you that you shouldn't have problems starting at 12 BTDC. Have you verified the balncer mark is correct? Any way you can wire you ignition and start sepertly so you can get the thing cranking before you flip the ignition on. That's the way I do in our race cars but may not be practical for you.
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Old 03-24-2006, 09:19 AM
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Pas... I think your issue my be heat in the starter. What I would do is get the engine up to temp, pull the hot wire off the HEI and see if it turns the engine over. If it cranks over slow then its not not your ignition... its your starter.

just somthing to try...
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Old 03-24-2006, 10:03 AM
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I am using the remote solenoid and it seems to be ok most of the time, if I shut it off and restart right away it is ok, leave it a min. or two and it will kick back on the starter. I have used TDC and the balancer is ok.It seems that only a couple of deg make quite a difference.I have the springs in the dist set to start coming in at 1000 RPM and full in at 3000 RPM. I am using ported vacuum for the advance.
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