[Gmecm] Re: Big cap HEI on 7747

[dgilbert78 at juno.com]

Hello. Ign module to pick up coil  N=white wire  P=green wire
good luck
Darryl...
On Sat, 3 Jun 2006 17:37:24 -0700 "Mark Romans" <romans at starstream.net>
writes:
> Thanks Andrew, I'll check it!
> Mark
> 
> ----- Original Message ----- 
> From: "Andrew Gibson" <andrewsharyn at yahoo.com>
> To: <gmecm at diy-efi.org>
> Sent: Saturday, June 03, 2006 5:09 PM
> Subject: [Gmecm] Re: Big cap HEI on 7747
> 
> 
> >I wasn't talking about the 4 wires from the module to the ecm. I 
> was 
> >talking about the two wires from the ignition pickup coil inside 
> the 
> >distributor to the module. If the wires are switched the timing 
> pickup is 
> >coming off the curved section of the waveform instead of the 
> vertical slope 
> >in the center. This can offset the timing by as much as 40 degress 
> and will 
> >vary greatly by engine rpm. (See the piggyback igintion module 
> discussion I 
> >started a couple of months ago.) The wires should be white and 
> green (at 
> >least off the pickup coil) I don't remember which is positive and 
> which is 
> >negative.
> >
> >  Also since you are obviously having problems and must have 
> extended the 
> > pickup coil wires to have a external module: If you need the 
> module more 
> > than 1.5" away (The length of  stock pickup coil wires) the 
> spliced in 
> > wires need to be twisted for noise reduction. (If you peel the 
> insulation 
> > off a piece of network cable you will get the idea)
> >
> >  Good luck!
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam protection around
> > http://mail.yahoo.com
> > _______________________________________________
> > Gmecm mailing list
> > Gmecm at diy-efi.org
> > http://lists.diy-efi.org/mailman/listinfo/gmecm
> > 
> 
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/gmecm
> 
>