Re: Marelli plex

[Jon Pike <jhpike@domain.elided>]

Hmmm... a possibility,  at least to blow parts.. not neccicarliy to 
cause lights to go bright..

BTW... it wasn't me who started the thread...

Ed & Marsha Prytherch wrote:


> Jon:
> It is possible that the starter solenoid is generating a big voltage spike
> when it de-energizes. This would explain the fact that your ignition fails
> when you try to start the engine. You can buy a 5 amp diode from radio shack
> and connect the end with the bar to the solenoid and the other end to
> ground. This will sink the electrical energy to ground when the starter
> solenoid unloads.
> I doubt that your problems are caused by the charging system. I think that
> your ignition would fail when the engine was running if that was the case.
> Ed Prytherch
>
>  
>
> > I am using Marelli Plex ignition on a 73 gtv. Since buying the car 5
> >    
> months
>  
>
> > ago, I have gone through 2 new ignition control modules! The first one
> > lasted one week and I put its failure down to a faulty unit, but a second
> > unit has just failed. I am fitting it with the heat dispersion contact
> > grease as supplied. On both occasions the failure has occurred after I
> >    
> have
>  
>
> > stopped the car - when I go back to start it again it doesn't start. The
> > only other electrical peculiarity is that sometimes my headlights are very
> > bright for short periods of time (voltage regulator malfunction?) - not
> >    
> sure
>  
>
> > if this may be connected but I thought that I would throw out the
> > information. Any suggestions what might have caused the failings of the
> > control module would be greatly appreciated. I would love to avoid the
> > replacement of unit number 3.
> > Thanks in advance,
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided