Re: [T3] Alfa Romeo's distributor

[Hal Sullivan <tristessa@pon.net>]

<x-flowed>At 01:42 PM 1/25/2004 -0600, Jim Adney wrote:
> On 24 Jan 2004 at 22:50, Hal Sullivan wrote:
> > I did try .040" at one point (with no other changes) and it ran like
> > crap.  I went back to .035"
>
> Interesting that the threshold would be right there. Be aware, however 
> that the
> breakdown voltage will go up as the corners of the spark plug electrodes get
> rounded off; this is the main reason that plugs have to be changed.

I don't know if the absoulte threshold is right there, but it was certainly the
threshold with new W8AC plugs in a too-rich-running, too-high-compression 
(roughly
9.3:1) 1776cc T1 with bad valve guides and massive blowby past the rings. =)

FWIW, the plug gap for the W/C VW's with this ignition ranges from 
.024"-.035",
depending on year and engine code.  I seem to remember reading that some of 
the
Mexican T1's used the same ignition system; I wonder what the gap is for 
those..

Anyway.

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