[DMCForum] Re: Dwell Angle Defined

["content22207" <brobertson@xxxxxxxxxxxx>]

"Dwell Angle" -- the amount of time ignition is grounded before losing
it to build up HT charge. Called "angle" because it's measured in
degrees of distributor rotation. Too little dwell angle results in a
weak spark. Too great an angle can damage ignition components. 

Dwell angle used to be adjusted by physically separating contact
points (opening or closing the gap between them). Breakerless
ignitions adjust themselves (ground is lost within the module).

BTW: I do prefer breakerless ignition over points. Coil packs suck,
however.

Bill Robertson
#5939 

>--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski - DMUK
<martin@xxxx> wrote:
> No - I was replying to the question of whether the output can be scoped 
> - nothing to do with dwell angle - what is that anyway? suspect it's an 
> american term
> 
> Martin
> 
> cruznmd wrote:
> 
> > The manual definitely says dwell cannot be adjusted-
> > I may have mis-read what value cannot be detected by an O-scope.
> > 
> > 
> > --- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski - DMUK
> > <martin@xxxx> wrote:
> >  > Been there, done it, The output is very low current but a scope
> > will
> >  > have no problems with it - but the signal itself is very dirty.
> >  >
> >  > Martin
> >  >
> >  > content22207 wrote:
> >  >
> >  > > If PRV "pulse coil" is anything like a standard hall effect
> > sensor, I
> >  > > see no reason why you couldn't attach an oscilloscope. Are you
> > sure
> >  > > the manual doesn't state that dwell angle can't be ADJUSTED?
> >  > >
> >  > > An analog volt meter can measure voltage through the sensor even
> > with
> >  > > wave forms (yet another example of older technology triumphing
> > over
> >  > > its successor).
> >  > >
> >  > > Bill Robertson
> >  > > #5939
> >  > >
> > 
> > 
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> > 
> >
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