----- Original Message -----
From: "it.answers" <it.answers@blueyonder.co.uk>
To: <JERTIGGER2@cs.com>; <smarc@abs.net>; <mgs@autox.team.net>
Sent: Monday, April 08, 2002 6:53 PM
Subject: Re: problem w/ 25D distributor
> It is always vacuum advance - with vacuum applied the timing is advanced.
> As pollution controls came in the pipe from the vacuum capsule was moved
> from a port on the carburettor to one on the manifold, which meant that
the
> capsule gave maximum advance at idle instead of zero advance, but it is
> still a vacuum advance capsule.
>
> Without it you will lose cruising MPG. If the diaphragm is punctured as
> seems the case you will also be upsetting the mixture balance between idle
> and running.
>
> The capsule will have to be replaced as a unit, or at the very least the
> port it is connnected to must be plugged.
>
> ----- Original Message -----
> From: <JERTIGGER2@cs.com>
> To: <smarc@abs.net>; <mgs@autox.team.net>
> Sent: Monday, April 08, 2002 2:48 PM
> Subject: Re: problem w/ 25D distributor
>
>
> > > I was a bit suspicious about that rusty looking dashpot on the
> > > side of my disty, and thought I ought to have more pick up than
> > > I do. I pulled the cap off to see if the vacuum advance mechanism
> > > was frozen, but it moved freely. I hooked a hand vacuum pump up
> > > to it, but got no movement. In fact, I couldn't even draw a
> > > vacuum. It's not the hose, so it must be the dashpot.
> > >
> > > Can I repair/replace the dashpot, or should I be looking to
> > > replace the whole assembly? I have no experience with distributors,
> > > other than changing points, etc...
> >
> > If it is a 25D the device may be a vacuum retard diaphragm, not vacuum
> > advance. This is for smog control and is not necessary if you don't need
> to
> > be tested.
/// or try http://www.team.net/cgi-bin/majorcool
/// Archives at http://www.team.net/archive
|