Date:         Sat, 21 Apr 2007 03:09:57 -0600
Reply-To:     Martin Jagersand <jag@CS.UALBERTA.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Martin Jagersand <jag@CS.UALBERTA.CA>
Subject:      Re: Jerks/surges when going from coasting to acceleration
Comments: To: Mark Drillock <drillock@earthlink.net>
In-Reply-To:  <46292709.2060906@earthlink.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Thanks for the tip. Indeed it is an US spec FI engine.
I'll try to unplug the throttle switch and see what happens.
What does the switch control anyway?

I was also wondering where to lubricate to make the mechanical cabling
smoother in general?

Thanks,
Martin

On 4/20/07, Mark Drillock <drillock@earthlink.net> wrote:
>
> Martin, if this is a FI engine you may have a problem with the throttle
> switch sticking. You can unplug the connector from the switch harness
> and see if it helps.
>
> Mark
>
> Martin Jagersand wrote:
>
> > Hi,
> >
> > In the '85 Westy I'm getting a bit of surging and
> > a jarring ride when going from coasting to acceleration and
> > vice versa.
> >
> > I'm suspecting a combination of loose axial springs in the clutch
> > and slightly sticky throttle. It is difficult to step gently
> > enough on the pedal to get a smooth engagement of power.
> >
> > I had a similar problem on a Diesel several years ago and solved
> > it by slightly changing the attachment angle of the throttle cable.
> > (so more cable pull is required for a particular accelerator motion)
> >
> > Tried the same here (though cable bracket won't move very much due to
> the
> > starter), and tried to lubricate the throttle shaft. But I only
> > got marginal improvements.
> >
> > Any other suggestions? (I'm not about to pull the clutch though)
> >
> > The later diesels have a small gas shock damping the motions
> > of the accelerator. Do you think this is a good idea?
> > Ideas for jury-rigged substitutions?
> >
> > Thanks,
> > Martin
> > --
> > Martin Jagersand
> > University of Alberta
> > http://www.cs.ualberta.ca/~jag/
> >
>
>


--
Martin Jagersand
University of Alberta
http://www.cs.ualberta.ca/~jag/