Date:         Fri, 20 Apr 2007 13:48:09 -0700
Reply-To:     Mark Drillock <drillock@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mark Drillock <drillock@EARTHLINK.NET>
Subject:      Re: Jerks/surges when going from coasting to acceleration
Comments: To: Martin Jagersand <jag@CS.UALBERTA.CA>
In-Reply-To:  <e3e1d7f0704201112j30e8c1d2nc260241bcb94db13@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii; format=flowed

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/
>