Date: Tue, 16 Nov 2010 11:15:10 -0800
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Accelerator linkage is sticky..
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sounds to me like there is resistance to really taking it apart and
lubing/cleaning each part.
actually ..it's not very hard to remove the front part of the cable where it
slides through the white plastic tube in the forward half of the van's body.
I consider it a normal service operation to do that.
and blow out that tube with compressed air,
and feed the cable back in adding lube as you slide the cable in.
when the front half is out ..
it's not hard to make sure the rear half is sliding nicely too ...where the
inner cable slides in the outer black cable, at the rear.
the bell crank that operates the cable under the floor in front ..
that area needs to be well lubed and not badly worn.
It's usually not necessary to change the ratio of response to gas pedal ..
but consider that ....either at engine end or in the front.
throttle body return spring pressure is a factor too. Sometimes it's
unnecessarily high.
how does one 're-do' any given system anyway ?
Who would ever think to take it apart, inspect it carefully, identify the
weak design factors, or worn out parts ...then correct all those things, and
reassemble it carefully, and well-lubed and adjusted ??
not even any electrons involved.
----- Original Message -----
From: "Alistair Bell" <albell@SHAW.CA>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, November 16, 2010 9:34 AM
Subject: Re: Accelerator linkage is sticky..
> The linkage/cable is shown in chapter 20 of the Bentley manual.
>
>
> I recall the accel cable on a stock diesel system curving up at the
> rear to go into engine compartment, that might be a wear area.
>
> Another thing to watch is how your cable is attached to the throttle.
> Do you have the plastic cam in place? The varying lever arm with the
> cam helps in the "tip in" part of throttle application.
>
> And at the TB again, check the throttle shaft for wear.
>
> And the old answer has to be put in here, check adjustment of
> throttle position switch.
>
> alistair
>
>
>
> On 16-Nov-10, at 7:32 AM, Don Hanson wrote:
>
> My gas pedal has become a little 'touchy' lately. Manual tranny
> with an
> inline motor. I have checked and lubricated (with the SA Besto spray
> lube
> 2000 product I like) the portion of my accelerator linkage in the engine
> compartment and above the tranny. Also, I've lubed the pedal and the
> linkage above the spare tire carrier. Operating that portion of the
> system
> by hand, it feels perfectly smooth..and in the past it has been quite
> satisfactory. I changed nothing with that system when I recently
> 'revised'
> my motor.
>
> When coming off 'no throttle' at slower speeds in traffic, it is
> somewhat difficult to feed in just a little throttle slowly and
> evenly....I
> carefully depress the accelerator pedal but it seems to 'stick' a bit
> and
> then 'release' and cause more sudden throttle than I would like.
> This is
> no problem in most situations, but when 'plonking around' a parking
> lot or
> inching ahead in traffic, it is irritating to be unable to smoothly
> add just
> a little throttle in my lower gears without the van wanting to 'jump
> ahead...a little' I have taken to 'slipping the clutch' to control it's
> tendency to jump/lag/jump.....I'm thinking I might need a new
> accelerator
> cable at the worst, or possibly just to lubricate my current one.
>
> So, I've been at both ends of the system, and squirted the
> linkages but
> where do I get "into" the accelerator cable housings? Can someone
> guide me
> here, if there is any 'tricks' to this process? I want to get this done
> before we have our first snow (maybe very soon here in the Pac. NW)..The
> Vanagon I own is difficult enough to keep traction with without having a
> jerky accelertor linkage to contend with.
>
> Thanks, Don Hanson
