In that case Edward,
'cheat a little' and make the switch closing happen the tiniest bit earlier
( releasing throttle from half open back to closed ) .
make sure you have some throttle cable slack,
and adjust it so even if you release it slowly back to idle,
it always makes contact.

if you make it 'too far' from zero throttle..
you can get bucking at low rpm , like say 1,200 and gentle throttle.

if it makes contact every time for sure,
and you don't have bucking at very light throttle and low rpm,
and it responds to the air idle screw on the throttle body, in a pretty
linear manner..
and it's not at either extreme of fully closed or way, way open..
you're good.
Make sure there is slack in the throttle cable too. And they need to be
lubed, Virtually every vanagon in existence that hasn't had the front white
tube in the body cleaned out , and throttle cable put back in with a nice
spray lube as you insert it ..............needs it.  That's about 90 % of
vanagons in existence.

Scott
www.turbovans.com

----- Original Message -----
From: "Edward Maglott" <emaglott3@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, August 21, 2011 6:34 AM
Subject: Re: TJ Hannink does it again! Throttle Switch Adjustment

> Thanks for the write up John.  You are right it's a great resource
> for all of us to have this info.  I am wondering if you ran into any
> issues with the adjustment related to the throttle shaft being
> worn?  That's the problem I have.  If I lift up on the throttle
> shaft, the switch works great.  In normal operation it's not
> consistent.  If I let the throttle close quickly, it works fine.  If
> I slowly ease off of it from barely open to closed, there is not
> enough momentum to nudge the switch closed.
>
> Edward
>
> At 12:24 AM 8/21/2011, John Rodgers wrote:
>>  For me, this was so good, I just had to share.
>>
>>Tim Hannink came over again this past Thursday, this time to rescue me
>>from myself. The issue was the throttle body and how to adjust the
>>throttle switch.