Date: Tue, 26 Dec 2006 07:16:59 EST
Reply-To: RAlanen@AOL.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Frank Condelli <RAlanen@AOL.COM>
Subject: Re: Idle switch
Content-Type: text/plain; charset="US-ASCII"
In a message dated 25/12/2006 1:55:46 P.M. Eastern Standard Time,
LISTSERV@GERRY.VANAGON.COM writes:
The throttle valve switch has failed on my 85 Westy. This switch is located
under the throttle rather than above the throttle body as shown in the
Bentley Manual. There are no switches on top of my throttle. The part
number is 025 906 017. This number is on the plastic plate that holds the
actual switch. The actual switch has the following: Hartmann Serie 506 4A
250V~. The switch is open all the time, so I am unable to know whether it
should be NO or NC. There is a little cam on the throttle shaft with two
bumps, one that is supposed to actuate the switch at idle and another that
actuates the switch at full throttle.
If anyone knows where I can get a good replacement switch I would be glad.
Alternatively, I can get a new microswitch and adapt it to the existing
holder. If anyone would care to give me an opinion as to whether it is a NO
or NC switch I would like to hear from you. I know the 84 switches on top
are NO.
Ron, those switches are not available unless you can find a good used one.
It can usually be repaired. Are you sure it is not working is the first
question ? If not then you can gently remove the cover with the use of a sharp
utility knife blade. Go easy so as not to break the cover. Once open it will
become obvious what is wrong and you should be able to clean the corrosion
from the contacts, spring plate and push pin actuator and get the switch back
operating. Sometimes that plastic push pin seal has become swollen and will
not allow the pin to move freely, cleaning and light lube may work or
discarding that seal and covering the area with Dielectric grease may work also.
The judicious use of Dielectric grease on the switch parts is also beneficial
after you have the corrosion cleaned off. Be sure to fully understand the
location of the spring and switch plate before they jump out of place and your
left wondering how they go back. That little spring is always wanting to get
lost so be careful and working on a big white fluffy towel and the use of a
pair of fine point tweezers are advantageous. After your sure the switch is
functional you can replace that cover you removed with some plastic glue or
Crazy Glue. After you have the switch back together and operational you need
to adjust the switch plate so that the switch closes (switch is NO - Normally
Open) as soon as the throttle plate starts to move and then opens again at
full throttle plate opening. If you cannot achieve this in the normal
movement of the switch plate this is due to the plastic cam being worn. The remedy
is to bend that metal arm of the switch until you can get the switch to
contact the plastic cam and operate the switch within the correct parameters.
Cheers & Happy Holidays,
Frank Condelli
Almonte, Ontario, Canada
'87 Westy, '90 Carat, '87 Wolfsburg (Forsale) & Lionel Trains
Vanagon/Vanagon Westfalia Service in the Ottawa Valley
_Frank Condelli & Associates_ (http://members.aol.com/Fkc43/busindex.html)
_Vanagon Stainless Steel Exhaust Systems_
(http://members.aol.com/Fkc43/stebro.htm)
_BusFusion_ (http://members.aol.com/BusFusion/bfhome.htm) a VW Camper
camping event, Almonte, ON, June 07 ~ 10, 2007
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