I replaced all the vacuum lines on my 82 air cooled Westy.  Bus Boys has a
pretty nice website that shows a schematic of all the vacuum lines in the
engine bay.  You can click on each hose individually and it shows you the
Bus Boys part# and price.  I don't recall them selling a kit with all the
lines, but if you give them a call they may be willing to negotiate.  I am
sure that many of the other on-line vendors may be able to help you on this.

One way to search for vacuum leaks is to shoot starter fluid on the hoses
and hose junctions.  If the starter fluid gets sucked in through a cracked
hose the idle will jump up.  I have heard of people doing this with propane
as well.  Don't forget to check the fuel injector O-rings.

The temp II sensor is pretty inexpensive and easy to replace.  You may want
to replace it just to eliminate that possibility.  I actually rigged up a
contraption at work with a hot stir plate, ring stand, thermometer, and volt
gauge.  I positioned the sensor in a beaker full of cold water and gradually
heated it to boiling all the while recording the resistance and water temp.
Turned out my sensor was junk.

Good luck,
Jake

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Higginbotham, David A.
Sent: Tuesday, June 28, 2005 2:16 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 82 Aircooled Temp II sensor ohm's

Not to be exceedingly dense but how do I determine if there is a vacuum
leak? I'm not really sure which lines are vacuum and which are not. 

Does any of our list vendors sell some kind of kit to replace all these
27 year old plastics?

David H

------------------------------

Date:    Tue, 28 Jun 2005 10:37:44 -0400
From:    Wil Haslup <wil@CHARMFX.COM>
Subject: Re: 82 Aircooled Temp II sensor ohm's

Wil Haslup wrote:
<<<
Just MHO but I've found starting problems like this are more often
related to vacuum.  Specifically I found at least one leak where the
clamp a previous owner put on to hold the rubber fitting cut into it and
it was nearly impossible to notice without removing the clamp.
>>>