It is the crancase vent heater/restrictor. It prevents water vapor from freezing and blocking off the vent. It gets 12 volts when the engine ie running. It is feed from a 5 amp fuse located in the black splice box, front left of the engine compartment. Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of Claudio Cella Sent: Sunday, January 05, 2003 1:08 PM To: vanagon@GERRY.VANAGON.COM Subject: unknown switch? Good morning Volks, once again i need to tap this well of knowledge. I am in the proces of replacing fuel lines (thank you for all your help on that as well) and have removed all of the intake "spider" plumbing. I will try and describe what i am looking at and where it is located on the vehicle - i am hoping someone can tell me what it is and what it does. It is located (and joins 2 rubber hoses) on top of the engine, just beneath the idle stabilizer control valve and slightly to the right. Connects from the cylindrical black tower (about 8" high and 4"diameter) located on top of engine at rear where the cases join, and runs to the intake plenum. The switch itself is just a hollow plastic cylinder about 3 to 4" long with a portion of its inner wall lined with copper. There is a electrical connection on this item as well. The hoses connect at either end of this item and seem to be rotted, in fact the portion closer to the "black tower" is collapsed/crushed to less than 1/4 of it's inteded size. The hose with switch is used to recirculate crankcase fumes back to the intake and combustion chambers. What does this item do?? Forgive my rambling above - as i read it i wonder how you folks will be able to understand all the mumble jumble. thanks very much. 87 Vanagon GL 7 pass - 2.1 90 Jetta TD |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.