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Date:         Fri, 5 Mar 2010 02:45:58 -0600
Reply-To:     Tom Hargrave <thargrav@HIWAAY.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tom Hargrave <thargrav@HIWAAY.NET>
Subject:      Re: AIR FLOW METER
Comments: To: Arkady Mirvis <arkadymirvis@GMAIL.COM>
In-Reply-To:  <A6AB7AD4B16F4ABE916DCB0D86D9E97F@Guenther>
Content-Type: text/plain; charset="US-ASCII"

Ark,

Problem is it's a variable resistor that continuously changes value as you are going down the road based on airflow through the meter. And the value changes by a wiper sweeping back and forth across a carbon track. Eventually the wiper wears through the carbon track & when this happens the unit gets intermittent and then eventually fails. And since this is a wear item they will all eventually fail.

Some mechanics have figured out how to fix some of bad ones by relocating the wiper so that it sweeps through a new track but once you wear a track across the carbon the values are not exactly where they were from the factory.

I've often wondered if the working parts from inside another airflow meter, maybe something more readily available, could be retrofit into a failed Vanagon airflow meter. Bosh manufactured millions for a lot of different cars and some of the parts have to be common.

Thanks, Tom Hargrave 256-656-1924

Our Web Sites: www.kegkits.com www.stir-plate.com www.andyshotsauce.com

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of Arkady Mirvis Sent: Friday, March 05, 2010 1:56 AM To: vanagon@GERRY.VANAGON.COM Subject: AIR FLOW METER

Expensive part! Are failures common? What causes the failure? What are the symptoms and consequences of AFM failure? Please name the sources. Ark No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2718 - Release Date: 03/04/10 13:34:00


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