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Date:         Tue, 3 May 2011 01:16:45 -0700
Reply-To:     "Todd.Last" <Rubatoguy@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Todd.Last" <Rubatoguy@COMCAST.NET>
Subject:      Re: Anyone know how to calibrate the speedo?
Comments: To: Mike <mbucchino@CHARTER.NET>
In-Reply-To:  <6AC48E3D5C404D91B84CD4EC88CB910F@Mikelaptop1>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I've had good results with this company in the past. http://www.paspeedo.com/index.htm

On 4/21/2011 3:37 PM, Mike wrote: > I took apart a broken Rabbit speedometer to check out how to access > to the > speed indicator cup and drive magnet for the speedometer function. > I found that the magnet can be slid fore and aft on the cable drive > shaft to > bring the magnet deeper into/ farther out of the steel cup. > This would vary the eddy current effect, which would allow one to > calibrate > the indication on the needle. A shop that's capable would charge $300 - > $500 to do this for you. > Mine now indicates 62 MPH when I'm travelling @ 65 MPH (checked by GPS), > so If I rely solely on the speedo, I could get a speeding ticket when > I set > my cruise at 65. > I'm actually travelling 3 or 4 mph faster than my needle indication, and > this really bugs me. > I am aware of the designed-in inaccuracy of the older VW speedos. > My wheels are stock steel with tires that are stock-sized Michelin Agilis > load C's all around. > I've searched for info for this specific procedure. but to no avail. I'd > like to take my Vanagon Speedo apart to see if it's similar to the Rabbit > one in this area. > Does anyone know if I have to disassemble and re-assemble to speedo many > times in trial and error method, or is there a way to mock it all up > on the > bench and get it done that way? > If I figure it it all out, I'll post it to the list. > > Appreciate any help! > Mike B. >


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