Date:         Sun, 25 Jul 2010 08:15:25 -0400
Reply-To:     Larry Alofs <lalofs@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Larry Alofs <lalofs@GMAIL.COM>
Subject:      Re: Air flow Meter
In-Reply-To:  <01b901cb2ba4$a9617b00$6401a8c0@PROSPERITY>
Content-Type: text/plain; charset=ISO-8859-1

The resistance test in the Bentley is not very satisfying.
  A much better test is to connect a voltage source like a 9V battery
to the ends of the potentiometer (which would be +12v and ground when
it is in the van), and then monitor the voltage at the slider terminal
while moving the vane very slowly.  The voltage should change smoothly
and continuously with no "drop outs".
  An even better test (which I'll try someday) would be to do all this
while the AFM is subjected to the type of vibration it would feel on a
running engine.

Larry A.


On Sat, Jul 24, 2010 at 10:54 PM, Scott Daniel - Turbovans
<scottdaniel@turbovans.com> wrote:
> wanted to add, that if your are dealing with 'fires up, then dies' ..
> it makes all the difference in the world to have a Remote Starter Switch
> connected to starter solenoid so you can be right there with the engine
> while cranking it on the starter to fire it up.
>
> just be careful is all.
> Scott
> www.turbovans.com
>
>
> ----- Original Message -----
> From: "Scott Daniel - Turbovans" <scottdaniel@TURBOVANS.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Saturday, July 24, 2010 7:21 PM
> Subject: Re: Air flow Meter
>
>
>> Air Flow Meters are a weak link anyway,
>> in an ideal world we'd put a new OE genuine VW german one on every 5
>> years..
>>
>> what is the symptom ?
>> if find them causing uneven running, and hiccupping..
>> but they won't keep it from starting up.
>>
>> not sure on an air-cooled, but  a waterboxer  will  start just fine
>> without
>> the AFM even on the van...
>> won't rev out ..but will start and run.
>>
>> what is the symptom you are trying to fix ?
>>
>> Scott
>> www.turbovans.com
>>
>> ----- Original Message -----
>> From: "aaron" <aaron@AARONPACKARD.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Saturday, July 24, 2010 6:41 PM
>> Subject: Air flow Meter
>>
>>
>>> OK,
>>> air flow meter has failed the resistance tests. looking like the
>>> problem. Any suggestions on double checking this to make sure there
>>> isn't something additional.
>>>
>>> 82 non-Cal 2.0 air-cooled gas
>>>
>>> All the best
>>> Aaron
>>>
>>> Aaron Packard Photography
>>> www.aaronpackard.com
>>> aaron@aaronpackard.com
>>> O: (605)624-9222
>>> C: (605)670-2601
>>>
>>> 2 E Main St
>>> Vemillion, SD  57069
>>>
>>>
>>> Represented by:
>>> Wonderful Machine
>