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Message from discussion Starter solenoid current?
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cl...@snyder.on.ca  
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 More options Apr 8 2012, 6:50 pm
Newsgroups: aus.cars, rec.autos.makers.vw.watercooled
From: cl...@snyder.on.ca
Date: Sun, 08 Apr 2012 18:50:07 -0400
Local: Sun, Apr 8 2012 6:50 pm
Subject: Re: Starter solenoid current?
On Fri, 4 Nov 2011 19:47:45 +1000, "Scotty" <scot...@warmmail.com>
wrote:

>"Bernd Felsche"  wrote in message
>news:vr08o8xv.ln2@innovative.iinet.net.au...

>"Clocky" <notg...@happen.com> wrote:
>>"Bernd Felsche" wrote

>>> I'm trying to figure out the current draw by the starter solenoid,
>>> (not the starter motor) at terminal 50.

>>> It's powered through the ignition switch in the Golf GTI but the 4mm
>>> wiring has me baffled. That's too much current to go through a
>>> little ignition switch if the wire is sized for current capacity.

>>> So I assume it's sized to avoid voltage drop, which leaves me none
>>> the wiser regarding the current actually drawn by the starter
>>> solenoid.

>>Why not put an ammeter in series?

>Because it could fry the poor thing ...
>Most multimeters maxo ut at 10 Amps.
>I suspect that it could be 30A, if not more.
>Bosch book says 30 to 70A, depending on the size of the starter.

>/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia
>\ /  ASCII ribbon campaign | For every complex problem there is an
>X   against HTML mail     | answer that is clear, simple, and wrong.
>/ \  and postings          |
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

>I'd be VERY surprised if it was over 10 Amps to be honest. a 4 mm2 cable.
>Seeing as a 4mm cable is really only capable of 30 Amps for a reasonably
>short time.

>Id be testing with an ammeter. 90% of ammeters have internal fuses
>protecting the device anyway.

>Scotty

Put a 7 amp fuse in line and crank the engine. If it doesn't blow you
pretty well know it;s less than 12 amps (fuse can take about 60%
overcurrent for several seconds)

 
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