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Subject:Re: What goes here? and a part request for a 85 GL.
From:Vanagon
Date:Wed, 2 Jul 2014 12:21:49 -0700

Surely someone here could come up with a use for a TDC sensor! Alistair? Felder?

Sent from my 1963 maroon and cream 702B Western Electric Princess phone. 

> On Jul 2, 2014, at 9:40 AM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:
> 
> At 09:50 AM 7/2/2014, Jimmy Johnston wrote:
>> was broken"  I'm in the process of giving it the once over.  I notice this
>> port connected to the alternator.  So, my question is What goes here:
>> 
>> https://plus.google.com/u/0/photos?pid=6031256901473430530&oid=104110054373682507279
> 
> That connects to an inductive sender that signals TDC by generating a
> small pulse (from a magnet embedded in the flywheel).  You can see
> the other end at the top of the bellhousing.
> 
> Used by a VWAG diagnostic tool that's obsolete.  If you have use for
> a TDC sensor (only works when the engine is running as the pulse is
> proportionate to magnet speed) there it is.  Otherwise it's no use.
> 
> Yrs,
> David