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Re: Harness Conductivity


Melissa & Jim wrote:
> 
> On  3 Dec 97, T. A. Dapper wrote:
> 

>   A break in the insulation can allow a corrosion point.
> > Heat felt at such a point indicates resistance, and a lessened current
> > flow.
> 
> I don't think I have ever seen an example of this.  I would expect it
> to be the result of broken strands, probably caused by someONE,
> rather than by a chemical process.
> 
> The kind of thing that CAN happen is that you have a nick in the
> insulation in an area where the wire sits in a pool of water long
> term.  Then the water forms an electrolite with road salt and you get
> galvanic corrosion between the copper in the wire and the iron of the
> car body.  I hope you'll agree that this is a rather extreme
> situation.
> 

I have finaly tracked down an intermitant starting problem to a cut in
the insulation on my coil power wire.  No strands have been cut, but
there is a 1" long slice in the insulation where it enters the engine
compartment.  If I leave the ignition on and go back to wiggle the wire
at this point, I can hear the distributer "click", and the car will
start right up.  
Instead of shortening and splicing into the wiring harnes, I was
considering clearing the old insulation off, melting in some soder, and
using heat shrink tubing to reinsulate.  Is this too hokey?  What's the
best way to do this, I'm not too experienced. (Yet)

Peter Parker
'66 Square; Phillip
Portland, OR


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