Date:         Sat, 28 Jul 2012 00:44:24 -0700
Reply-To:     neil n <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil n <musomuso@GMAIL.COM>
Subject:      Re: Engine Bay Wiring Harness: Heat Damage? PIC
Comments: To: David Beierl <dbeierl@attglobal.net>
In-Reply-To:  <50138297.6757b40a.6e94.ffff8da4@mx.google.com>
Content-Type: text/plain; charset=ISO-8859-1

On Fri, Jul 27, 2012 at 11:11 PM, David Beierl <dbeierl@attglobal.net> wrote:
> At 08:36 PM 7/27/2012, neil n wrote:
>>
>> The dark brown spots are where harness was cable strapped beneath the
>> air cleaner bracket.
>
>
> Sure looks like a burn, but I suspect it's really interaction between the
> harness cover and the grommets.  If it were hot wires the damage would be
> worse on the inside.


At this point I'm pretty sure that with time, heat from the engine
heated up the surrounding metal enough that it caused the casing to
burn. I guess it can't hurt to double check the FI wires as they show
a little heat damage too. All the wires from the idle stabilization
unit show continuity but that's just a test with a small load from
DVOM. Still. They don't show signs of heat damage.

The wires to the B+ post inside the junction box looked OK but a fuse
sounds like a good idea.

Much thanks!

Neil.


> Yrs,
> d
> ps - speaking of P/S pressure switches, you might want to fuse the red B+
> lead from the terminal post inside the wiring box that feeds the relay box.
> Doing that would have saved my harness when something happened to that wire
> on mine.  I never determined precisely what happened, but it was clear that
> that particular wire got extremely hot (along with the wiring in the relay
> box and the relay box cover and the said B+ lead.).   I've found 7.5A
> sufficient, perhaps even 5A.



--
Neil n

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