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Re: Weird electrical short burned throttle cable

To: "RWM" <RWM@rwmann.com>, "Alex Avery" <aavery@rica.net>,
Subject: Re: Weird electrical short burned throttle cable
From: "Patrick P. Castronovo" <slick1@mohaveaz.com>
Date: Thu, 3 May 2001 07:35:02 -0700
Look along the cable from your control panel to the firewall.  There is a
hot wire touching the cable along that route.  Pat


-----Original Message-----
From: RWM <RWM@rwmann.com>
To: Alex Avery <aavery@rica.net>; datsun-roadsters@autox.team.net
<datsun-roadsters@autox.team.net>
Date: Thursday, May 03, 2001 7:16 AM
Subject: Re: Weird electrical short burned throttle cable


>Sounds like wire bundle chafing, under the dash.
>
>If it's white-red to throttle or choke cable, it's a dead short.
>
>- Bob Mann, '69 2000 Solex
>
>Alex Avery wrote:
>>
>> Ok, this may be the weirdest electrical problem I've run across.
>>
>> I'm a Z guy, but my pops has a '69 2000.  Yesterday evening, he was out
>> "enjoying the ride" when his throttle pedal started getting "soft" and
the
>> engine died down to idle.
>>
>> He pulled over onto the grass by the side of the road and when he got
out,
>> he noticed smoke emerging from around the sides of the hood.  He popped
the
>> hood and saw what he thought were "wires" on fire!  He put them out with
>> his hankerchief and walked home and gave me a call.  I drove over to tow
>> the little bulldog (that's what I call it) home.
>>
>> When I looked at the "wires" he told me about, I realized they weren't
>> wires at all--they were his throttle cable and one of the choke cables.
>> The main throttle cable's plastic sheathing melted right off along the
>> whole length of the metal cable (from the linkage on the intake back to
the
>> pivot arm on the firewall).  I looks like the throttle cable is a
>> replacement, as there is no metal sheathing on this cable as there is on
>> the choke cables.
>>
>> On the choke cable, it's metal with a plastic cover over that.  The
plastic
>> has boiled along the whole length of cable and this cable is now bonded
to
>> the other non-melted choke cable.
>>
>> So, what is happening?  My hunch is that there is a huge short running
>> through these cables and this is causing them to heat up, etc.  But where
>> is the juice coming from?   Has this happened to anyone else?
>>
>> Help, I'm terrible with electrical problems and my father relies on me to
>> keep his little beast going.
>> Alex Avery
>> Churchville, VA
>
>--
>R.W. Mann & Company, Inc.  > Airline Industry Analysis and Consulting
>Port Washington, NY  11050 > tel 516-944-0900, fax 516-944-7280
>mailto:info@RWMann.com     > URL http://www.RWMann.com/

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