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From: bl@hplabsb.UUCP
Newsgroups: net.auto.tech
Subject: Re: conversion of 6 volt to 12 volt system
Message-ID: <3170@hplabsb.UUCP>
Date: Wed, 13-Nov-85 13:19:25 EST
Article-I.D.: hplabsb.3170
Posted: Wed Nov 13 13:19:25 1985
Date-Received: Fri, 15-Nov-85 05:26:17 EST
References: <362@cbuxc.UUCP>
Distribution: net
Organization: Hewlett Packard Labs, Palo Alto CA
Lines: 27

> I have a 63 Ford model 4000 tractor. This is a full size agricultural
> tractor. It has a standard starting system and ignition system, the
> components are:
> 
> 		6v generator
> 		6v starter
> 		voltage regulator
> 		6v ignition coil
> 		6v lights
> 		6v starting solinoid (external to starter)
> 
Not to mention a 6V battery. :-)

> 		1) can I use a straight 12 volts on this critter without
> 		   a premature meltdown (what would the voltage drop be,
> 		   etc.)

You already stated that it works on 12V (when jumping it).

> 
> 		3) since the system is positive ground, can the case polarity
> 		   of the DELCO alternator be reversed or can the starter
> 		   be operated reverse polarity (since it is a D.C. motor
> 		   I would expect it to run the other way?)

If you're going to change everything else, why not make it a negative
ground?  Dismantle the starter and switch the hot and ground wires.