Out here in the real world, batteries wear out. There comes a point at which they are not going to produce a charge, no matter what the plates are immersed in, no matter what kind of charging voltage you run into them. When that happens, an alternator simply will not put out. The alternator depends upon the negative side of the electrical system to recharge the positive. No electrons on the negative post, no electrons into the alternator, nothing out the other end. I've got an ancient dead battery here at the house if you'd like to stop by and prove me wrong. BTW: Ford was still using externally regulated alternators in 1980. BBTW: My first daily driver is 27 years old (on its second alternator however). BBBTW: You may want to add my email address to your client's spam filter. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "Elvis" <elvisnocita@...> wrote: > > > Again a collection of half correct things. :-( > > > Let me try to clear things up for you: > > > > The regulator is very much inside the metal housing (in it's own > > recess, but very much within the overall circular confines of the > > unit). > > It is attached to the housing but very easy to come by - you don't > need to open the complete housing, take off bearings and stuff like > that. OK in old days the regulators were externally - that was > because they were electromechanically built without transistors ! > That was until the early 60s !!! > > > >In the bad old days, regulators were completely separate from > > the alternator housing, usually mounted to the firewall, a wheel > well, > > or some other engine compartment location. You replaced the > regulator > > without touching the alternator itself. Very few people replace > > internal regulators these days (I don't know if parts houses even > > carry internal regulators). > > > > BTW: In the bad old days alternators lasted *MUCH* longer than they > do > > today. Not only were vehicle electrical demands negligible (40 amps > > was quite common), but the alternators themselves simply were better > > built. I also wonder what heat does to internal regulators. "One > wire" > > alternators are simple to install, but you seem to pay for that > > simplicity with a shorter life span. > [quote snipped by moderator] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/