From: Ida Heath (spike@defuniak.com)
Date: Tue Aug 24 2004 - 18:38:31 PDT
Thanks to you and all others who replyed to my problems.
Sonny
----- Original Message -----
From: chance wolf <chance_wolf@shaw.ca>
To: Military Vehicles Mailing List <mil-veh@mil-veh.org>
Sent: Tuesday, August 24, 2004 8:31 PM
Subject: Re: [MV] HMMWV cooling fan
>
> ----- Original Message -----
> From: "Ida Heath" <spike@defuniak.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Tuesday, August 24, 2004 6:01 PM
> Subject: Re: [MV] HMMWV cooling fan
>
>
> > I don't know but I have a Humvee question, What would make the batteries
> > sound like they are boiling?
>
> Overcharging. Usually accompanied by an incredible smell indicating the
> batteries are gassing off their electrolyte. I wouldn't take up smoking
> anytime soon.
>
> > Also, where is the ampmeter supposed to stay when driving down the road?
> > Mine is over to the right in the red.
>
> Your alternator's running too hot. Most are adjustable, but what's
happened
> is that people have had a poor engine ground at some point - have had
their
> battery guage read low as a result - and have then attempted to crank up
> their alternator output to compensate. Well, when the ground
re-establishes
> itself either through chance or repair action, your alternator's now
boiling
> your batteries at 32-plus volts.
>
> I think both the Leece-Neville and Prestolite alternators have the same
> style adjustment. On the body of the alternator near the end opposite the
> pulley you'll find an allen-key plug. Undo the plug, and beneath you'll
> find an adjustment screw you can turn with a suitable slot-type
screwdriver.
> Make sure whichever screwdriver you use doesn't touch the side of the
> casting as you're adjusting, and if you don't have a suitable one with a
> non-conductive shank, play with some shrink wrap or gun tape and cover the
> screwdriver shaft yourself.
>
> As far as the ammeter reading goes, it's actually a voltmeter, and should
> stay within the green area and preferably right on the 'extra' white line
in
> the green area.
>
> Before playing with any adjustments however, make sure your engine and
> body/frame are properly grounded to one-another, and in turn to the
battery.
> I had one flakey one where I demonstrated to the owner where all the
trouble
> with his electrical system lied simply by taking a jumper cable and
> grounding the block to a suitably clean spot on the body. Everything
worked
> as advertised once the ground was in place.
>
>
>
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