I've been using a 110 amp Delco on Muddy for years with some very heavy
winch use at times. I can't say which model it is but has the same case
as the 63 amp one. It has a larger stator and heavier brush pack. To
compensate for the low rmp I used a smaller pulley to step up the speed.
John and Muddy
Jean-Leon Morin wrote:
>
> > Now, no. No reason not to go with a high-capacity 12-volt
> > battery. Or do what I did when I first had my Diesel - two
> > 12-volt batteries in parallel. You wanna talk amp-hours....<grin>
>
> Urrghh...
>
> Speaking of batteries and other volt related gizmos...
>
> I've got two batteries. One is under the bonnet in the standard spot. The
> other is in the spare well in the rear tub. They are in parallel for mucho
> CCA, tied together by -2/0 welding cable. Between the winch, the lights, the
> stereo (two smallish amplifiers and a CD player) and the twin heater motors,
> there is quite a lot of draw.
>
> This is the problem. The alternator doesn't put out enough amps to keep
> everything happy if I'm not driving at speed (2500 rpms). When everything is
> on and I am idling, I can see the lights dim, and as soon as I hit the gas
> everything is happy. Trying to use the winch and the off-road lights at the
> same time causes a major voltage drop.
>
> So, I have to "build" a larger alternator, or boost the output of the
> current one. it is a delco 63 amp alternator from an 81 delta 88 or
> something. I've seen the 100 amp+ rebuild kits that boost the output of a
> Delco alternator. What I'm worried about is reliability. It seems that
> almost doubling the alternators' output might be a tad hard on the thing.
> I've heard that these alternators aren't as durable as the lower output
> ones. Should I be worried? I've seen Delco marine alternators rated for 130
> amps. This seems like asking for trouble as the case dimensions were
> established for around 60 amps of charging. However, I have no real
> understanding of why this would cause a problem if the diodes and regulator
> were uprated to deal with the current, which they are in the kits I have
> seen. Then again, some smaller Nippondenso alternators put out 100 amps and
> have a case size of 2/3rds that of a Delco.
>
> The other alternative (that would be difficult but probably unbeatable)
> would be a heavy truck alternator such as a Prestolite. They put out 160
> amps +, and over 75 amps at idle. Of course, this would mean twin belts
> (this is doable) and they take up a lot of space, but it would charge.
> However, that means an expensive piece that cannot be purchased for 50$ at
> autozone ;-)
>
> So,Opinions?
>
> thanks all...
>
> J-L
> _______________________________________________
> LRO mailing list
> LRO@land-rover.team.net
> http://land-rover.team.net/mailman/listinfo/lro
_______________________________________________
LRO mailing list
LRO@land-rover.team.net
http://land-rover.team.net/mailman/listinfo/lro
This archive was generated by hypermail 2b30 : Tue Dec 31 2002 - 18:03:27 EST