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04-07-2017, 08:21 AM
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#1
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Mini-Skoolie
Join Date: Jun 2015
Posts: 30
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Dual alternator on a 8.3
His anyone ever put two alternators on a 8.3 befor if so pls do tell.. I need more power! Lol more power!
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04-07-2017, 09:55 AM
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#2
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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...or...go with a single high output. You can get alts up to about 300+ amps. Mine is 250. Most are built for EMS and other service type vehicles. Might even be cheaper since they usually use the original mount/bracket.
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04-07-2017, 12:04 PM
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#3
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Mini-Skoolie
Join Date: Jun 2015
Posts: 30
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I was hopping to get right around 300 amps but thuy only make a 240 one and it's 500 they also make a 400 amp on but it's like 1400 way to much.. cheap Asian! Lol I was hoping they make a kit for dual atl.. I think I see them on RVs but I don't know.
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04-07-2017, 12:13 PM
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#4
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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__________________
Robin
Nobody's Business
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04-07-2017, 12:48 PM
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#5
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Mini-Skoolie
Join Date: Jun 2015
Posts: 30
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Quote:
Originally Posted by Robin97396
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Will that work on a 93 8.3 cummins? I know I'm asking too much now! Lol ;)
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04-07-2017, 01:45 PM
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#6
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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__________________
Robin
Nobody's Business
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05-21-2017, 10:01 AM
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#7
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Hey NguyenBus,
Did you ever find an answer to this?
I would like to add a 2nd alternator to my Bluebird with an 8.3. I will be running a 24v house battery bank and want an alternator dedicated to charging the house battery bank.
Thanks.
S.
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06-08-2017, 07:35 PM
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#8
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Bus Nut
Join Date: Feb 2016
Location: in the bus on the road
Posts: 529
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
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Nah. I put a 260 amp alternator in my carpenter 5.9 cummins. I can charge my huge solar bank rolling and run my air conditioner at idle.
Sent from my LGLS676 using Tapatalk
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06-08-2017, 07:36 PM
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#9
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Bus Nut
Join Date: Feb 2016
Location: in the bus on the road
Posts: 529
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
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Quote:
Originally Posted by NguyenBus
Will that work on a 93 8.3 cummins? I know I'm asking too much now! Lol ;)
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It should. 360? Damn. The one di looked at was oil cooled, so i went with a 260
Sent from my LGLS676 using Tapatalk
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06-08-2017, 08:05 PM
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#10
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Traveling
Join Date: Nov 2015
Location: Midwest
Posts: 2,573
Year: 2003
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9L Cummins
Rated Cap: '00
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24v
Military runs 24V alternators on the cummins 8.3 for the M939 series 5-tons. Very mechanical everything, 1991.
Might be worth a look?
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06-09-2017, 08:42 AM
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#11
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Bus Geek
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
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Dead Pirate --- does your 260 have an external rectifier? And how do you have it wired into your system?
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06-09-2017, 10:12 AM
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#12
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by Robin97396
I got your dual alternator.
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Ok, I'll bite; is that for real or a photochop?
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06-09-2017, 11:26 AM
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#13
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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It's real. I can't imagine why, but it's real.
__________________
Robin
Nobody's Business
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06-09-2017, 11:52 AM
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#14
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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I am still on the hunt for a dual alternator setup for my 8.3.
Anyone had any success finding a solution?
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06-09-2017, 12:07 PM
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#15
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Bus Geek
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,409
Coachwork: 97 Bluebird TC1000 5.9
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The information I keep finding is on Dodge Cummins Diesel Forum
cumminsforum.com
thedieselstop.com
Dual Alternator Kits - National Alternators
https://www.nationsstarteralternator...Kits-s/209.htm
You've probably seen these because they're so easy to find.
I'd start with making a custom bracket and setting up a belt, but I have no idea about the wiring.
Is this a safer method than trying to use the single alternator to charge house batteries?
__________________
Robin
Nobody's Business
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06-09-2017, 12:09 PM
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#16
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by PNW_Steve
I am still on the hunt for a dual alternator setup for my 8.3.
Anyone had any success finding a solution?
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Ok, I'll bite again/still. Why are you not fabbing a bracket made out of two store bought mounts welded together. That's assuming you don't go 100% from scratch and homemade.
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06-09-2017, 12:16 PM
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#17
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by Robin97396
Is this a safer method than trying to use the single alternator to charge house batteries?
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Gives you some redundancy at the very least. Less load per alt maybe?
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06-09-2017, 12:18 PM
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#18
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by Robin97396
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Thank you for the suggestions.
I did find those and if I wanted a dual alternator on my 5.9 I would be in good shape. Unfortunately I need it for my 8.3 and these folks don't appear to offer kits for the 8.3.
The single alternator will not charge the house batteries because the single alternator is a 12 Volt alternator and the house batteries are 24 Volt. I need a 24 Volt alternator for the house batteries.
Unfortunately I lack the design & fabrication skills to build my own.
Has anyone actually found a dual alternator setup for the 8.3?
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06-09-2017, 12:44 PM
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#19
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Bus Geek
Join Date: Oct 2016
Location: Essex, MD
Posts: 3,738
Year: 1999
Coachwork: Blue Bird
Chassis: Blue Bird TC RE 3904, Flat Nose, 40', 277" wh base
Engine: 8.3L Cummins ISC 260hp, MT643, 4.44 rear
Rated Cap: 84 pax or 1 RV; 33,000lbs
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Quote:
Originally Posted by PNW_Steve
Unfortunately I lack the design & fabrication skills to build my own.
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Bah humbug!! You need a jigsaw (or cutting wheel, etc.), some 3/8ths inch plate, a sharpie, and a drill. Maybe a big piece of 3/8ths plate so you can do it over when you screw up the measurements/alignment the first 3 times.
You can use bolt holes that are already on the engine and just get longer bolts. Make a plate for the front and rear side of the alternator so the mounting points of the alt itself is sammiched in there.
Bonus points if you go out and buy a plasma cutter. Ever use one? I've used a friend's. I absolutely LOVE that thing. $1500 tho but oneday someday.
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06-09-2017, 01:21 PM
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#20
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by Brewerbob
Bah humbug!! You need a jigsaw (or cutting wheel, etc.), some 3/8ths inch plate, a sharpie, and a drill. Maybe a big piece of 3/8ths plate so you can do it over when you screw up the measurements/alignment the first 3 times.
You can use bolt holes that are already on the engine and just get longer bolts. Make a plate for the front and rear side of the alternator so the mounting points of the alt itself is sammiched in there.
Bonus points if you go out and buy a plasma cutter. Ever use one? I've used a friend's. I absolutely LOVE that thing. $1500 tho but oneday someday.
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Nah.... I am much more of a splinter picker than a metal manipulator.
Seriously, this is a piece of the conversion that I would be better off buying an off the shelf solution than trying to build it myself.
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