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| Integral Charging System [message #72462] |
Mon, 01 February 2010 10:13  |
g.winger
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
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Was looking at my electrical prints and noticed listed as an option LO4 or LD4 Integral Charging System (145 amps)RPO LO4,,,,,,was wondering if this is a diffrent alternator or a second alt. I'm know I don't have it but has anyone seen one????? Here at the GMC plant(well,,,,chevys too) we have a twin alt. option for ambulances. Just wondering???PL
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| Re: [GMCnet] Integral Charging System [message #72463 is a reply to message #72462] |
Mon, 01 February 2010 10:26  |
comcast
Messages: 604
Registered: August 2009
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Paul,
I have this alternator on my Birchaven. It was not on it originally,
it came on the engine I got out of a people hauler. While installing
the engine, I took both the 145 amp and the original 100 amp(?) to an
alternator guy to check them both out. When I went back to pick them
up, he said use the 145 and hadn't even checked out the smaller one.
Said, the big un, and that sucker is BIG would give me all I would
ever need and no need to fool with the smaller one. Haven't had a
problem with it at all over the last several years.
Can't really imagine why they had such a big one on the people haulers
except that there may have been lots of lights. There were also
engine heated additional heaters installed under seating sections with
their own fans. It may have been needed to furnish power while idling
a lot. Just a guess on that one, though.
Did I say, it's BIG? It actually is a monster unit and had two of us
straining to get it installed, one pushing up from underneath, and one
on top pulling and trying to attach the bolts. It is also a one wire
unit.
Roger
77 Birhcaven with 78 403
Burns, Tn
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| Re: [GMCnet] Integral Charging System [message #72483 is a reply to message #72463] |
Mon, 01 February 2010 13:32 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| comcast wrote on Mon, 01 February 2010 10:26 |
Paul,
I have this alternator on my Birchaven. It was not on it originally,
it came on the engine I got out of a people hauler. While installing
the engine, I took both the 145 amp and the original 100 amp(?) to an
alternator guy to check them both out. When I went back to pick them
up, he said use the 145 and hadn't even checked out the smaller one.
Said, the big un, and that sucker is BIG would give me all I would
ever need and no need to fool with the smaller one. Haven't had a
problem with it at all over the last several years.
Can't really imagine why they had such a big one on the people haulers
except that there may have been lots of lights. There were also
engine heated additional heaters installed under seating sections with
their own fans. It may have been needed to furnish power while idling
a lot. Just a guess on that one, though.
Did I say, it's BIG? It actually is a monster unit and had two of us
straining to get it installed, one pushing up from underneath, and one
on top pulling and trying to attach the bolts. It is also a one wire
unit.
Roger
77 Birhcaven with 78 403
Burns, Tn
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When we were installing it I tried to convince Roger that he really did not want or need it and that he should give it to me. My appeal did not work.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Integral Charging System [message #72503 is a reply to message #72483] |
Mon, 01 February 2010 15:10 |
Jim Bounds
Messages: 842
Registered: January 2004
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You never know what a Transmode has in it and a Birchaven is still a "Transmode" to start with. They might have gotten a special application coach mixed in with the ones going to Coachman and out popped you morphodite. Who knows, I have a 160 amp leece-Nevelle alternator on one coach that came in here-- only that one huge alternator but hey, it's there-- if it's working I guess it's OK. I would have installed the original Delco one, if something went wrong with it someday in the future you could replace it. As it is, when you have troubles, you will have to have that exact alternator rebuilt or go through all the H86t55 to remount another alternator. I woud keep all the brackets and the Delco alternator, you may want to put it in one day.
Jim Bounds
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----- Original Message ----
From: Ken Burton <n9cv@comcast.net>
To: gmclist@temp.gmcnet.org
Sent: Mon, February 1, 2010 2:32:51 PM
Subject: Re: [GMCnet] Integral Charging System
comcast wrote on Mon, 01 February 2010 10:26
> Paul,
> I have this alternator on my Birchaven. It was not on it originally,
> it came on the engine I got out of a people hauler. While installing
> the engine, I took both the 145 amp and the original 100 amp(?) to an
> alternator guy to check them both out. When I went back to pick them
> up, he said use the 145 and hadn't even checked out the smaller one.
> Said, the big un, and that sucker is BIG would give me all I would
> ever need and no need to fool with the smaller one. Haven't had a
> problem with it at all over the last several years.
>
> Can't really imagine why they had such a big one on the people haulers
> except that there may have been lots of lights. There were also
> engine heated additional heaters installed under seating sections with
> their own fans. It may have been needed to furnish power while idling
> a lot. Just a guess on that one, though.
>
> Did I say, it's BIG? It actually is a monster unit and had two of us
> straining to get it installed, one pushing up from underneath, and one
> on top pulling and trying to attach the bolts. It is also a one wire
> unit.
>
> Roger
> 77 Birhcaven with 78 403
> Burns, Tn
When we were installing it I tried to convince Roger that he really did not want or need it and that he should give it to me. My appeal did not work.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Integral Charging System [message #72508 is a reply to message #72466] |
Mon, 01 February 2010 16:40 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| comcast wrote on Mon, 01 February 2010 11:52 |
Haven't noticed anything different with it. Don't know if I can load it to capacity. Got an amp gauge but not hooked up or installed. Not sure on the larger wire. Bob Burkitt, where are you? He's the electrical guru who did the wiring stuff on the change out of the engine. He's hell on wheels with a blue paint can as well. <G>
Roger
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Roger,
Unless the house bank is seriously down and you have at least a pair of T-105s and wiring much upgraded, you will never be able to load that alternator to rating. If you also have not upgraded to a dual belt, you will smoke the one you have before you do. A true 1/2in belt (like you should have) will smoke at about 110 amp. That is not a real big problem, because you can't get a T-105 or GC2 pair to charge that hard for very long.
I do alternator upgrades for cruisers all the time. The target always seems to be to recover a dead house bank (1 or2 8D) in an hour of engine time. I tell the ones with little 10mm belts (common on the sailboat diesels) that they can't go over 100 amp ever and can't sustain 90 for more that a couple of minutes. If they don't listen, I turn down the regulator (these are high Zoot regulators that CO$T) so I don't get another emergency call to change a belt.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Integral Charging System [message #72512 is a reply to message #72508] |
Mon, 01 February 2010 17:39 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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Roger has an AC Delco alternator and all of the pulleys and brackets supplied by GM to support it. Roger's alternator was an option on the GMC MH in 1977 or 1978. We took his engine out of another GMC complete with all of the alternator mounting brackets and pulleys. We installed it in Roger's Birchaven. Roger also has a 150 amp combiner. The entire system is designed to handle the added 12 volt power capability.
The only thing I did not like is it is a one wire alternator without remote voltage sensing.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Integral Charging System [message #72514 is a reply to message #72512] |
Mon, 01 February 2010 17:45 |
comcast
Messages: 604
Registered: August 2009
Karma: 0
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Senior Member |
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Ken said, The only thing I did not like is it is a one wire alternator
without remote voltage sensing.
Haven't noticed any problem with it's output from the start, Ken.
Also, no need for the protection unit from Gene Fisher to protect the
wiring under the dash. Pros and cons, some good, some maybe not so
good. Haven't run into any of the cons, yet.
Roger
With full power!!!!
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