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Integral Charging System [message #72462] Mon, 01 February 2010 10:13 Go to next message
g.winger is currently offline  g.winger   United States
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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
Re: [GMCnet] Integral Charging System [message #72463 is a reply to message #72462] Mon, 01 February 2010 10:26 Go to previous messageGo to next message
comcast is currently offline  comcast   United States
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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: Integral Charging System [message #72464 is a reply to message #72462] Mon, 01 February 2010 10:43 Go to previous messageGo to next message
g.winger is currently offline  g.winger   United States
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Roger, wonder if you were to load it up to capacity if it would slow down the idle. Rode with the KCPD once in a 225/6 Dodge in 78/79 and the motor would slow and the lites would dim when the officer keyed the mic. Did you notice larger wire????Paul L.
Re: [GMCnet] Integral Charging System [message #72466 is a reply to message #72464] Mon, 01 February 2010 10:52 Go to previous messageGo to next message
comcast is currently offline  comcast   United States
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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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Re: [GMCnet] Integral Charging System [message #72483 is a reply to message #72463] Mon, 01 February 2010 13:32 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Registered: January 2004
Location: Hebron, Indiana
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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



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
Re: [GMCnet] Integral Charging System [message #72503 is a reply to message #72483] Mon, 01 February 2010 15:10 Go to previous messageGo to next message
Jim Bounds is currently offline  Jim Bounds   United States
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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
--------------------------



----- 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 #72504 is a reply to message #72503] Mon, 01 February 2010 15:45 Go to previous messageGo to next message
comcast is currently offline  comcast   United States
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Jim B,
The "regular" alternator originally was in the Birchaven. The big one
was from a people hauler. We just took the engine/alternator combo
and installed it in the Birchaven.

Roger
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Re: Integral Charging System [message #72507 is a reply to message #72462] Mon, 01 February 2010 16:38 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Remember not to exceed the rating of your battery isolator. Just because its rated at 145amps doesn't mean it puts out that much, unless you apply loads that add up.

If you are adding extra loads and need the higher output alternator, I'd also change the output wire from the alternator to the isolator. Thats alot of current for a # 10 wire to handle.

Just my 2 cents.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Integral Charging System [message #72508 is a reply to message #72466] Mon, 01 February 2010 16:40 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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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

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
Re: [GMCnet] Integral Charging System [message #72512 is a reply to message #72508] Mon, 01 February 2010 17:39 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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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
Re: [GMCnet] Integral Charging System [message #72513 is a reply to message #72507] Mon, 01 February 2010 17:34 Go to previous messageGo to next message
comcast is currently offline  comcast   United States
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Thanks, guys, but I haven't had a problem with the alternator at all.
Belts, no problem. Isolator is a 150 amp from Yandina per her
advice. Batteries are always charged when sitting. No doubt, I have
never really needed it's real output.

I was just answering someone's query on anyone having that option.

Roger
Burns, TN
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Re: [GMCnet] Integral Charging System [message #72514 is a reply to message #72512] Mon, 01 February 2010 17:45 Go to previous message
comcast is currently offline  comcast   United States
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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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