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| generator cable [message #340089] |
Sun, 13 January 2019 19:44  |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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Evening all,
Need to get a new battery for the Onan 6K, been thinking about just running cable from the front batteries, front right to the generator, if anyone has done this before or did the factory ever do it? I'm trying to establish if 4ga would be big enough or would it take 2ga for that over 30 ft run. Thanks in advance.
Skip Hartline
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] generator cable [message #340092 is a reply to message #340091] |
Sun, 13 January 2019 20:49  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Plus, if you are clueless enough to run your engine battery clear down, you
can start the onan and recharge it, then drive away.
Jim Hupy
On Sun, Jan 13, 2019, 6:29 PM Emery Stora via Gmclist <
gmclist@list.gmcnet.org wrote:
> I would suggest that you not do that. If your front starting battery goes
> bad you will be stranded. With the two battery banks you can always get a
> boost to start the engine from the rear battery bank. If your alternator
> goes out the front battery will likely not be charged. You can run the
> Onan by starting it from the rear battery bank and continue on your trip
> until you can obtain an alternator
>
> All of the above has happened to me more than once in past years.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On Jan 13, 2019, at 6:44 PM, Skip Hartline
> wrote:
>>
>> Evening all,
>> Need to get a new battery for the Onan 6K, been thinking about just
> running cable from the front batteries, front right to the generator, if
> anyone
>> has done this before or did the factory ever do it? I'm trying to
> establish if 4ga would be big enough or would it take 2ga for that over 30
> ft run.
>> Thanks in advance.
>> Skip Hartline
>>
>> _______________________________________________
>> GMCnet mailing list
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>
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| Re: [GMCnet] generator cable [message #340094 is a reply to message #340089] |
Sun, 13 January 2019 23:19 |
Olly Schmidt
Messages: 1265
Registered: February 2014
Location: Germany and Scottsville, ...
Karma: 8
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Senior Member |
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On 14.01.19 02:44, Skip Hartline wrote:
> E Need to get a new battery for the Onan 6K, been thinking about just
> running cable from the front batteries, front right to the generator,
> if anyone has done this before or did the factory ever do it? I'm
> trying to establish if 4ga would be big enough or would it take 2ga
> for that over 30 ft run.
I assume you have a 23', and you want to run from your up-front house
battery to the Onan? Can be done, but I wouldn't, as it is, imho, too
much of a hazzle
If you do do it, I would go with a 2ga.
If you have a 26' and are thinking about connecting to the chassis
starting battery, I wouldn't, as others have pointed out.
--
Best regards
Peer Oliver Schmidt
PGP KeyID: 0x4196BF22
'76a 26' Eleganza II - Virginia, US
'73 23' Sequoia - Schleswig-Holstein, Germany
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Best regards
Olly Schmidt
PGP Key ID: 0x18a9 3a1f 4196 bf22
'76a Eleganza II, VA
'73 Sequoia, SH, Germany
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| Re: generator cable [message #340096 is a reply to message #340089] |
Mon, 14 January 2019 06:06 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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Yes, it is a 26 with both batteries up front, From what I've seen of the price of cable I can buy a battery cheaper and a lot less labor, since I said that what do you think the smallest cranking amp battery would be suggested for a 6K Onan. I've got it set with an isolator of it's own from the battery maintainer to keep it up. Thanks for the inputs.
Skip Hartline
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] generator cable [message #340097 is a reply to message #340096] |
Mon, 14 January 2019 06:35 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Skip,
On my '76, 23', the Onan starts from the front-mounted house batteries, as
delivered in '76. That retains the redundancy for starting the engine. As
As for your use of a battery maintainer through an isolator to charge a
rear-mounted battery, don't forget that the maintainer is already a low
voltage and current device, and that the isolator will drop that low
voltage by another 0.7 VDC. That battery will never reach full charge
unless you wire it directly from the house batteries which take advantage
of the voltage feedback to the alternator to compensate for that 0.7 VDC.
Ken H.
On Mon, Jan 14, 2019 at 7:06 AM Skip Hartline
wrote:
> Yes, it is a 26 with both batteries up front, From what I've seen of the
> price of cable I can buy a battery cheaper and a lot less labor, since I
> said
> that what do you think the smallest cranking amp battery would be
> suggested for a 6K Onan. I've got it set with an isolator of it's own from
> the
> battery maintainer to keep it up. Thanks for the inputs.
> Skip Hartline
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: generator cable [message #340098 is a reply to message #340089] |
Mon, 14 January 2019 07:34 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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My 23' - Norris upfit - had both batteries up front and a heavy cable running back to the genset from the house battery. I like that setup better than the house in back batteries. When you have to boost to start, there's way less loss which means more power to the engine starter boosted than there would be with 25 feet of cable from the battery to the start solenoid. Also it's much simpler to wire an ammeter in the house circuit when the battery is up front. I seldom dry camp so I don't need a great house capacity. I'm considering moving the house battery(s) up front for this reason. I have to replace the front to rear cable anyway, the OEM looks really poor where I can see it. I doubt the hidden parts are any better.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: generator cable [message #340099 is a reply to message #340089] |
Mon, 14 January 2019 07:48 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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If you have a 26 with all batteries up front ( not familiar with that setup myself) then logically there must a heavy cable already run by the upfitter.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: generator cable [message #340102 is a reply to message #340089] |
Mon, 14 January 2019 11:00 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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skip2 wrote on Sun, 13 January 2019 19:44Evening all,
Need to get a new battery for the Onan 6K, been thinking about just running cable from the front batteries, front right to the generator, if anyone has done this before or did the factory ever do it? I'm trying to establish if 4ga would be big enough or would it take 2ga for that over 30 ft run. Thanks in advance.
Skip Hartline
Year and model of the coach?
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: generator cable [message #340104 is a reply to message #340089] |
Mon, 14 January 2019 13:45 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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I would go with the 2/0 welding as it has s low resistance and the voltage drop is minimal for that distance. I used some 0/0 cable in the other coach that I built because I got it at a low, low price. Go to Ebay and you can get a good selections of prices. You can crimp on the ends and I also solder the end too! My personal choice, yours may be different. I used this crimper for the end that I use and it works well and use your 20% and the price drops. https://www.harborfreight.com/hydraulic-wire-crimping-tool-66150.html
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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