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wc16
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Joined: Aug 30, 2011
Posts: 11
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 Posted: Mon Aug 24, 2015 9:42 am Post subject: Battery cut off switch |
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| I would like to install a cut off switch on the battery circuit of my M38. There is a knife switch type but the battery box lid is too close to the battery. There isn't enough room for the round knob twist type. Anyone have any thoughts? thanks |
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RICKG
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Joined: Aug 31, 2010
Posts: 1744
Location: SO IDAHO
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| Posted: Mon Aug 24, 2015 10:34 am Post subject: |
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Mounted outside the box at the ground to frame cable.
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keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a |
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BCA
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Joined: Jul 02, 2011
Posts: 134
Location: Milton, Ontario
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| Posted: Mon Aug 24, 2015 10:51 am Post subject: |
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On the M38A1 I prefer the military T-handle switch as shown above but I install it on the removable heater access plate on the passengers toe-board.
It is in easy reach of the driver by reaching across the jeep and because it is handy it always gets used. Never a problem with foot interference. Plus the M38A1 ground cable is right nearby so you only need a short cable to ground the switch (I use M38 battery to ground cables for this extra wire. For my M38's I use the same toe-board position but need about a 30" cable to go from the engine compartment battery negative terminal to the switch. The original short M38 ground cable is then used at the switch to go to the frame. Battery kill switches under the hood make it harder to use and harder to get at if you have a emergency. |
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Bretto
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Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT
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| Posted: Mon Aug 24, 2015 5:28 pm Post subject: |
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BCA I see your point, but some of these switches are installed to deter theft and they are placed in a hidden spot. I suppose to have the best of both worlds you could run 2 switches in series.
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Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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RICKG
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Joined: Aug 31, 2010
Posts: 1744
Location: SO IDAHO
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| Posted: Tue Aug 25, 2015 11:41 am Post subject: |
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The location for my switch was simply the most logical point mechanically and electrically.
Ease of access and/or hideability were secondary.
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keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a |
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Bretto
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Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT
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| Posted: Tue Aug 25, 2015 1:22 pm Post subject: |
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Where was your source again for those Rick? I remeber way back you mentioned it.
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Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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RICKG
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Joined: Aug 31, 2010
Posts: 1744
Location: SO IDAHO
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| Posted: Tue Aug 25, 2015 1:55 pm Post subject: |
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Grumpy John B @ MWM 
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keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a |
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Bretto
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Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT
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G740
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Joined: Jan 27, 2006
Posts: 500
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| Posted: Tue Aug 25, 2015 7:07 pm Post subject: Grumpy |
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I closely resemble that remark. Mr. G, I will get even!
John |
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Bretto
Member
Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT
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| Posted: Wed Aug 26, 2015 5:25 am Post subject: |
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Your days of getting quality parts are over Rick.
_________________
Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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RICKG
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Joined: Aug 31, 2010
Posts: 1744
Location: SO IDAHO
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| Posted: Wed Aug 26, 2015 9:18 am Post subject: Re: Grumpy |
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| G740 wrote: | I closely resemble that remark. Mr. G, I will get even!
John |
GOTCHA!!!
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keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a |
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M606BR
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Joined: Dec 09, 2013
Posts: 31
Location: Rio de Janeiro, Brazil
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| Posted: Thu Aug 27, 2015 6:59 pm Post subject: |
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My cut off switch is installed at the firewall (through hole #12). It works fine and is placed in a hidden spot behind instrument panel. Not difficult to access.
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Luiz Felipe Santos
1952 M38
1965 M606 |
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ACRay
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Joined: Jul 24, 2014
Posts: 80
Location: Fort Bliss Texas
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| Posted: Fri Nov 20, 2015 9:30 am Post subject: |
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| RICKG wrote: |
Mounted outside the box at the ground to frame cable. |
I'm planning on driving my M38 to work more than I probably should since it's a piece of history and all, but I LOVE driving it. I'm going to steal your Idea with the T-Handle master power switch I think Rick... Now if I could get my hands on 4 of them that would be great ... I actually found this thread searching online because 3 of my Platoon's M113s master power t handles are busted and we need to kinda "bypass" them to get the things moved to the mechanic's bay in the motorpool.
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Aaron Ray
1952 M38
MC71767 |
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