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Old 03-29-2013, 11:18 AM   #1
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Need help 73 superior

I was recently given a 1973 superior 2500 belonging to late grandfather.it has been siting for at least 7 to 10 yrs and hasn't moved. The last anyone recalls it was running fine when parked. The issue I'm having is when I replaced the 2 battery's all that comes on are the 12volt accessories like lights and fans. When the ignition key is turned on, I get nothing. No dash lights or nothing. It's as if I'm missing a switch or something that throws the power to start motor home. C

Can someone tell me if there is a breaker switch or fuse that would be preventing power to the main engine. I'm a pretty good mechanic. I could make it run if I have to but I don't want I tare it all apart if I'm just missing a switch somewhere.

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Old 03-29-2013, 11:37 AM   #2
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Ford Super Duty Owner
Join Date: Aug 2012
Location: costa rica / river ranch fl.
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most motorhomes have house battrys for lights ect. plus a start battery
for the engine so you may not have a battery hocked up to start it ?

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Old 03-29-2013, 11:44 AM   #3
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Location: Las Vegas, NV
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There may be a chassis battery disconnect switch located somewhere in the coach, also you might check for a blown in-line fusable link in the wire from the positive terminal on the chassis battery that supplies power to the ignition switch, and if you have a voltmeter, check for power at the supply side connector on the ignition switch.

Good luck and keep us posted on your progress..
Jim & SherrySeward

2000 Residency 3790 v10 w/tags 5 Star tune & Banks system Suzuki XL7 toad
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Old 03-29-2013, 11:48 AM   #4
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Location: Colorado
Posts: 290
Check connections. Make sure you have power to your starter. Also make sure your ignition has power. Just take a test light and do a quick test. If all of those have power Take the starter out and have a shop (carquest, napa, etc) test it. However before any of this check fuses!!! Also with it sitting for a long time there may be corroded connections. Another thing, what have you done to prep the motor for starting after that many years? Gas is most likely bad and the cylinders need pre lube etc etc
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Old 03-29-2013, 03:17 PM   #5
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I have 2 up front and 1 rear for gen.
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Old 03-29-2013, 03:19 PM   #6
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I will do some voltage check tomorrow. Thanks for information. Ill keep ya posted.

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