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Formula 292 twin 6.2L Mercs no power to breaker

Old 03-04-2023, 04:36 PM
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Default Formula 292 twin 6.2L Mercs no power to breaker

Working on a twin engine 6.2L Formula 292 2006. One engine works fine the other has no power to the 50 amp breaker. Checked ignition switch, kill switch, ign breaker under dash, main power switch, starter has power, 20 amp breaker has power. Any ideas? Were does the power come from? I do not have a service manual for this engine.
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Old 03-04-2023, 05:04 PM
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power comes from the battery cable hooked to the starter where the fuse is, then it goes up to the breaker on top, you have power on the fuse lug on the starter ?
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Old 03-04-2023, 05:30 PM
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Originally Posted by F-2 Speedy
power comes from the battery cable hooked to the starter where the fuse is, then it goes up to the breaker on top, you have power on the fuse lug on the starter ?
Thats what I thought, I have power at the starter but not at the breaker. Is there another fuse at the starter? Its really hard to get to anything, the starter is way down there.
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Old 03-04-2023, 05:35 PM
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Originally Posted by jeffswav
Thats what I thought, I have power at the starter but not at the breaker. Is there another fuse at the starter? Its really hard to get to anything, the starter is way down there.
There should be a fuse that looks like this, on the big terminal where the heavy gauge battery cable attaches to the starter solenoid.



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Old 03-04-2023, 05:45 PM
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Originally Posted by DrFeelgood
There should be a fuse that looks like this, on the big terminal where the heavy gauge battery cable attaches to the starter solenoid.


Thanks, hopefully this is the problem. I have checked everything else.
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Old 03-04-2023, 05:49 PM
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Thats the fuse I asked if you had voltage on
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Old 03-05-2023, 10:19 AM
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The fuse was the problem. Wanted to get confirmation before climbing between the engines. Thanks for the help.
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Old 03-08-2023, 10:43 AM
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Unfortunately the fuse blew. I have a shorted wire. Orange and Red wire are both shorted to ground with starter and circuit breaker disconnected. The factory wiring harness is not made for easy repair lol.
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Old 03-08-2023, 11:08 AM
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Disconnect orange wire from alternator post
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