Emergency Start Button

jrurhh

Member
Jul 21, 2009
62
Boston, MA
Boat Info
340 Amberjack
Engines
Twin 7.4 inboards
After being anchored for two day,s my port engine wouldn't start and I tried to use the emergency start button. I had the starboard engine running and all it did was trip the breaker on the that engine and shut it down. I gave it two tries and both time the same thing happened.

Anyone have any idea as to why this happened and how to correct it. It was always a good piece of mind knowing I could use one engine to jump start the other.

It was no big deal swapping out the battery and it didn't put a damper on a great 4th of July on the Charles River in Boston!
 
The emerg. start is just a bridge between the batteries to allow you to use one battery to jump start the other w/o using jumper cables. If it trips a breaker my guess would be that there is a faulty connection, or the battery is / was so dead that the load on the battery (which was powering an engine that was on) was too much and tripped the breaker.

Is the engine that CAN start supposed to be running when your using the emerg start and starting the other engine?
 
The emerg. start is just a bridge between the batteries to allow you to use one battery to jump start the other w/o using jumper cables. If it trips a breaker my guess would be that there is a faulty connection, or the battery is / was so dead that the load on the battery (which was powering an engine that was on) was too much and tripped the breaker.

Is the engine that CAN start supposed to be running when your using the emerg start and starting the other engine?

I was going to offer a similar suggestion...if you haven't tried it already, try starting the port engine with the emergency switch engaged and the starboard engine off.
 

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