Electrical/ignition system ?trips? and electrical system goes dead

[birdpiper]

We have a 1999 FourWinns 190 Horizon, 4.3GL PWTR VP engine. We had several repairs done to the engine in the past year. The engine was removed, rebuilt, and re-installed due to a head gasket failure. We are mostly past the mechanical issues, but an electrical issue has recently presented itself. Occasionally when I go to start the engine the entire electrical system will ?trip? and go dead. All power is lost ? ignition, pump, trim, lights, etc. After this happens I have to disconnect the battery for a minute in order to ?reset? the system then all electrical power comes back and I am able to start the engine.

I replaced the starter last week and cleaned (and used dielectric grease) on the starter and battery connections, but the ?trip? still happens.

Any ideas what could be causing this issue?

 

[wkb2460]

Sounds like you have an intermittent short somewhere

 

[birdpiper]

Wkb2460, Thanks for the feedback. Are there any ?usual suspects? for intermittent shorts? Relay, fuse, connection, etc?
I?m not the best at diagnosing electrical connections, any guidance is appreciated.

 

[bruceb58]

Did you have an overheat at some point? If so, look for any wires that run by the exhaust and look for melted wires.