electrical nightmare continues.

[bandit86]

I have about a dozen small wires run right to the batteries. most of them I now know what, bilge pumps, fridge, radio memory, but I found one that makes me wonder. The trim power supply goes right to the battery. Without a fuse. Is that a good idea? I'm going to put a 20A fuse inline, think it should be enough, but should I leave it right on the battery?

 

[jtexas]

Re: electrical nightmare continues.

Is it a good idea? My tilt isn't fused either - it's an OMC accessory unit sold with the 70hp in 1979 - dealer-installed I believe but the schematic doesn't show a fuse. And it doesn't have a relay - the switch carries all the current. I'm going to leave it be. It's also wired right to the batt.<br /><br />You could try 20A - I'd be tempted to put in a 30A circuit breaker. And I'd definately leave it on the battery.

 

[bandit86]

Re: electrical nightmare continues.

I moved it up to the common on the battery disconnect, but didnt put a fuse on it. I'm going to look into getting a ground and power bus bar for everything hooked to the battery, maybe run the trims off that

 

[302]

Re: electrical nightmare continues.

Bandit for whats it's worth my tabs had a breaker next to the trim unit tried to reset with negative result. My friend whoes a boat mechanic disconnected the trim swicht from console pulled the wires and found inline circuit breaker reset it back in business. Good luck.

 

[MrBigStuff]

Re: electrical nightmare continues.

Just remember, the job of the fuse is to protect the wiring from burning up in the event of a short or overload. A fuse or breaker rated higher than the wiring is doing no good. I'd measure the draw, add 10% for peak current draw and then check the wiring to insure it's rated for the load. If so, put in an appropriately sized fuse or breaker.