Where to find wiring harness diagram?

[CAGE RATTLER]

I'm putting in a new (12 switch) 12v switch panel and noticed all the main wires to the switches are numbered and was wondering where i might find a diagram to show me which numbered wire goes where.

I'm labeling as i take off but if i had a diagram that would make it even easier.

I believe its a 10 pin wiring harness from the engine if that matters.

 

[Theresamarie11]

Depends on what it's for. If it's the boat harness and wiring then try the sea ray manuals on the sea ray site. I think that's what you're looking for.

 

[CAGE RATTLER]

Depends on what it's for. If it's the boat harness and wiring then try the sea ray manuals on the sea ray site. I think that's what you're looking for.

Thank you very much for the reply.

For some reason i thought it would be part of the engine harness and needed to find a diagram from mercruiser. Doing electrical work is definitely out of my comfort zone but after my last dealing with a marine electrician, I'll stick to figuring it out myself.

Found the manual for my boat on sea rays site and found the diagram i needed. Actually i had downloaded that before and forgot all about it.
I knew i had seen the diagram before.

Unfortunately the previous owner had done some re-wiring and not all original wiring connections are working but i got most of it figured out.
Only thing left to get straight is the blower and rear bilge pump. Looks like 2 yellow wires were connected to the fuse holder (for the blower) on the old panel but my new one does not have anywhere to connect those.

I do have a question though........ Should the step down bilge pump work automatically (by the float switch) when the battery switch is off??
Mine has always been that the batteries would need to stay on for the float switch to work and its the same way now too. The back bilge pump is direct wired to the batteries so it works when batteriy switch is off but i dont think the forward pump is direct connected.

 

[Theresamarie11]

Thank you very much for the reply.

For some reason i thought it would be part of the engine harness and needed to find a diagram from mercruiser. Doing electrical work is definitely out of my comfort zone but after my last dealing with a marine electrician, I'll stick to figuring it out myself.

Found the manual for my boat on sea rays site and found the diagram i needed. Actually i had downloaded that before and forgot all about it.
I knew i had seen the diagram before.

Unfortunately the previous owner had done some re-wiring and not all original wiring connections are working but i got most of it figured out.
Only thing left to get straight is the blower and rear bilge pump. Looks like 2 yellow wires were connected to the fuse holder (for the blower) on the old panel but my new one does not have anywhere to connect those.

I do have a question though........ Should the step down bilge pump work automatically (by the float switch) when the battery switch is off??
Mine has always been that the batteries would need to stay on for the float switch to work and its the same way now too. The back bilge pump is direct wired to the batteries so it works when batteriy switch is off but i dont think the forward pump is direct connected.

Well I can only tell you what my boat manual says. It says "the blige pump, emergency bilge pumps, sump pump, battery chargers and aft EIM unswitched remain energized at all times and CANNOT be switched off". I have 4 pumps on my boat. 2 aft bilge pumps, 1 sump pump and one fwd bilge pump and they all remain on even if the battery switch is off.

 

[Big Island Lifer]

Thank you very much for the reply.

For some reason i thought it would be part of the engine harness and needed to find a diagram from mercruiser. Doing electrical work is definitely out of my comfort zone but after my last dealing with a marine electrician, I'll stick to figuring it out myself.

Found the manual for my boat on sea rays site and found the diagram i needed. Actually i had downloaded that before and forgot all about it.
I knew i had seen the diagram before.

Unfortunately the previous owner had done some re-wiring and not all original wiring connections are working but i got most of it figured out.
Only thing left to get straight is the blower and rear bilge pump. Looks like 2 yellow wires were connected to the fuse holder (for the blower) on the old panel but my new one does not have anywhere to connect those.

I do have a question though........ Should the step down bilge pump work automatically (by the float switch) when the battery switch is off??
Mine has always been that the batteries would need to stay on for the float switch to work and its the same way now too. The back bilge pump is direct wired to the batteries so it works when batteriy switch is off but i dont think the forward pump is direct connected.

My step down is wired the same as the bilge pump. I don't want the cabin filling up with water if I have a window leak in a storm.

 

[CAGE RATTLER]

Yeah, I would definitely like it that way too but its not, so I leave the battery switch on so its in automatic mode.

Im putting on a windlass and thinking about putting a battery in the cabin area or under the captains seat storage area so i may do a direct connect to the forward pump then.

The fear of the cabin flooding also worries me too and as far as i know, the cabin would have to completely flood before any water gets back to the bilge pump.

Right now though thats the least of my worries cause i cant get the bilge pump or blowers to work at all.