bilge blower ground wire

[gabe]

I have a 1979 C30 that I bought last October. This morning I undertook to fix the bilge blower, which is mounted on the aft wall of the port lazarette. After removing the back cover to the engine ignition panel and testing the blower switch (OK), I clipped the red and black wires off the blower, removed it, and connected it directly to the battery. It ran. So I reconnected the red wire to the engine panel and shorted the black wire. Ran again. Re-installed the blower, reconnected the ground wire, and traced (for the third un-successful time) the ground wire, which disappears down the hole with the out-take engine venting hose and re-appears behind the aft galley drawers. This time I pulled a little on the ground wire from where it disappears again under the floor of the galley, and it seemed to be loose. So I pulled some more and the entire wire came out. The end of the wire looked clipped and old.The moral of the story: check ground first.Now I have to reconnect the ground wire somewhere, but I have no idea where it goes. The wiring diagrams don't mention the blower. Anyone know where this needs to be grounded?

 

[Paul]

Ground

It doesn't matter where it goes. You can connect it to any grounding point on the boat ie the neg battery terminal, a neg bus or even your engine block. No matter where you hook it it all comes back to the neg side of the battery eventually.It's the pos wire that's important. Make sure that wire is connected to the proper switch or breaker.If it were my boat I would hook the neg wire of your blower to any convenient grounding point and I would make sure that nothing else is suppose to be connected to the broken wire you found. Good luck.