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Posted by D. Sherman on Sunday, April 06, 2008 at 10:54:43 :
In Reply to: Re: O.T. Got the new trolley posted by Paul (in NY) on Sunday, April 06, 2008 at 10:38:58 :
Yes, that's how this one is. I finally got most of the wiring untangled and now the oil pressure switch works properly. When you turn on the ignition, the oil pressure light and buzzer come on. You hold down the override switch while cranking until the engine starts and the pressure comes up, which only takes a second. At that point you let up the override switch. Along with various cut wires hanging in random places, and a burned-up ground wire from the instrument panel, somebody had cut the main 12 volt feed to the panel run the downstream end of it to a new low-air buzzer. Since nothing then had power, they moved the panel lamp feed wire to the main power feed (easy because the screws are right next to each other). At that point some things worked or did not depending on what other things happened to be turned on at the time. I'm still not convinced there isn't an intermittent in there somewhere. There was definitely an intermittent in a connector going to the oil pressure light due to a socket in the connect that hadn't been seated all the way into the block, probably when they built the wiring harness. I'm still not sure there isn't some other intermittent in there somewhere, but at this point the oil pressure system, the speedometer, and the various other idiot lights seem to be working. I can't believe they were driving it around with such a mickey-mouse mess of an electrical system. Now onto the P.A. system, the leaky heater core, and take pictures of the rusted-out frame and rust blisters under the paint.