simplified wiring for IH 656

Posted by GwenI on July 12, 2009 at 10:33:48 from (98.134.10.38):

Hi there,

I am trying to bypass all of the non essential components of the wiring on my Diesel, "68 IH 656. The original harness is in terrible condition with corrosion and bare wires all over the place. It started ok up until a couple months ago, but then it wouldn't start and i began this project of rewiring critical components and opened up a can of worms when i found out exactly how bad the existing wiring was. So far i ran direct wires from the starter solenoid to the start button and back, i also, disconnected all the gauges, lights, etc. I then ran a direct line from the hot terminal on the starter solenoid to the glow plug warm button. However, i have gotten stuck with the ignition switch. I had thought it was supposed to be the cut off to all the other components, but it didn"t appear to be wired that way. The existing wiring seemed to have a hot wire coming into one terminal of the ignition switch, and then continuing on to the box up under the dash that i believe is a fuse box of some description (the other wires from the box go to the alternator, and there is also one going back to the hot terminal of the solenoid). The existing wire from the other terminal of the ignition switch just ended in a corroded broken piece.

So now i don"t know what to do about this ignition switch? Should i have the hot come through the switch from the solenoid, which would essentially just switch the "fuse box"? or does the hot actually come from the "fuse box" side and i should route the hot to the glow plugs and ignition through the switch?

any assistance in telling me how to rig this tractor in the most simple wiring strategy possible would be greatly appreciates...

specifically;

what is the ignition switch supposed to be switching?

what is this "fuse box" and how should it be wired in?

and, am i missing any other critical components that i shouldn"t have bypassed?

thanks so much

Gwen

Replies:

• Re: simplified wiring for IH 656 GwenI 13:59:52 07/12/09 (0)
• Re: simplified wiring for IH 656 TractormanNC 12:18:08 07/12/09 (0)

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