Engine Wiring Question

[VandalS]

I'm planning to do a body swap this weekend and want to check which wires I need to keep. If I've got it sorted, the only wire for the engine from the cab is the ignition to starter and ignition to GP controller. There are sensor wires for the oil P, water T, and tach. Is everything else pretty self contained or found in the chassis harness? I'd like to start pulling the body and have the donor cab (Jeep) ready to go.

On my engine, I've removed the manual fuel pump and the fuel heater/water separator (replaced with a full fuel/water separator unit) and also removed the A/C compressor.

 

[chillman88]

There's also the fuel shutoff solenoid and the high idle/cold advance that receive ignition power while running.

 

[VandalS]

There's also the fuel shutoff solenoid and the high idle/cold advance that receive ignition power while running.

Do these feed directly off the ignition switch or is there a relay/secondary circuit?

 

[chillman88]

Do these feed directly off the ignition switch or is there a relay/secondary circuit?

Honestly I'm not sure. I could probably look it up later if I can remember.

I found this place and it's where I usually look for wiring questions.
http://www.wilsonautoelectric.com/TSBDatabase

 

[laserjock]

The high idle and cold adv are fed by the temp switch which is fed by key on power.

 

[VandalS]

The high idle and cold adv are fed by the temp switch which is fed by key on power.

Is that the temp switch/sender in the top/front of the block or is that sender only for the gauge?

 

[IDIBRONCO]

The sender in the block is for the gauge. The one in the head, slightly below and behind it, is for the temp light.

 

[VandalS]

The sender in the block is for the gauge. The one in the head, slightly below and behind it, is for the temp light.

Good to know. I'm planning to put a new gauge sensor in this weekend. Hopefully I'll have a working gauge then. I'll keep an eye out for the other wires you listed.

 

[laserjock]

It's the one right beside the thermostat housing.

 

[IDIBRONCO]

That's the one for the fast idle, not the temp gauge. This is the one he was asking about now.

 

[VandalS]

Thanks for the help, all answers have cleared up what I'm looking for and what I need to replace to make this swap go well. I'm almost done adapting the hydroboost to the jeep cab and then I'm going to start pulling apart the ford body to prep the chassis.

 

[raydav]

Do these feed directly off the ignition switch or is there a relay/secondary circuit?

I currently have six vehicles that run and a couple more in-work. When ever I touch wiring I use that as excuse to get high power circuits out of the cab. Head lights, fuel pump, distributor, fans, transmission,,,. I mount a fuse block and relay bank close to the battery.

This is one of my cleaner installations. The relays, fuses and starter relay are clustered on the right in front of the shock tower. The relays interlock so you only need to mount a couple of them.
https://photos.google.com/album/AF1.../AF1QipN_StXTUtKXm3bK0QqrA9FmQz9tIzwYI3pHbU4l