EZ Wiring questions

My Jeep = 1968 CJ5 with original Dauntless V6 and (I believe) original alternator. I'm installing an EZ Wiring harness to replace original wiring.

1) The instructions that come with the EZ Wiring 12 circuit harness say to install the fusible link "when connecting the 10 ga. solenoid pwr = red wire". I'm not sure which terminal this connects up with on the solenoid. Can anyone coach me? I apologize if I've left out any vital bits of information

(Rant) Why wouldn't they just install the fusible link on that wire to begin with?

2) Did the original temp sensor wire have a protective metal coil around it? My current one does, but it also goes to an aftermarket temp gauge.

3) The heater fan has red and yellow wires (and a black ground), looking like original. They were not connected when I bought the Jeep. The fan switch on the heater has two posts. Do the red and yellow wires go on these posts? That would imply that the fan at low speed has one of those wires hot and at full speed has both hot. Am I in the ballpark? However, in that scenario I don't see how the heater gets current.

4) The wiper switch has a circuit breaker at the back of it. Seeing as the new harness has a fuse box, will that breaker be wired anymore when I'm done?
4a) Same question with the light switch breaker.



TIA,
Bill

 

1) The solenoid power wire connects to the large lug on the starter that the positive battery cable connects to. Attach the fusible link to the end of the solenoid
power wire and then attach the fusible link to the starter. I like to use a marine heat shrink butt splice for this connection, it helps seal things up nice and tight.
This wire is the power source for the fuse block, the fusible link protects the wire up until it goes into the fuse block.

2) The original temp sensor wire was just a wire, no protective coil. It sounds to me like you have a mechanical temperature gauge and you are looking at the line
for that gauge.

 

#3 The wires for the blower are quite confusing at first. IF you look in the duct work on the passenger side there is a resistor built into the duct work.. it will have 4 or 5 (Ive been working on a YJ system so Im not 100% on my CJ's butthey are almost the same with the resistor)

Low - power goes from the switch to the resistor on one prong then travels out the resistor on the high plug back to the switch on the High wire then goes out the the fan motor. The resistor lessens the voltage so it slows down the speed of the fan.

Meduim - same as low but it goes to the middle of the resistor so the power drop is not as much as the low speed setting.

High.. Power goes straight to the motor. The wiring going to the fan should have only 2 wires.. a power and a ground.

This is how its set up on a YJ so if its not exactly the same for the CJ Im sorry. If you have a resistor in the ductwork on the passenger side then you have this type of system.

 

Thanks, Joe

 

Sorry I forgot about #4 just wire the Wiper power to the plug on the back of the wiper switch. I dont think you can remove the breaker since it goes between the power and swtich.. just add the new wire to it.

 

Jimbo, the CJ has no duct work. I have the dash panel off and there's no resistor, either.

Come to think of it, I can't find any wiring diagrams of the late 1960's CJs with heaters. I think the old earlycj5.com technical library had several different wiring diagrams with varying degrees of accessories, but the surviving version of this page (at archive.org?) has only one for F4 and one for V6. Neither has a heater. Does anyone else have copies of those other diagrams?

Thanks,
Bill

 

Thanks, Jimbo

 

Sorry.. didnt realize you had a 68.. I misread it as a 78. If you dont have a resistor in line with the wiring Id think that the switch acted as a resistor.. Sorry I cant be of more help. Oh Im not sure ifyour using weather pack connectors or not but wanted to share what I did on my rewire. I picked up the tools to make weather pack connectors and the parts from Delcity.net. All the spare wires I had I crimped and stuck into weather pack connectors seperating them into hot and ignition on. So now If I ever need to find a source of power under the dash I just have to pull the connector and insert my new wire.sure clean install and very easy to set up. I have 2 4 prong connecotrs that are extra wires. I picked up a 21 circuit EZ wire kit.

 

Regarding rant about the fusible link, they don't install it because it is somewhat of a generic kit, not tailor made to one specific application.


Sent from my iPhone

 

Nick,

Yep, after I laid it out I realized that I have to cut the wire to length, and that would make a pre-attached fusible link a waste of effort.

Bill

 

"3) The heater fan has red and yellow wires (and a black ground), looking like original. They were not connected when I bought the Jeep. The fan switch on the heater has two posts. Do the red and yellow wires go on these posts? That would imply that the fan at low speed has one of those wires hot and at full speed has both hot. Am I in the ballpark? However, in that scenario I don't see how the heater gets current."

Not familiar with your model. But some heater fans had the hot wire direct to the fan motor, then out to the dash control which grounded the circuit. The dash control switched between circuits wired to high resistance, low resistance, or no resistance, (plus the "off" position = no circuit to ground.) The resistor coil(s) sometimes were inside the air duct to provide cooling.

 

Pete,

I opened a new thread on the heater fan switch question. The new thread includes a picture of the back of the switch that shows one of the blades broken off.

I should have added a reply on here back-linking to that thread. Sorry.

Bill

 

I saw that thread and pic, thanks. Same answer.