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Post by 83rangerguy on Apr 15, 2015 16:34:47 GMT -5
Can someone please explain to me, in very basic terms (wiring for dummies) how to wire up a manual switch for my glow plugs? I have a momentary switch and a heavy-duty relay but I'm not quite sure how to go about this in the right way. Living in Alaska I need my glow plugs pretty much year around. Please help!
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Post by gradyc on Apr 16, 2015 23:00:22 GMT -5
There are different types of relays and they have to be wired differently. The operating coil either has one wire hooked to the mounting base which is called a grounded base or it has both coil wires hooked to small posts which is an insulated base. First find a place to get power from and hook it to one terminal of the momentary switch, then hook the other terminal from the switch to the coil of the relay. If it is a grounded base relay then bolting it to the body or engine finishes the small wiring. If it is an insulated base the other small post has to have a wire attached and hooked to a good ground on the body or engine. Next hook a heavier wire to one of the large posts of the relay and the other end of it to the battery. The other large post has a wire that hooks to the glow plugs. Be careful not to hold the switch on too long or you might burn out the glow plugs.
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Post by dieseldawg on Apr 17, 2015 13:28:56 GMT -5
Older Fords used a starter relay/solenoid mounted on the inner fender. It is the grounded base type.  |
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Post by DieselDangerRanger on Apr 18, 2015 11:01:20 GMT -5
If you have the original wiring it is relatively simple to wire the existing relay to your momentary on switch. There are two solenoids on my ranger. The one mounted on the starter is the one that controls the glowplug circuit directly. The other mounted on the firewall controls them throught an intake heater resistor, dropping voltage. In my former configuration, I had a simple hi-amp (50+ rated) insulated push-button wired in series with the glow-plugs. Heavy (8 ga. I think) wire from battery positive into cab, attached to one pole of the switch. Another connected to the other pole back out to the engine and wired directly to the glow-plug harness connector. Had to be very careful about shorts and grounds but managed o.k. for quite a few miles and negative 30 degree starts.
With solenoid, you wire up both sides (hi-amp and control). Control would be same as wiring up glow-plugs direct except small wire and small switch. Then you have a similar hi-amp circuit to wire up to the solenoid - heavy cable to battery positive and heavy cable to glow-plug harness. The circuit is completed through the negative cables to the engine block. Did you know the electrons actually flow from neg. to pos.?
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