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3G Alternator

From 1985 Ford Bronco “Blue”, documented by Chris Bradley.

41 photos
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1985 Ford Bronco - Remove the old alternator. 1985 Ford Bronco - Disconnect the old wiring. 1985 Ford Bronco - Remove the original tape to expose all the wires. 1985 Ford Bronco - Remove all this wiring, along with the voltage regulator. 1985 Ford Bronco - What is left of the original harness. 1985 Ford Bronco - 3G on the left, 1G on the right. 1985 Ford Bronco - I had to use a flat washer to clearance the old pulley on the new alternator. 1985 Ford Bronco - Two automotive alternators are displayed on a wooden workbench. The alternator on the left is a complete unit with a pulley, while the one… 1985 Ford Bronco - The new harness. 1985 Ford Bronco - I had the Taurus wiring harness, which got me the plug and the boot for the charge cable. 1985 Ford Bronco - I removed an 1/8" from each side of the plastic housing. 1985 Ford Bronco - Then did some dremel work to the outside of the lug to make it fit. 1985 Ford Bronco - A close-up, overhead view of a vehicle alternator with wiring harness connected and a battery cable lying nearby on a wooden surface. 1985 Ford Bronco - A close-up, overhead view of a used alternator, likely from a Ford vehicle, resting on a wooden workbench. The alternator shows some wear a… 1985 Ford Bronco - A close-up view of an alternator part, with a finger pointing to a black rubber boot covering a terminal. The alternator is mounted on a wo… 1985 Ford Bronco - 3G Alternator Swap 1985 Ford Bronco - A car alternator is shown on a wooden workbench with various tools and supplies, including a roll of solder, zip ties, and a red box labele… 1985 Ford Bronco - The cable from the alternator to the HMEG fuse is 30". 1985 Ford Bronco - A close-up view shows a rebuilt alternator with a wiring harness attached, resting on a wooden surface next to a tape measure. The alternat… 1985 Ford Bronco - One half of the Pico weatherpack on the green wire. 1985 Ford Bronco - The HMEG fuse holder. 1985 Ford Bronco - A black plastic automotive part with two bolts and nuts is shown resting on a wooden surface. The part appears to be a cover or housing for… 1985 Ford Bronco - A black Bussmann fuse holder with a rubber cover is shown resting on a weathered wooden surface. The fuse holder has a clip closure and mou… 1985 Ford Bronco - I mounted the HMEG fuse holder where the old voltage regulator was. 1985 Ford Bronco - This is the cable that goes from the HMEG fuse holder to the starter solenoid. 1985 Ford Bronco - A close-up view of electrical components mounted to a rusty metal surface, likely in an engine bay. Visible parts include a silver solenoid… 1985 Ford Bronco - I had to bend the lower bracket just bit to mount the 3G. 1985 Ford Bronco - I ran the charge cable next to the batteries. 1985 Ford Bronco - The green wire connected. 1985 Ford Bronco - Now to connect all the other wires to the fuse holder. 1985 Ford Bronco - All done. 1985 Ford Bronco - Fan on hi, wipers on, and hi-beams on. 1985 Ford Bronco - Autometer Z-Series, short sweep, #2645. 1985 Ford Bronco - I tapped into an ignition source on the factory fuse block, but the reading isn't to accurate. Throughout the first day of having it, it re… 1985 Ford Bronco - My meter read 14.4v at the battery and the fuse block. 1985 Ford Bronco - Perfect. 1985 Ford Bronco - Basic schematic of old charging system. 1985 Ford Bronco - Sample of old wires that need to be removed. 1985 Ford Bronco - More detailed schematic of old charging system. 1985 Ford Bronco - Basic schematic of new charging system. 1985 Ford Bronco - More detailed schematic of new charging system, showing how to integrate with the old wiring..