Here is Chrysler fusible link color codes, Ford is the same.
Just to add a little more from what rib245 noted above.
Black 12 AWG for 8 AWG wiring
Red 14 AWG for 10 AWG
Dark Blue 16 AWG for 12 AWG
Yellow/Tan 16 AWG for 12 AWG
Gray 18 AWG for 14 AWG
Orange 20 AWG for 16 AWG
White 22 AWG for 18 AWG
I posted, maybe a yr. ago showing the current pull of one glow plug. I no longer have that since my puter crashed. One GP will pull ~25 amps ><, 8 GP's will pull ~180 ><. The zig zag metal strip off the GP relay, (which is what the GP harness is connected to) is a Chromolox heat strip, it's there to control the rush current to the GP's. Now, the high current lasts about 2-3 seconds, then slowly decreases to ~5 amps >< depending on how long the GP cycle lasts. The Chromolox strip acts as a variable resistor, as it heats up, resistance goes higher. The GP controller is timed for a max of ~15 seconds. The early 6.9 controller acts/is totally different. Since rib245 posted his background, I'll post mine. Present age almost 85.
Ford Mtr.Co Lima Engine Plt.
1957 - 1964 Journeyman Electrician-Electronics
1964 - 1967 Foreman Central Maint. Electrical/Electronics/Hydraulics
1967 - 1987 General Foreman Maintenance Plant wide.
Just to add a little more from what rib245 noted above.
Black 12 AWG for 8 AWG wiring
Red 14 AWG for 10 AWG
Dark Blue 16 AWG for 12 AWG
Yellow/Tan 16 AWG for 12 AWG
Gray 18 AWG for 14 AWG
Orange 20 AWG for 16 AWG
White 22 AWG for 18 AWG
I posted, maybe a yr. ago showing the current pull of one glow plug. I no longer have that since my puter crashed. One GP will pull ~25 amps ><, 8 GP's will pull ~180 ><. The zig zag metal strip off the GP relay, (which is what the GP harness is connected to) is a Chromolox heat strip, it's there to control the rush current to the GP's. Now, the high current lasts about 2-3 seconds, then slowly decreases to ~5 amps >< depending on how long the GP cycle lasts. The Chromolox strip acts as a variable resistor, as it heats up, resistance goes higher. The GP controller is timed for a max of ~15 seconds. The early 6.9 controller acts/is totally different. Since rib245 posted his background, I'll post mine. Present age almost 85.
Ford Mtr.Co Lima Engine Plt.
1957 - 1964 Journeyman Electrician-Electronics
1964 - 1967 Foreman Central Maint. Electrical/Electronics/Hydraulics
1967 - 1987 General Foreman Maintenance Plant wide.