73 f250 solenoid
#1
73 f250 solenoid
getting truck ready to fire up, is there any factory wiring from cab side of engine compartment that goes to starter side of solenoid? or does all wiring w/fusable links from cab side of engine compartment go the the battery side of solenoid? The wiring in question is for two connectors with fuseable links
thanks
Jeff
thanks
Jeff
#3
#4
Agreed with all posts above.
1) The large stud on the battery-side of the solenoid connects to the main power feed into the cab, and the alternator output. Both connect through fusible links. This is the hot-at-all-times primary power distribution point in the truck. Obviously, the positive battery cable ties here as well.
2) The small 'S' post of the solenoid is hot-in-START from the ignition switch, and is RED with a BLUE stripe.
3) The small 'I' post of the solenoid is the coil start bypass signal (BROWN). It is hot when the solenoid is energized.
4) The other large starter-side post connects to the starter ONLY.
Note that the small 'I' post of the solenoid as well as the large starter stud are both powered from the solenoid when the solenoid is engaged, but they are isolated when the solenoid is de-energized. This is to isolate back-EMF from the starter from the coil bypass wire that's generated when the starter is cut off.
1) The large stud on the battery-side of the solenoid connects to the main power feed into the cab, and the alternator output. Both connect through fusible links. This is the hot-at-all-times primary power distribution point in the truck. Obviously, the positive battery cable ties here as well.
2) The small 'S' post of the solenoid is hot-in-START from the ignition switch, and is RED with a BLUE stripe.
3) The small 'I' post of the solenoid is the coil start bypass signal (BROWN). It is hot when the solenoid is energized.
4) The other large starter-side post connects to the starter ONLY.
Note that the small 'I' post of the solenoid as well as the large starter stud are both powered from the solenoid when the solenoid is engaged, but they are isolated when the solenoid is de-energized. This is to isolate back-EMF from the starter from the coil bypass wire that's generated when the starter is cut off.
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