10 Si Wiring Diagram

10si and 12si are delco remy model number designations but not part numbers.

10 si wiring diagram. This diagram shows how to wire a delco gm internally regulated 3 wire alternator this particular model 10si used in the 1970s and early 80s is the one you ll find on the generation of gm cars most often used in demolition derbies. Gm 10si 2 wire diagram 12v neg ground gm 10si one wire diagram 12v neg ground gm 10si one wire diagram 6v neg. This diagram shows how to wire a delco gm internally regulated 3 wire alternator. Wiring an alternator.

With key on power is then transferred through the no charge indicator light to the 1 spade on the alternator regulator connection. Assembly positions provides for proper exit of the wiring from the alternator. Also available is an ammeter package 1965400. The delco 10 si alternators are pretty inexpensive too.

Failure to use proper eye protection can lead to serious and permanent eye damage. The 10si has three terminals including those with a 1 wire regulator. The si stands for systems integrated which means the alternator has the voltage regulator built inside the alternator. As opposed to the earlier 10dn series alternator which was an externally regulated alternator.

Download delco remy 10si wiring diagram close download housing and collar installation in 10si 11si alternator delco remy 10si 11si 12si or bosch k1 alternators with 11si. Some other tidbits available from ac delco for wiring up a 10si is wiring package 1870921 for those 6 to 12volt conversions. This contains the terminal connector and an extra resistance wire pigtail to connect to the ignition system don t use a ballast resistor if you use a resistance wire. The 10 si alternator was the most common standard equipment alternator installed on gm cars light trucks from the early to late 70 s.

Lastly connect a wire from the 4 terminal to the 1 or r terminal on the alternator. You can now take advantage of the availability and reliability of a 10 si unit without major alterations to your original wire harness or engine compartment appearance. 10si 12si 15si alternator installation instructions warning always use proper eye protection when performing any mechanical repairs to a vehicle including but not limited to any installation and or repairs to the delco remy alternators. Operating principles and wiring diagram of 10si and 15si alternators.

This particular model 10si used in the s and early 80s is the one. We are commonly asked how to wire the delco si series alternators upon maintenance or upgrading from an older generator.