Jeep Engines - Oljeep

356 MOPAR PERFORMANCE PARTSWhen the solenoid plunger hold-in coil is de-energized, thesolenoid plunger return spring returns the plunger to itsrelaxed position. This causes the contact disc to open thestarter feed circuit, and the shift lever to disengage theoverrunning clutch and pinion gear from the starter ring gear.Starter MotorThe starter motor is mounted with two screws to theautomatic transmission torque converter housing and islocated on the right side of the engine.The starter motor incorporates several features to create areliable, efficient, compact, lightweight and powerful unit.The electric motor of the starter features four electromagneticfield coils wound around four pole shoes, and four brushescontact the motor commutator. The starter motor is rated at1.4 kilowatts (about 1.9 horsepower) output at 12 volts.The starter motor is equipped with a planetary gearreduction (intermediate transmission) system. Theplanetary gear reduction system consists of a gear that isintegral to the output end of the electric motor armatureshaft that is in continual engagement with a larger gear thatis splined to the input end of the starter pinion gear shaft.This feature makes it possible to reduce the dimensions ofthe starter. At the same time, it allows higher armaturerotational speed and delivers increased torque through thestarter pinion gear to the starter ring gear.The starter motor is activated by an integral heavy dutystarter solenoid switch mounted to the overrunning clutchhousing. This electromechanical switch connects anddisconnects the feed of battery voltage to the starter motorand actuates a shift fork that engages and disengages thestarter pinion gear with the starter ring gear.The starter motor uses an overrunning clutch and starterpinion gear unit to engage and drive a starter ring gear thatis integral to the torque converter drive plate mounted onthe rear crankshaft flange.The starter motor is serviced only as a unit with its startersolenoid and cannot be repaired. If either component isfaulty or damaged, the entire starter motor and startersolenoid unit must be replaced.ManufacturerEngine ApplicationPower RatingVoltageNumber of FieldsNumber ofBrushesDrive TypeFree Runnina Test VoltaaeMitsubishi4.0L, 4.7L1.4 Kilowatt (1.9 Horsepower)12 VoltsI Number of Poles I 4 IFree Running Test Maximum Amperage DrawFree Running Test Minimum SpeedSolenoid Closing Maximum Voltage Required*Cranking Amperage Draw Test*Test at operating temperature. Cold engine, tight (new) engine,44Planetary Gear Reduction11.2 Volts7.8 Volts