FASTENER DESCRIPTION
TORQUE SPECIFICATIONS
SAE METRIC
Pulley Nut 120 ft. lbs 162.7 Nm
Heat Sink, Cover Plate, Control Box Hold Down & Relay Terminal Screw 20 in. lbs. 2.3 Nm
Phase Terminal Screw 20 in. lbs. 2.3 Nm
Ground Bolt 11 ft. lbs. 15 Nm
Front & Rear Housing Hold Down Nut
18 in. lbs. 2.0 Nm
Tension Adjust Bolt
18 ft. lbs. 24.4 Nm
Rotor Hold Down Screws
45 ft. lbs. 61.0 Nm
Output Lead Bolt 11 ft. lbs. 15 Nm
Output Nut 20 – 22 ft. lbs. 27.1 – 29.8 Nm
Energize Terminal Nut 60 – 70 in. lbs. 6.8 – 7.9 Nm
Regulator Hold Down Screw
(for taptite screws)
32 in. lbs.
45 in. lbs.
3.6 Nm
5 Nm
Fan Nut 50 ft. lbs. 67.8 Nm
Field Coil Screw
8 – 10 in. lbs. .9 – 1.1 Nm
ALTERNATOR DIMENSIONS
1. Mounting Bolt - 1/2 UNC; 45 ft.lbs. (61 N.m) torque 5. Voltage Regulator
2. Mounting Bolt - 12/50 Dia; 65 ft.lbs. (88 N.m) torque 6. Fan Nut; 50 ft.lbs. (68 N.m) torque
3. Ground Bolt, 3/8 - 16; 11 ft.lbs. (15 N.m) torque 7. Slip Bushing
Either Side; R.H. side shown 8. Allowable Mounting Bracket Dimensional Span
4. Locknut (5/16 - 18 UNF-2B) & Washer (to secure Pulley) 9. F+ Stud (NOTE: F+ Stud Not On All Models)
M13-2 Niehoff Alternator Overhaul Manual M13003 04/01
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