4C - 12 - CHARGING SYSTEM
90-816462 2-695
IMPORTANT: With alternator disassembled to
this point, stator, rectifier, diodes, and rotor may
be tested, as explained under “Component Test-
ing,” following.
IMPORTANT: DO NOT clamp vise on rotor pole
pieces when removing pulley nut (in next step),
as pole pieces may be distorted.
12. Remove pulley retaining nut by clamping pulley in
a vise (using an oversize V-belt or protective jaws
to protect pulley) and turning nut counterclock-
wise with a 7/8 in. wrench. Remove lockwasher
and slide pulley and fan from shaft. If pulley is diffi-
cult to remove, it may be necessary to use a uni-
versal puller.
72828
a - 7/8 In. Wrench
b - Over-Sized V-Belt to Protect Pulley
b
a
13. Remove the three Phillips head screws and lock-
washers which secure the front bearing retaining
plate.
72829
a - Phillips Head Screws and Lockwashers
b - Front Bearing Retaining Plate
b
a
14. Remove front bearing from front end frame using
an arbor press and a suitable size mandrel. (Dis-
card bearing.)
72830
b
a
c
a - Press
b - Mandrel
c - Bearing
15. If rotor slip rings or rear bearing requires replace-
ment, entire rotor must be replaced. Parts cannot
be purchased separately.
Cleaning and Inspection
1. Clean all parts with a clean, soft cloth. DO NOT
use solvent, or electrical components may be
damaged.
2. Inspect the following parts for wear and damage:
a. Brush/regulator assembly - inspect for
cracked casing, damaged brush leads, poor
brush lead solder connections, weak or bro-
ken brush springs or worn brushes. Replace
brush set if brushes are less than 1/4 in. (6
mm) long.
b. Rotor - inspect for stripped threads, scuffed
pole piece fingers or damaged bearing sur-
faces (because of bearing turning on shaft).
c. Rotor-slip rings - clean slip rings with 400
grain (or finer) polishing cloth while spinning
rotor in a lathe. Blow off dust with compressed
air. Inspect slip rings for grooves, pits, flat
spots or out-of-round [.002 in. (0.051 mm)
maximum] and replace rotor, if present.
Summary of Contents for 13
Page 1: ...13 Printed in U S A 90 816462 2 695 1995 Brunswick Corporation GM 4 Cylinder MARINE ENGINES ...
Page 2: ...90 816462 2 695 0 ...
Page 7: ...1 A IMPORTANT INFORMATION GENERAL INFORMATION 72000 ...
Page 15: ...1 B 50617 IMPORTANT INFORMATION MAINTENANCE ...
Page 36: ...1 C IMPORTANT INFORMATION TROUBLESHOOTING ...
Page 74: ...2 A 50633 REMOVAL AND INSTALLATION 4 CYL ALPHA ONE DRIVE ...
Page 88: ...3 A 26790 ENGINE 181 CID 3 0L 4 CYLINDER GM ENGINE ...
Page 137: ...4 A 72079 ELECTRICAL SYSTEMS STARTING SYSTEM ...
Page 170: ...4 B 71855 ELECTRICAL SYSTEMS IGNITION SYSTEM ...
Page 197: ...ELECTRICAL SYSTEMS CHARGING SYSTEM 4 C 72078 ...
Page 237: ...4 D 72747 ELECTRICAL SYSTEMS INSTRUMENTATION ...
Page 250: ...4 E 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS ...
Page 264: ...5 A FUEL SYSTEM FUEL PUMP ...
Page 271: ...5 B 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR ...
Page 300: ...6 A 50628 COOLING SYSTEM SEAWATER COOLED MODELS ...
Page 309: ...6 B 73665 COOLING SYSTEM CLOSED COOLING MODELS ...
Page 325: ...C 6 EXHAUST SYSTEM MANIFOLD ...
Page 331: ...7 A 71317 POWER STEERING PUMP ...