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1G-287 4/96
26-SI ALTERNATOR
ALTERNATOR UNIT REPAIR
CAUTION: Disconnect grounded cable at battery
before removing or attaching battery cable at
alternator output terminal. Otherwise, a tool
shorted to the battery cable at the output terminal
can quickly heat enough to cause a skin burn or
damage the tool or cable.
NOTICE: Always reinstall fasteners at original
location. If necessary to replace fasteners, use only
correct part number or equivalent.
• If correct part number is not available, use only
equal size and strength. For alternator internal
fasteners, refer to Delco Remy America Standard
Hardware Fasteners section in Service Parts
Catalog.
• Fasteners that are NOT to be reused will be noted
in procedure.
• Fasteners requiring thread locking compound will
be noted in procedure.
• Use specified torque values when shown.
CAUTION: Using or replacing fasteners in any
other manner could result in part or system
damage.
If diagnosis determines that alternator repair is
needed, remove alternator from engine according to
manufacturer’s instructions.
DISASSEMBLY AND BENCH CHECKS
TEST EQUIPMENT NEEDED:
• Multimeter
• Regulator Tester
ALTERNATOR
1. Remove rectifier end plate (20), rectifier end cover
(19), and gasket (47). (See Fig. 10)
2. Inspect electronics compartment (See Fig. 11) for
contamination, for shorted or grounded wires, and for
loose connections. If contamination is present, clean
and dry compartment before proceeding. Check gasket
for source of entry and replace as necessary.
If indicator light was not operating properly, check
internal indicator light lead assembly for correct
installation and continuity. Correct as necessary.
Figure 10. Removing End Plate and Cover
Figure 11. Electronics Compartment
8
26-5019
1. HOUSING
ASSEMBLY
19. COVER
20. PLATE
32. SCREW (3)
33. SCREW (4)
34. SCREW (4)
47. GASKET
20
33
34
32
47
1
19
26-5018