Milled Pinion Symptoms - Borg Warner Delco Remy 28MT Diagnostic Procedures Manual

Starters and alternators
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2-3. MILLED PINION SYMPTOMS

• Starter spins / no-crank
• Click / no-crank (may be intermittent)
MORE THAN 6.0 V
REMOVE STARTER –
VISUALLY CHECK PINION
VISUALLY CHECK
RING GEAR
CHECK STARTER PER
APPROPRIATE
SERVICE BULLETIN
REINSTALL STARTER AND
PERFORM CIRCUIT CHECKS
(SEE PAGE 3-4)
PRELIMINARY DIAGNOSIS FLOW CHART
VERIFY COMPLAINT
CONNECT VOLTMETER
FROM SOLENOID "S"
TERMINAL TO GROUND –
ENGAGE START SWITCH
SYMPTOMS CONTINUE
MILLED PINION
OK
REPAIR OR REPLACE
(DO NOT INSTALL)
MILLED TEETH
OK
REPLACE RING GEAR
AND CHECK FLANGE
TO FLYWHEEL DIM
DEFECTIVE
OK
REPLACE STARTER
AND VERIFY REPAIR
NO VOLTS
STARTER
CHECK AND REPAIR
SOLENOID CIRCUIT
OK
REPAIR VERIFIED
Page 10

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