C 2500 Suburban 2WD V8-350 5.7L VIN K TBI (1995)
Starter Motor: Testing and Inspection
Free Speed Inspection
Fig. 12 Motor Free Speed Inspection.
This test is performed during bench testing. With the circuit connected, use a tachometer to measure armature revolutions per minute. Failure of the
motor to perform to specifications may be due to light or dry bearings, or high resistance connections. Starter motors do not require lubrication except
during overhaul. At this time a couple drops of light oil may be applied to bearings.