TM 5-3805-281-24-2
Air Intake and Exhaust System
2. Excessive "blueing" or "coking" of oil along the
complete length of the shaft (A) indicates a possible
lack of lubrication caused by an engine failure, or
improper operation, such as hot shutdowns.
Checking for Oil "Coking" on Shaft
RG,RG34710,1259 1923OCT9710/13
TURBOCHARGER BENCH TEST
1. Mount the turbocharger in a vise.
2. Rotate the shaft, using both hands, to check rotation
and clearance. The shaft should turn freely, however,
there may be a slight amount of drag.
Checking Shaft Rotation and Clearance
Continued on next page
RG,RG34710,1259 1923OCT9711/13
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