Air Intake and Exhaust System
02
080
11
DPSG,OUO1004,945 –19–28JUL99–11/13
RG8498A –UN–10DEC97
Checking Shaft Rotation and Clearance
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.
DPSG,OUO1004,945 –19–28JUL99–12/13
RG8498B –UN–10DEC97
Checking for Contact of Compressor and Turbine Wheels
IMPORTANT: Use only moderate hand force (3—
4 pounds) on each end of shaft.
3. Next, pull up on the compressor end of the shaft and
press down on the turbine end while rotating shaft.
Neither the compressor wheel nor the turbine wheel
should contact the housing at any point.
NOTE: There will be some “play” because the bearings
inside the center housing are free floating.
Continued on next page
CTM100 (06APR04)
02-080-11
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=311
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