TURBOCHARGER
10-14
TNV DI Service Manual
Periodic Inspection
Checking Rotor Play
Note: If rotor play measurements are not within specification, replace the turbocharger assembly or have it
repaired by a qualified facility.
To Check Rotor End Play:
1. Set up a dial indicator as shown (Figure 10-4).
2. Manually move the rotor end-to-end while
observing indicated readings. Replace the
turbocharger if end play measurements are
outside specified limits. See table above.
Figure 10-4
To Check Rotor Run-out:
1. Set up a dial indicator as shown (Figure 10-5).
2. Manually rotate the rotor while observing
indicated limits. Replace the turbocharger if
run-out measurements are outside specified
limits. See table above.
Figure 10-5
Waste Gate Valve Test
Before reinstalling the turbocharger, verify the
operation of the waste gate valve. Poor waste gate
operation will adversely affect the engine
performance.
Rotor Play
Standard Dimension
Wear Limit
RHF5
RHB31
RHB51
RHF5
RHB31
RHB51
End Play
0.0011 - 0.0024 in.
(0.03 - 0.06 mm)
0.0009 - 0.0021 in.
(0.022 - 0.053 mm)
0.0012 - 0.0024 in.
(0.03 - 0.06 mm)
0.0044 in.
(0.09 mm)
0.0028 in.
(0.07 mm)
0.0035 in.
(0.09 mm)
Run-out
0.0031 - 0.0051 in.
(0.08 - 0.13 mm)
0.0024 - 0.0037 in.
(0.061 - 0.093 mm)
0.0031 - 0.0051 in.
(0.08 - 0.13 mm)
0.007 in.
(0.17 mm)
0.0047 in.
(0.12 mm)
0.0067 in.
(0.17 mm)
0000080A
(1)
(3)
(2)
CAUTION
If the waste valve does not meet
specifications, replace the turbocharger
or have it repaired by a qualified repair
facility.
0000078en
(2)
(1)
(3)
(4)
0000081A
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