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Group 25 Inlet and Exhaust System
Turbine wheel and backplate clearance
Remove the bearing housing from the turbine housing
and install it in the compressor cover. Measure the
clearance between the turbine backplate and the
back side of the turbine wheel using feeler gauges.
NOTE! Use two feeler gauges, and measure at vane
tips.
If the clearance deviates from the assembly standard,
disassemble and locate the cause of the problem.
Turbine wheel and backplate clearance, mm [in.]
Standard Clearance .. 0.55–1.15 [0.02165–0.04528]
Install the compressor cover
1. Apply grease to the o-ring and install it.
2. Mount the compressor cover on the bearing
housing and be sure to follow the alignment
marks made during disassembly.
Install the lock plates
Install the lock plates to the compressor cover
Install the turbine housing
Mount the turbine housing on the bearing housing
and be sure to follow the alignment marks made dur-
ing disassembly.
Installing the V-clamp
Install the V-clamp to the compressor cover and tap
around it with a soft-faced hammer for more than 3
times and tighten to the specified torque.
187
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