Mitsubishi 6M70 Workshop Manual page 315

TURBOCHARGER
Installation procedure
15-42
• Measure the inside diameter C of the compressor cover.
• Calculate the clearance between compressor wheel and com-
pressor cover as follows.
C-B-A
Clearance=
2
• If the clearance deviates from the specified standard value
range, disassemble and correct.
Inspection: Cartridge assembly
(1) Play in axial direction of shaft and turbine wheel
• If the measurement exceeds the specified limit, disassemble
and check the parts.
(2) Shaft and turbine wheel-to-turbine back plate clearance
• Measure the clearance between the turbine back plate and shaft
and turbine wheel unit.
• Be sure to measure the clearance at the periphery of the blades
using two feeler gauges.
• If the measurement deviates from the standard value, disassem-
ble the cartridge assembly, inspect and check the parts.
Installation: Turbine housing
• Install the cartridge assembly into the turbine, then perform the
following test.
(1) Rotating condition of cartridge assembly
• Turn the wheels of the cartridge assembly. They should turn
smoothly.
• If not, disassemble the cartridge assembly, inspect and check
the parts.
Installation: Nozzle
• Fit the nozzle in the flange.
• In fitting, turn the nozzle and flange so that the control crank and
ring properly engage each other