Turbocharger Disassembly And Assembly - Mitsubishi 6M70 Workshop Manual

TURBOCHARGER
Mitsubishi 6M70 Turbocharger
Disassembly sequence
1 Connecting lever
2 Spacer
3 Joint
4 Air cylinder
5 Bracket
6 Clamp bolt
Assembly sequence
Follow the disassembly sequence in reverse.
Service standards (Unit: mm)
Location
2 Spacer outside diameter
3 Joint inside diameter
4 Air cylinder
7 Play between nozzle lever plate and link
Clearance between compressor cover and compressor
10, 14
wheel
Cartridge as-
14
sembly
15-38
7 Nozzle
8 Flange
9 Snap ring
10 Compressor cover
11 O-ring
12 Clamp plate
Maintenance item
Stroke
(operating air pressure:
390 to 785 kPa {4 to 8 kgf/
2
cm } when compressed air
introduced)
Airtight test (390 to 785 kPa {4 to 8
2
kgf/cm })
Play in axial direction of shaft and tur-
bine wheel
Shaft and turbine wheel-to-turbine
back plate clearance
Standard value
–
–
Port A 12
Port B 6
Port C 3
No air leakage of 25 cm
{25 mL} for 1 minute
0.05 to 0.40
0.08 to 0.28
0.075 to 0.155
0.48 to 0.92
13 Turbine housing
14 Cartridge assembly
(See later section.)
: Non-reusable parts
Limit Remedy
φ11.5 Replace
φ12.5
Replace
–
–
Replace
–
2
–
1.0 Replace
– Check parts
– Check parts
– Check parts