Tightening Torque - Yanmar 3TNV Series Service Manual

8. Turbochager
(2) RHB31/RHB51 type
Turbine shaft journal outside diameter (A)
Turbine shaft seal ring groove width (E)
Turbine
Compressor side seal ring groove width (G1)
shaft
Compressor side seal ring groove width (G2)
Turbine shaft run-out
Journal bearing inside diameter (C)
Bearing Journal bearing outside diameter (D)
Bearing housing inside diameter (B)
Thrust bearing width (J)
Thrust
bearing
Thrust bushing groove dimension (K)
Turbine side (bearing housing)(F)
Seal ring
fixing Compressor side (seal ring)(H1)
area
Compressor side (seal ring)(H2)
Rotor play in axial direction
Rotor play in radial direction

8.2.2 Tightening torque

(1) RHF5 type
Part
Turbine housing set bolt
Compressor housing set bolt
Thrust bearing set screw
Seal plate set screw
Blower impeller set nut
(left-handed screw)
(2) RHB31/ RHB51 type
Part
Waste gate actuator set bolt
Lock plate set bolt
Thrust bearing set screw
Seal plate set screw
Blower impeller set nut
(left-handed screw)
Standard dimension
RHB31
6.257 6.263
1.038 1.062
1.02 1.03
0.82 0.83
0.002
6.275 6.285
9.940 9.946
9.995 10.005
3.59 3.61
3.632 3.642
11.00 11.018
9.987 10.025
7.968 8.00
0.022 0.053
0.061 0.093
Thread diameter
M8
M5
M3
M3
M5
Thread diameter
M5 3.9 4.9 (40 50)
M6 11.8 12.8 (120 130) 11.8 12.8 (120 130)
M8 11.8 12.8 (120 130) 27.0 28.9 (275 295)
M3 1.2 1.4 (12 14)
M3 1.2 1.4 (12 14)
M5
0.9 1.1（9 11）
122
RHB51
7.99 8.00
1.25 1.28
1.22 1.23
1.02 1.03
0.002
8.01 8.03
12.32 12.33
12.40 12.41
3.99 4.01
4.04 4.05
15.00 15.02
12.40 12.42
10.00 10.02
0.03 0.06
0.08 0.13
N m(kgf cm)
Tightening torque
27 29 (275 295)
4.2 5.2 (43 53)
1.2 1.4 (12 14)
1.2 1.4 (12 14)
1.8 2.2 (18 22)
Tightening torque
RHB31
3.9 4.9 (40 50)
1.2 1.4 (12 14)
1.2 1.4 (12 14)
1.8 2.2（18 22）
Unit: mm
Wear limit
RHB31 RHB51
6.25 7.98
1.07 1.29
1.04 1.31
0.84 1.11
0.005 0.011
6.29 8.04
9.93 12.31
10.01 12.42
3.58 3.98
3.65 4.07
11.03 15.05
10.04 12.45
8.01 10.05
0.07 0.09
0.12 0.17
N m(kgf cm)
RHB51