Tolerances |
| Part |
Inches |
Millimeters |
| Min. |
Max. |
Min. |
Max. |
Compressor wheel |
| Bore diameter |
0,3121 |
0,3124 |
7,9270 |
7,9350 |
Back plate |
| Piston ring bore diameter |
0,6875 |
0,6885 |
17,4630 |
17,4880 |
| Oil seal ring gap |
0,0030 |
0,0080 |
0,0700 |
0,2000 |
Bearing housing |
| Piston ring bore diameter |
0,8220 |
0,8240 |
20,8800 |
20,9300 |
| Bearing bore diameter |
0,9827 |
0,9832 |
24,9610 |
24,9730 |
| Oil seal ring gap |
0,0080 |
0,0150 |
0,2000 |
0,3800 |
Shaft and wheel |
| Piston ring groove width |
0,0645 |
0,0685 |
1,6380 |
1,7400 |
| Journal diameter |
0,6250 |
0,6254 |
15,8750 |
15,8850 |
| Piston ring groove diameter |
0,6880 |
0,6920 |
17,4800 |
17,5800 |
| Seal hub diameter |
0,7950 |
0,7970 |
20,1900 |
20,2400 |
| Eccentricity of small diameter |
0,0000 |
0,0005 |
0,0000 |
0,0130 |
Thrusth spacer |
| Piston ring groove width |
0,0685 |
0,0695 |
1,7400 |
1,7650 |
| Diameter (I.D.) |
0,3755 |
0,3758 |
9,5380 |
9,5450 |
| Piston ring groove diameter |
0,6040 |
0,6080 |
15,3400 |
15,4400 |
| Diameter (O.D.) |
0,6715 |
0,6725 |
17,0560 |
17,0820 |
| Thickness |
0,5160 |
0,5170 |
13,1100 |
13,1300 |
| Parallelism between faces |
|
0,0001 |
|
0,0030 |
Thrusth collar |
| Diameter (I.D.) |
0,3755 |
0,3759 |
9,5350 |
9,5450 |
| Thickness |
0,2990 |
0,3000 |
7,5900 |
7,6200 |
| Parallelism between faces |
|
0,0003 |
|
0,0080 |
Clearances |
| Part |
Inches |
Millimeters |
| Min. |
Max. |
Min. |
Max. |
Rotor |
| Axial end play |
0,0030 |
0,0100 |
0,0800 |
0,2500 |
| Radial bearing clearance |
0,0030 |
0,0070 |
0,0800 |
0,1800 |
Torques |
| Part |
Pounds per Inch |
Newtons per meter |
| Min. |
Max. |
Min. |
Max. |
Bolts |
| backplate |
80,0 |
100,0 |
9,0 |
11,3 |
Shaft nut |
| 1st - Tighten to |
125,0 |
150,0 |
14,1 |
17,0 |
| 2nd - Loosen the nut |
|
|
|
|
| 3rd - Retorque to |
35,0 |
55,0 |
4,0 |
6,2 |
| 4th - Plus additional turn of 135-145º |
|
|
|
|
V clamp |
| compressor housing |
110,0 |
130,0 |
12,4 |
14,7 |
| turbine housing |
110,0 |
130,0 |
12,4 |
14,7 |
