Tolerances |
| Part |
Inches |
Millimeters |
| Min. |
Max. |
Min. |
Max. |
Compressor wheel |
| Bore diameter (T18A15,31,40,73,74,76,77) |
0,3736 |
0,3739 |
9,4890 |
9,4970 |
| Bore diameter (T18A66,85,90,94,95,98) |
0,4374 |
0,4378 |
11,1100 |
11,1200 |
Back plate |
| Piston ring bore diameter |
0,6875 |
0,9885 |
17,4630 |
17,4880 |
Bearing housing |
| Piston ring bore diameter (all others) |
1,0290 |
1,0310 |
26,1400 |
26,1900 |
| Piston ring bore diameter (T18A44,51,70,72,73,75) |
1,0190 |
1,0210 |
25,8800 |
25,9300 |
| Piston ring bore diameter (labyrinth type)) |
1,0100 |
1,0120 |
25,6500 |
25,7000 |
| Bearing bore diameter |
0,9830 |
0,9835 |
24,9680 |
24,9810 |
| Oil seal ring gap |
0,0080 |
0,0150 |
0,2000 |
0,3800 |
Shaft and wheel |
| Piston ring groove width |
0,0645 |
0,0665 |
1,6380 |
1,6890 |
| Journal diameter (all others) |
0,6247 |
0,6250 |
15,8670 |
15,8750 |
| Journal diameter (T18A15,73,74,77) |
0,6250 |
0,6254 |
15,8750 |
15,8850 |
| Seal hud diameter |
0,9950 |
0,9970 |
25,2700 |
25,3200 |
| 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.) - (all others) |
0,3755 |
0,3758 |
9,5380 |
9,5450 |
| Diameter (I.D.) - (T18A85,90,94,95,98) |
0,4392 |
0,4396 |
11,1560 |
11,1660 |
| Piston ring bore diameter |
0,6040 |
0,6080 |
15,3400 |
15,4400 |
| Diameter (O.D.) (all others) |
0,6715 |
0,6725 |
17,2470 |
17,2590 |
| Diameter (O.D.) (T18A97) |
0,6770 |
0,6780 |
17,2000 |
17,2200 |
| Thickness (all others) |
0,5160 |
0,5170 |
13,1100 |
13,1300 |
| Thickness (T18A85,90,94,95,98) |
0,6510 |
0,6520 |
16,5400 |
16,5600 |
| Parallelism between faces |
|
0,0001 |
|
0,0030 |
Thrusth collar |
| Diameter (I.D.) - (all others) |
0,4392 |
0,4396 |
11,1560 |
11,1660 |
| Diameter (I.D.) - (T18A15,31,40,55,73,74,76,77) |
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 |
0,0040 |
0,0090 |
0,1000 |
0,2300 |
| Radial bearing clearance |
0,0030 |
0,0060 |
0,0800 |
0,1500 |
Torques |
| Part |
Pounds per Inch |
Newtons per meter |
| Min. |
Max. |
Min. |
Max. |
Bolts |
| turbine housing |
100,0 |
110,0 |
11,3 |
12,4 |
| backplate (cast iron) |
160,0 |
180,0 |
18,1 |
20,3 |
| backplate (aluminum) |
90,0 |
110,0 |
10,2 |
12,4 |
Shaft nut |
| Para eje 3/8 > 1st - Tighten to |
125,0 |
150,0 |
14,1 |
17,0 |
| Para eje 3/8 > 2nd - Loosen the nut |
|
|
|
|
| Para eje 3/8 > 3rd - Retorque to |
15,0 |
25,0 |
1,7 |
2,8 |
| Para eje 3/8 > 4th - Plus additional turn of 140º |
|
|
|
|
| Para eje 7/16 > 1st - Tighten to |
125,0 |
150,0 |
14,1 |
17,0 |
| Para eje 7/16 > 2nd - Loosen the nut |
|
|
|
|
| Para eje 7/16 > 3rd - Retorque to |
15,0 |
25,0 |
1,7 |
2,8 |
| Para eje 7/16 > 4th - Plus additional turn 120º |
|
|
|
|
V clamp |
| compressor housing |
40,0 |
60,0 |
4,5 |
6,8 |
