09:17:05 - Sat, Apr 20, 2024 -
10°C
10°CT12 Turbocharger's Technical Data
Technical data for Model T12 by Garrett | ||||
|---|---|---|---|---|
| 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 | 0,6870 | 0,6880 | 17,4490 | 17,4750 |
| Oil seal ring gap | 0,0030 | 0,0080 | 0,0700 | 0,2000 |
| Bearing housing | ||||
| Piston ring bore diameter | 0,8210 | 0,8230 | 20,8500 | 20,9000 |
| 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 | 0,0650 | 0,0720 | 1,6500 | 1,8200 |
| Journal diameter | 0,6250 | 0,6254 | 15,8750 | 15,8850 |
| Seal hub diameter | 0,7955 | 0,7965 | 20,2050 | 20,2310 |
| Eccentricity of small diameter | 0,0000 | 0,0005 | 0,0000 | 0,0130 |
| Thrusth spacer | ||||
| Piston ring groove width | 0,6850 | 0,6950 | 1,7400 | 1,7650 |
| Diameter (I.D.) | 0,3138 | 0,3141 | 7,9710 | 7,9780 |
| Piston ring groove diameter | 0,6040 | 0,6080 | 15,3400 | 15,4400 |
| Diameter (O.D.) | 0,6770 | 0,6780 | 17,2000 | 17,2200 |
| Thickness | 0,5160 | 0,5170 | 13,1100 | 13,1300 |
| Parallelism between faces | 0,0001 | 0,0030 | ||
| Thrusth collar | ||||
| Diameter (I.D.) | 0,3138 | 0,3141 | 7,9710 | 7.978,0000 |
| 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 | 0,0060 | 0,0130 | 0,1500 | 0,3300 |
| Radial bearing clearance | 0,0030 | 0,0070 | 0,0800 | 0,1800 |
| Torques | ||||
| Part | Pounds per Inch | Newtons per meter | ||
| Min. | Max. | Min. | Max. | |
| Bolts | ||||
| turbine housing | 160,0 | 190,0 | 18,1 | 21,5 |
| backplate | 30,0 | 40,0 | 3,4 | 4,5 |
| 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 130º | ||||
| V clamp | ||||
| compressor housing | 110,0 | 130,0 | 12,4 | 14,7 |