Special Tools

EN 48898:  Supercharger Lift Fixture

For equivalent regional tools, refer to Special Tools .

NOTE:
• The supercharger, throttle body, fuel injection rail and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the supercharger as an assembly.
• Cover the inlet area of the supercharger to prevent dirt or debris contamination onto the rotors.
Fig 1: Identifying Supercharger
Courtesy of GENERAL MOTORS CORP.
1. Cover the inlet area of the supercharger (1) to prevent dirt or debris contamination onto the rotors.
Fig 2: Lifting Device
Courtesy of GENERAL MOTORS CORP.
2. Install the EN 48898:  fixture to the supercharger.
3. Tighten the EN 48898:  fixture bolts and nuts until snug.
4. Using the lifting device, install the supercharger onto the engine. Align the dowel pin at the right front of the supercharger to the cylinder head.
Fig 3: Identifying Supercharger & Bolts
Courtesy of GENERAL MOTORS CORP.
5. Apply a 5 mm (0.2 in) band of threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the bolts.
6. Install the supercharger bolts (1).
Fig 4: Identifying Supercharger Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
7. Tighten the bolts.
   1. Tighten the bolts a first pass in sequence to 5 N.m (44 lb in)..
   2. Tighten the bolts a final pass in sequence to 10 N.m (89 lb in)..
Fig 5: View Of Insulator Seals
Courtesy of GENERAL MOTORS CORP.
8. Install NEW insulator seals (1).
Fig 6: Identifying Supercharger, Cover & Cover Seal
Courtesy of GENERAL MOTORS CORP.
NOTE: The fuel rail with injectors must be installed prior to intercooler/cover installation.
9. Install the fuel rail with injectors as required. Refer to Fuel Rail and Injectors Installation (6.2L LS3)  or Fuel Rail and Injectors Installation (6.2L LS9)  or Fuel Rail and Injectors Installation (7.0L) .
10. Install a NEW supercharger cover seal (3).
11. Install the supercharger cover bolts (1) and the supercharger cover (2).
Fig 7: Identifying Supercharger Cover Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
12. Tighten the bolts.
    1. Tighten the bolts a first pass in sequence to 5 N.m(44 lb in).
    2. Tighten the bolts a final pass in sequence to 10 N.m(89 lb in).
Fig 8: Identifying Positive Crankcase Ventilation (PCV) Dirty Air Hose
Courtesy of GENERAL MOTORS CORP.
13. Install the positive crankcase ventilation (PCV) - dirty air hose (1) to the valley cover and supercharger.