Engine Flywheel Installation (LY7)

Special Tools

• EN 46106:  Engine Flywheel Holding Tool
• J 45059:  Angle Meter

  For equivalent regional tools, refer to Special Tools

1. Place the engine flywheel in position on the crankshaft.
2. Install 2 NEW bolts in location at the top and bottom of the engine flywheel bolt pattern allowing the engine flywheel to hang in position.
Fig 1: View Of Tool EN 46106
Courtesy of GENERAL MOTORS CORP.
3. Install the EN 46106:  tool.
Fig 2: Identifying Engine Flywheel Bolts
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fastener Caution .
4. Install the remaining NEW engine flywheel bolts.
   1. Tighten the NEW engine flywheel bolts to 30 N.m (22 lb ft) .
   2. Tighten the NEW engine flywheel bolts an additional 45 degrees using the J 45059:  meter .
Fig 3: View Of Tool EN 46106
Courtesy of GENERAL MOTORS CORP.
5. Remove the EN 46106:  tool.