Crankshaft Balancer Installation

Special Tools

• EN-46106:  Engine Flywheel Holding Tool
• J-41998-B:  Crankshaft Balancer Installer
• J-45059:  Angle Meter

  For equivalent regional tools, refer to Special Tools .

Fig 1: View Of Tool EN 46106
Courtesy of GENERAL MOTORS CORP.
1. The EN-46106:  tool must be installed onto the flywheel.
2. Use the J-41998-B:  installer, nut, bearing and washer to install the crankshaft balancer.
Fig 2: Lubricating Inside Of Crankshaft Balancer Hub Bore
Courtesy of GENERAL MOTORS CORP.
NOTE: Do not lubricate the crankshaft front oil seal or crankshaft balancer sealing surfaces. The crankshaft balancer is installed into a dry seal.
3. Apply lubricant to the inside of the crankshaft balancer hub bore.
Fig 3: View Of Crankshaft Balancer & Bolt
Courtesy of GENERAL MOTORS CORP.
4. Place the crankshaft balancer in position on the crankshaft.
5. Thread the J-41998-B:  installer in the crankshaft. Ensure you engage at least 10 threads of the J-41998-B:  installer before pressing the crankshaft balancer in place.
6. Push the crankshaft balancer into position by tightening the nut on the J-41998-B:  installer until the large washer bottoms out on the crankshaft end.
7. Remove the J-41998-B:  installer.
Fig 4: View Of Crankshaft Balancer Bolt
Courtesy of GENERAL MOTORS CORP.
8. Install the crankshaft balancer bolt.
CAUTION: Refer to Fastener Caution .
9. Tighten the crankshaft balancer bolt to 100 N.m (74 lb ft) and an additional 150 degrees using the J-45059:  meter.
Fig 5: View Of Tool EN 46106
Courtesy of GENERAL MOTORS CORP.
10. Remove the EN-46106:  tool.