Crankshaft Balancer Removal (LS7)

Special Tools

• J 41816-A  Crankshaft Balancer Remover
• J 41816-2  Crankshaft End Protector
• J 42386-A  Flywheel Holding Tool

For equivalent regional tools, refer to Special Tools

Fig 1: Flywheel Holder
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

NOTE:
• Note the position of the crankshaft balancer before removal. The balancer does not use a key or keyway for positioning. Mark or scribe the end of the crankshaft and the balancer before component removal. Refer to Engine Balancing (LSA) .
• Do not use the crankshaft balancer bolt during final assembly. Install a NEW crankshaft balancer bolt during final assembly.
1. Install the J 42386-A  tool and bolts.

   Use 1 M10 - 1.5 x 120 mm and 1 M10 - 1.5 x 45 mm bolt for proper tool operation and tighten the J 42386-A  tool bolts to 50 N.m (37 lb ft).

Fig 2: View Of Crankshaft Balancer Bolt
Courtesy of GENERAL MOTORS COMPANY
2. Remove the crankshaft balancer bolt (139). Do not discard the crankshaft balancer bolt. The balancer bolt will be used during the balancer installation procedure.
Fig 3: Marking Crankshaft Balancer & End Of Crankshaft
Courtesy of GENERAL MOTORS COMPANY
3. Mark or scribe the crankshaft balancer and the end of the crankshaft.
Fig 4: Crankshaft Balancer Remover And Protector Tools
Courtesy of GENERAL MOTORS COMPANY
4. Use the J 41816-A  remover (1) and the J 41816-2  protector (2) in order to remove the crankshaft balancer.
Fig 5: View Of Crankshaft Balancer
Courtesy of GENERAL MOTORS COMPANY
5. Remove the crankshaft balancer (138).
Fig 6: Crankshaft Balancer Washer
Courtesy of GENERAL MOTORS COMPANY
6. Remove the crankshaft balancer washer (1) from the balancer.
Fig 7: View Of Balancer Weights In Crankshaft Balancer
Courtesy of GENERAL MOTORS COMPANY
7. Note the position of the crankshaft balance weights, if applicable. Refer to Engine Balancing (LSA) , and Crankshaft Balancer Cleaning and Inspection .