Special Tools

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

EN-43650: Balance Shaft Bushing Remover/Installer

For equivalent regional tools, refer to Special Tools .

Fig 1: View of Balance Shaft Bushing and EN-43650 Installer

Courtesy of GENERAL MOTORS CORP.

Install the balance shaft bushing using the EN-43650: installer (1).

Fig 2: Seat Balance Shaft Bushing Into Bore Using EN-43650

Courtesy of GENERAL MOTORS CORP.

Seat the balance shaft bushing into the bore using the EN-43650: installer (1) and a wrench.
When the EN-43650: installer is fully seated in the engine block, remove it with a wrench.

Fig 3: View of Balance Shaft Bolts

Courtesy of GENERAL MOTORS CORP.

NOTE: If the balance shafts are not properly timed to the engine, the engine may vibrate or make noise.

Place the number one piston at top dead center (TDC).
Lubricate the balance shaft lobes with engine oil.
Install the balance shafts (1) into their bores.

CAUTION: Refer to Fastener Caution .

Install the balance shaft retaining bolts and tighten to 10 N.m (89 lb in).