Timing Chain and Sprocket Installation

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Crankshaft Sprocket

Courtesy of GENERAL MOTORS CORP.

Install the crankshaft sprocket.
Apply prelube GM P/N 12345501, (Canadian P/N 992704) or the equivalent to the crankshaft sprocket thrust surface.

Fig 2: View Of Timing Chain Dampener & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the timing chain dampener.

CAUTION: Refer to Fastener Caution .

Install the timing chain dampener bolts and tighten to 21 N.m (15 lb ft).

Fig 3: Locating Timing Marks

Courtesy of GENERAL MOTORS CORP.

Align the crankshaft timing mark (2) to the timing mark on the bottom of the timing chain dampener (1).
Hold the camshaft sprocket with the timing chain hanging down and install the timing chain to the crankshaft gear.
Align the timing mark on the camshaft gear (4) with the timing mark on top of the timing chain dampener (3).

Fig 4: Identifying Camshaft Sprocket And Timing Chain

Courtesy of GENERAL MOTORS CORP.

Align the dowel in the camshaft with the dowel hole in the camshaft sprocket.
Draw the camshaft sprocket onto the camshaft using the mounting bolts.
Coat the crankshaft and camshaft sprocket with engine oil. Tighten the bolts to 16 N.m (12 lb ft).