Important: Before installing the crankshaft balancer, check the oil seal contact area for grooving and roughness. Replace the crankshaft balancer if necessary. 1. Tap the…

Tools Required J 22102 Seal Installer Important: Replacing either of the following will affect timing: • The timing chain • The timing gears • The…

1. Install the keyway in the crankshaft. Important: • Do not damage the reluctor wheel square bosses. • Align the timing marks. Install the crankshaft…

1. Clean the sealing surfaces on the cylinder head and the valve rocker arm cover, so that the surfaces are free from oil and foreign…

Important: Ensure that the ball ends of the valve pushrods seat in the valve rocker arms. Notice : Install the valve pushrods with the copper-colored,…

Tools Required J 39664 Manifold Cover Set Important: • Make sure that the block gasket surfaces are clean. • The head gasket material is soft.…

Notice : Prime the new valve lifters before installation. The valve lifters may be damaged if the valve lifters are dry when the engine is…

Important: Replace the valve lifters when a new camshaft is installed. 1. Install the camshaft sprocket key. 2. Install the camshaft sprocket spacer, with the…

1. Apply a 2 mm (1/16 in) bead of RTV sealant GM P/N 12345739 to the oil pan rear seal at the inside corners where…

1. Install the oil pump with the driveshaft. Notice : Refer to Fastener Notice in Cautions And Notices. 2. Install the oil pump bolts. Tighten…