|
|
The intake and exhaust rocker arms are different. They should be identified before disassembling the Check rocker arms for wear or damage (Fig. 59): • Shaft bore scuffing or wear • Swivel pad on lash adjuster missing or broken • Rocker arm showing signs of fatigue or cracking • Roller axle protruding from arm shows signs of wear. CAUTION: Do Not remove lash adjuster from rocker ASSEMBLY CAUTION: New dowel pins must be installed when (1) Install the rocker arms, and pedestals onto the shaft. (2) Install dowel pins (Fig. 60). Dowel pins pass through the pedestal into the exhaust rocker shafts. (3) Install rocker arm and shafts. (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARM / ADJUSTER ASSY - INSTALLATION) INSTALLATION NOTE: Rocker arm and shaft assembly can be (1) Rotate camshafts to the position shown in (Fig. 61). With the camshafts in these positions the lobes (2) Install the rocker arm and shaft assembly making sure that the identification marks face Fig. 61 CAMSHAFT GEAR TIMING MARKS Fig. 59 Rocker Arm Assembly 1 - RETAINER Fig. 60 Assemble Rocker Arms and Shaft 1 - HYDRAULIC LASH ADJUSTERS CS ENGINE 3.5L 9 - 51 ROCKER ARM SHAFT/ ROCKER ARM / LASH ADJUSTER (Continued) |