Exhaust Camshaft Installation
Install the camshaft bearing lower front cap (1).
- NOTE:
Pre-fill the low pressure chamber with engine oil. Maintain a vertical orientation of the assembly to retain the oil in the reservoir and high pressure chamber. Do not install the lash adjusters without pre-filling the low pressure chamber. Apply engine oil to the outer diameter surface of all adjusters.
Lubricate and install the hydraulic valve lash adjusters (1) into their bores in the cylinder head. Refer to Adhesives, Fluids, Lubricants, and Sealers .
Lubricate the valve tips. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- NOTE:
Used rocker arms must be returned to the original position on the camshaft. If the camshaft is being replaced, the rocker arms actuated by the camshaft must also be replaced.
NOTE:Pre-oil roller bearings before installation.
Lubricate the roller bearings with valve rocker arm lubricant. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- Position the valve rocker arm (1) on the tip of the valve stem and on the lash adjuster and lubricate. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- NOTE:
Apply lubricant to all lobes and journals prior to installing the camshafts.
Lubricate the exhaust camshaft lobes and journals with camshaft lubricant. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- Set the exhaust camshaft (1) on top of the rocker arms in the camshaft bearing journals with the actuator timing mark at approximately the 1 O'clock position.
- Do not apply final torque at this time. Camshaft cap final torque is applied in sequence when all caps are installed on both intake and exhaust camshafts.
- To properly position the camshaft caps, install the camshaft cap bolts into the camshaft caps prior to installing the camshaft caps on the camshafts.
- Install the camshaft cap bolts (3) into the camshaft caps (2).
- Install the camshaft caps (2) and hand start the camshaft cap bolts (3).