Exhaust Camshaft and Valve Lifter Replacement - LE5 or LE9
Removal Procedure
- Remove the exhaust camshaft position actuator. Refer to
Camshaft Position Exhaust Actuator Replacement : LE5 or LE9 .
Note: Remove each bolt on each cap one turn at a time until there is no spring tension pushing on the camshaft.
- Mark the bearing caps to ensure they are installed in the original position.
- Remove the bearing cap bolts.
- Remove the bearing caps.
- Remove the exhaust camshaft (3).
Note: Keep all of the roller followers and hydraulic adjusters in order so that they can be reinstalled in their respective locations.
- Remove the camshaft roller followers.
- Remove the hydraulic element clearance adjusters.
Installation Procedure
- Install the hydraulic element clearance adjusters into their bores in the cylinder head.
- Lubricate the hydraulic clearance adjusters Refer to Adhesives, Fluids, Lubricants, and Sealers .
- Lubricate the valve tips with Adhesives, Fluids, Lubricants, and Sealers .
Note: Used roller followers MUST be returned to the original position on the camshaft. If the camshaft is being replaced, the roller followers actuated by the camshaft must also be replaced.
- Position the roller followers on the tip of the valve stem and on the clearance adjuster. Refer to Adhesives, Fluids, Lubricants, and Sealers .
- Install the exhaust camshaft (3). Lubricate with Adhesives, Fluids, Lubricants, and Sealers .
- Install the camshaft bearing caps. Hand-tighten the cap bolts.
Caution: Refer to Fastener Caution in the Preface section.
- Tighten the bearing cap bolts in increments of 3 turns until they are seated. Tighten the bolts to 10 N·m (89 lb in).
- Install the exhaust camshaft position actuator. Refer to
Camshaft Position Exhaust Actuator Replacement : LE5 or LE9 .
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