Removal Procedure
WARNING: This page is about a different variant/trim than selected.
NOTE:
Prevent the crankshaft from rotating clockwise or counterclockwise before using compressed air in the cylinder. Rotation of the crankshaft may cause damage to EN-50792 Flywheel Holding Tool.
- If equipped with a manual transmission, leave the transmission in first gear with the vehicle on the ground and the parking brake set.
- If equipped with an automatic transmission, remove the starter. Starter Replacement (LTG)
- Install EN-50792 Flywheel Holding Tool.
- Remove the camshaft. Camshaft Position Actuator and Intake Camshaft Replacement , Camshaft Position Actuator and Exhaust Camshaft Replacement
- Valve Rocker Arm - Remove - Valve Rocker Arm Replacement (Exhaust) , or Valve Rocker Arm Replacement (Intake)
- NOTE:
When mounting the valve spring compressor to the cylinder head, a suitable large washer should be used as indicated by the arrow.
Install the EN-50717 Valve Spring Compressor (1) to the front and rear of the cylinder head as shown.
- Install the cross bars and locks (2) of the EN-50717 Valve Spring Compressor to the valve spring compressor adaptors.
- Remove the spark plugs. Gas Engine Ignition Spark Plug Replacement
- Install EN-35667-A Leakdown Adapter into the spark plug hole.
- Attach an air hose to the EN-35667-A Leakdown Adapter and pressurize the cylinder to 690 kPa (100 psi).
- Compress the valve spring using the valve spring compressor (3).
Remove the valve spring keepers (1).
- Remove the valve spring (3) and retainer (2).
- Use the EN-37281-A Valve Guide Seal Remover to remove the valve seal.