Valve Stem Oil Seal and Valve Spring Replacement - LE5 or LE9
Special Tools
• | EN-36017 Valve Guide Seal Remover |
• | EN-43649 Valve Spring Compressor |
• | EN-43649-10 Valve Spring Compressor Adapter Set |
• | EN-43653 Flywheel Holding Tool |
For equivalent regional tools refer to
Special Tools : LE5 or LE9 .
Removal Procedure
Note: Prevent the crankshaft from rotating clockwise or anticlockwise before using compressed air in the cylinder. Rotation of the crankshaft may cause damage to EN-43653 holding tool .
- If equipped, with manual gearbox leave the transmission in first gear with the vehicle on the earth and the parking brake set.
- If equipped, with automatic transmission, remove the starter. Refer to
Starter Replacement : LNQ → LF1 → LE5 .
- Install EN-43653 holding tool .
- Remove the camshaft. Refer to
Intake Camshaft and Valve Lifter Replacement : LE5 or LE9 or Exhaust Camshaft and Valve Lifter Replacement : LE5 or LE9 .
- Remove the camshaft roller followers (1).
- Install the EN-43649-10 adapter set (1) to the front and rear of the cylinder head.
- Install the cross bars and locks (2) of the EN-43649 compressor to the valve spring compressor adapters.
- Remove the spark plugs. Refer to Spark Plug Replacement .
- Install an air hose adapter into the spark plug hole.
- Attach an air hose to the 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-36017 seal remover (1) to remove the valve seal.
Installation Procedure
- Using the EN-36017 seal remover (1) install the NEW valve seal. Fully seat the seal onto the valve guide.
- Install the valve spring (3) and retainer (2).
- Compress the valve spring using the valve spring compressor.
- Install the valve spring keepers (1).
- Disconnect the air hose and air hose adapter.
- Remove the EN-43649 compressor and EN-43649-10 adapter set from the cylinder head.
- Install the spark plugs. Refer to Spark Plug Replacement .
- Install the camshaft roller followers.
- Install the camshaft. Refer to
Intake Camshaft and Valve Lifter Replacement : LE5 or LE9 or Exhaust Camshaft and Valve Lifter Replacement : LE5 or LE9 .
- If used, remove the EN-43653 holding tool .
- If removed, install the starter. Refer to
Starter Replacement : LNQ → LF1 → LE5 .
© Copyright Chevrolet. All rights reserved |