Disassembly
Note. If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.
- Using the Valve Spring Compressors, remove the keys, retainer and spring.
- Remove the valve from the cylinder head.
- Remove and discard the valve stem seal.
- Repeat the above steps for each valve.
- Remove the turbocharger oil supply quick connect fitting. Inspect and if necessary, replace the quick connect fitting.
- If equipped, remove and discard the Cylinder Head Temperature (CHT) sensor.
Scheme 522
- NOTE: Lubricate the valve stem seal with clean engine oil prior to installation. Using the Valve Stem Oil Seal Installer, install a new valve stem seal.
- Install the valve.
- Using the Valve Spring Compressors, install the valve spring, retainer and key.
- Repeat the above steps for each valve.
- Install the turbocharger oil supply quick connect fitting. Tighten to 16 Nm (142 lb-in).
- If equipped, install a new CHT sensor. Tighten to 10 Nm (89 lb-in).