In-vehicle Repair Special Tool(s) | Installer, Intake Valve Stem Oil Seal 303-247 (21-130A) | | Compressor, Valve Spring 303-361 (21-155) | | Adapter for 303-361 (21-155) 303-361-02 | | Installer, Valve Stem Collets 303-362 (21-156) | | Pliers, Valve Stem Oil Seal 303-508 (21-211) | General Equipment Brass drift Valve stem mounting sleeve Materials Name Specification Hypoid oil SQM-2C9002-AA Engine oil WSS-M2C913-A or WSS-M2C912-A1 Removal | -
Remove the cylinder head. For additional information, refer to Cylinder Head in this section. | | -
Remove the exhaust camshaft. | | -
CAUTION:The valve tappets must be installed in their original locations. Remove the valve tappets. | | -
Loosen the valve collets. - Position a brass drift on the valve spring seat and gently strike it with a hammer.
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Using the special tools, remove the valve collets. | | -
Remove the valve springs. | | -
Using the special tool, remove the valve seals. | Installation | -
Install a valve stem mounting sleeve over the valve collet groove (valve shown removed for clarity). | | -
NOTE:Install new valve seals. Using the special tool, install the valve seals. | | -
Remove the valve stem mounting sleeve. | | -
Install the valve springs. | | -
Using the special tools, install the valve collets. - Position a brass drift on the valve spring seat and gently strike it with a hammer.
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Remove the special tools. | | -
CAUTION:The valve tappets must be installed in their original locations. Install the valve tappets. | | -
CAUTION:Make sure that the exhaust camshaft is positioned so that no exhaust valves are fully open. NOTE:The inlet and exhaust camshafts are marked with two identification rings between the fourth and fifth cams. The exhaust camshaft has a larger space between the identifcation rings. Install the exhaust camshaft. | | -
CAUTION:The camshaft must not be turned for at least 15 minutes after tightening the camshaft bearing cap retaining bolts. NOTE:The installation locations of the camshaft bearing caps are marked on the rear face of the cap. Install the exhaust camshaft bearing caps. | | -
Install the cylinder head. For additional information, refer to Cylinder Head in this section. | | |