Alero L4-144 2.4L DOHC VIN T SFI (2000)
Valve Guide Seal: Service and Repair
Valve Stem Oil Seal and Valve Spring Replacement (Exhaust)
Removal Procedure
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Tools Required
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J 36588 Valve Spring Compressor T-Bolt
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J 5892-D Valve Spring Depressor
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J 36011 Spark Plug Connector Assembly Remover
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J 36017 Valve Guide Seal Remover
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J 36660-A Torque Angle Meter
Important: Any time the camshaft housing to the cylinder head bolts are loosened or removed, the camshaft housing to the cylinder head gasket must
be replaced.
Caution: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Disconnect the ignition coil and module assembly electrical connections.
3. Remove the ignition coil and module assembly to the camshaft housing bolts.
4. Remove the assembly by pulling straight up.
5. Use the J 36011 in order to remove the connector assembly if the connector assembly is stuck to the spark plugs.
6. Use the tool by first twisting then pulling up on the connector assembly.
7. Disconnect the electrical connection from the oil pressure switch.
8. Disconnect the timing chain housing at the exhaust camshaft housing, but do not remove it from the vehicle. Refer to Timing Chain Housing
Replacement.
Notice: Turn the camshaft housing upside down as soon as it is removed from the cylinder head. The lifters will fall out of the camshaft housing if
it is not turned upside down the lifters can be damaged if they fall out and hit a hard surface.
Important: Use the reverse of the tightening procedure when loosening the camshaft housing to the cylinder head retaining bolts.