Sable V6-3.0L VIN U (1999)
Valve Spring: Service and Repair
Rocker Arm - RH Shown, LH Similar 9 (2 Of 2)
Removal
1. Remove upper intake manifold, valve covers and rocker arms.
2. Remove spark plug from applicable cylinder.
3. Position piston at top of stroke with both exhaust valve and intake valve closed.
4. NOTE: Failure of air pressure to hold the exhaust valve and intake valve closed while performing the following steps is an indication of valve
and/or valve seat damage and requires removal of cylinder head.
Install an air line with an adapter in the spark plug hole and turn air supply ON.
5. Compress valve spring using Valve Spring Compressor 303-163 (T81P-6513-A) following tool manufacturer's instructions.
6. CAUTION: If air pressure had forced the piston to the bottom of the cylinder, any loss of air pressure will allow the valve(s) to fall into
the cylinder. A rubber band, tape or string wrapped around the end of the valve stem will prevent this from happening and still allow
enough travel to check the valve for binds and excessive guide to valve stem clearance.
Remove valve spring retainer key, valve spring retainer and valve spring.
7. Using locking pliers remove valve stem seal.
8. Repeat Steps 2 through 7 until all necessary valve stem seals are removed.
