Assembly Procedure
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- Lubricate the valve stem with clean engine oil.
- Install the valves.
- Lightly tap the new or reconditioned valves into the valve seat.
- Install the valve stem oil seals.
- Install the valve springs.
- Install the valve spring caps.
- Compress the valve springs using the J 38606 . See Special Tools .
- Install the valve spring cap keys. Hold the valves in place with grease, if necessary.
- Release the valve springs.
- Ensure that the valve locks are seated.
- Measure valve spring installed height.
- If the valve spring installed height is not within specifications install 0.25 mm (0.010 in) rocker arm shims P/N 88894006 as needed. If more than 2 shims are needed replace the cylinder head or valve.
- Apply sealer GM P/N 12346004 (Canadian P/N 10953480) to the coolant temperature sensor.
- Install the coolant temperature sensor, if required.
Tighten: Tighten the coolant temperature sensor to 23 N.m (17 lb ft).
- Install the heater inlet pipe stud, if required.
Tighten: Tighten the heater inlet pipe stud to 35 N.m (26 lb ft).
- Apply sealer GM P/N 12346004 (Canadian P/N 10953480) to the cylinder head plug.
- Install the cylinder head plug.
Tighten: Tighten the cylinder head plug to 20 N.m (15 lb ft).
IMPORTANT:
Use oversize valve stem seals if you install oversize valves.
NOTE:
Refer to FASTENER NOTICE
in Cautions and Notices.