Cylinder Head Or Gasket; Valve Spring Removal Hook-Up; Valve Spring Removal; Replace - Pontiac Grand Prix Service Manual

SIX CYLINDER ENGINE 6-15
Fig. 6-23 Valve Spring Removal Hook-Up
6. Hold J 22263-2 in place and install fork end of
compressor J 22263-1 on J 22263-2 (Fig. 6-24).
7. Pivot J 22263 so that the recessed side of the disc
contscts the valve spring retainer cup shield.
8. Depress valve spring using compressor J 22263-1
and remove valve spring retainer cup locks, then both
pieces of the valve spring compressor, valve spring and
retainer
CUD
shield. valve stem seal. and intake valve
quick seal.
REPLACE
1. Install valve spring and valve spring retainer cup
and compress spring with both pieces of J 22263 (while
holding valve up with compressed air and J 22278).
2. Install valve stem seal, intake valve guide seal and
retainer cup locks. Remove both pieces of valve spring
compressor, then test valve stem seal using J 22330.
When replacing intake valve guide seals, place plastic
installation cap over valve stem and push valve guide
seal into place using a seal installing tool VSIT-1 (Fig.
6-25).
3. Replace spark plug.
4. Install rocker arm.
CYLINDER HEAD OR GASKET
REMOVE
1. Drain cooling system and remove air cleaner.
2. Disconnect accelerator pedal cable at bell crank on
manifold and fuel and vacuum lines at carburetor.
3. Disconnect exhaust pipe at manifold flange, then
remove manifold bolts and clamps and remove
manifolds and carburetor as an assembly.
4. Remove rocker arm cover assembly.
5. Remove timing belt upper front cover mounting
support bracket and rear lower cover.
6. Disconnect spark plug wires.
7, Remove rocker arms and hydraulic valve lash
adjusters. Store rocker arms and hydraulic lash
adjusters so that they can be replaced in exactly the
same location.
8. Remove cylinder head bolts, cylinder head and
gasket. Place cylinder head on two blocks of wood to
prevent damage.
9. Clean gasket surfaces of cylinder head and block.
REPLACE
When installing new head, transfer all serviceable
parts to new head using new seals on intake and
exhaust valve stems and new manifold gaskets.
5. Install rocker arm cover assembly.
Fig. 6-24 Valve Spring Removal