Cylinder Head - Assemble

Tools Required: J 8062  Valve Spring Compressor

1. Install the new cylinder head cup plug, if necessary. Coat the plugs with Sealer GM P/N United States 12345382, GM P/N Canada 10953489 or an equivalent.
   NOTE: In order to avoid damage, install the spark plugs after the cylinder head has been installed on the engine.
Fig 1: Cylinder Head Cup Plugs
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2. Install the valve.
3. Install the valve rotators (intake valves only).
   Fig 2: Installing Valve Rotators (Intake Valves Only)

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4. Install the new valve stem seals. Fully seat the seals on the valve guides.
   Fig 3: Valve Stem Seals

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5. Install the valve spring seat (exhaust valves only).
6. Install the valve springs.
7. Install the valve retainers.
Fig 4: Valve Retainers
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8. Compress the valve springs, using the J 8062  .
9. Install the valve spring keepers.
10. Slowly release the J 8062  from the valve/spring assembly.
11. Inspect for proper seating of the valve spring keepers.
    Fig 5: Valve Spring Keeper

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12. Inspect the O-ring for damage. If the O-ring is damaged, replace the O-ring.

    Important:  Do not roll or twist the O-ring.

13. Install the O-ring.
14. Install the coolant outlet. Tighten the bolts to 26 N.m (19 ft lbs).
    Fig 6: Coolant Outlet

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