Tools Required

J 9290-01 Valve Lifter Remover (Slide Hammer Type)

1. Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
2. Remove the intake manifold. Refer to Intake Manifold Replacement .
3. Remove the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
4. Remove the valve lifter retainer and guides.



5. Remove the valve lifters. Remove the valve lifters one at a time. Place them in an organizer rack. The valve lifter must be installed in the same bore from which the valve lifters were removed. A stuck valve lifter can be removed using the J 9290-01 .
6. Inspect the valve lifter body for scuffing and scoring. If the valve lifter body wall is worn or damaged, the mating bore in the block should also be checked.
7. Check the fit of each valve lifter in its mating bore in the block. If the clearance is excessive, try a new valve lifter.
8. Check the roller for freedom of movement. The valve lifter (roller type) must not have any flat spots. If worn, pitted, or damaged, the mating camshaft lobe should also be checked.

Important: 

1. When new valve lifters or a new camshaft is installed, change the engine oil and the oil filter.
2. High viscosity oil containing zinc GM P/N 1051396 or the equivalent should be added to the crankcase oil.
3. Replace all valve lifters when a new camshaft is installed.
1. Install the valve lifters into the block. Lubricate the valve lifters (roller type) with High Viscosity Oil containing zinc GM P/N 1052367 or the equivalent.



2. Install the valve lifter retainer and guides.
3. Install the intake manifold. Refer to Intake Manifold Replacement .
4. Install the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
5. Adjust the valves. Refer to Valve Lash Adjustment .
6. Install the valve rocker arm cover and gasket. Refer to Valve Rocker Arm Cover Replacement .