K 2500 Truck 4WD V8-305 5.0L VIN M SFI (1998)
Rocker Arm Assembly: Service and Repair
REMOVAL PROCEDURE
1. Remove the valve rocker arm cover.
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Refer to Valve Rocker Arm Cover Removal (Left) under Engine Unit Repair.
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Refer to Valve Rocker Arm Cover Removal (Right) under Engine Unit Repair.
IMPORTANT: Store used components in order so that they can be reassembled in the same location.
2. Remove the valve rocker arm nut.
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If only the pushrod is being replaced, back the valve rocker arm nut off until the valve rocker arm can rotate away from the pushrod.
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Then remove the pushrod.
3. Remove the valve rocker arm with the ball.
4. Remove the pushrod.
5. Clean and inspect all parts. Refer to Valve Rocker Arm and Push Rods Clean and Inspect under Engine Unit Repair.
INSTALLATION PROCEDURE
IMPORTANT: When new valve rocker arms and/or balls are installed, coat their bearing surfaces with a high viscosity lubricant containing zinc,
such as GM P/N 1052367.
