Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
Push Rod: Service and Repair
Push Rod Replacement - Installation
CAUTION: All valve train components must be reassembled in the exact order and position from which they were removed.
NOTE: Lubricate the valve rocker arms with clean engine oil before installing.
1. Install the valve rocker arms to the valve rocker arm shaft. One type of valve rocker arm is used at all locations
2. Install the valve rocker arm retainers.
3. Center the valve rocker arms on the corresponding holes in the valve rocker arm shaft.
4. Install the new retainers. Use a drift of at least 13 mm (1/2 inch) in diameter.
CAUTION: Install the valve pushrods with the marked or painted end up in order to avoid damage or premature wear.
5. Install the pushrods, with the painted or marked end up.
CAUTION: Improper Installation of the valve rocker arm shaft bolts may cause valve rocker arm shaft breakage and piston to valve contact.
NOTE: Make sure the ball ends of the pushrods seat in the valve rocker arms.
6. Install the valve rocker arm shaft assembly.
7. Install the valve rocker arm shaft bolts.
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Tighten the bolts alternately to 55 Nm (40 ft. lbs.).
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Rotate the engine by hand in order to ensure free movement of the valve train.
8. Install the valve rocker arm cover.
