3516E Engines for Caterpillar Built Machines Caterpillar

Installation Procedure

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Illustration 1	g01119759

1. Loosen jam nut (8) and adjustment screw (7). Loosen jam nut (10) and adjustment screw (9).
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   Illustration 2	g01131377

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   Illustration 3	g01946786
   Floating valve bridge (X) Round pocket (Y) Slotted pocket (Z) Outside of engine

2. Apply clean engine oil to pushrod (5).

3. Apply clean engine oil to valve pushrods (4), and the cup of the valve lifters. Install valve pushrods (4) in the original location.

4. For floating valve bridge assemblies, use the following procedure.

   1. Apply clean engine oil to the contact surface of bridge assemblies (3) and the valve stems. Install bridge assemblies (3) on the valve stems.

   2. Install the bridge assemblies with the round pocket toward the outside of the engine. Refer to Illustration 3.
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   NOTICE
   Ensure that the crankshaft and the camshafts are in time with each other. Also ensure that the adjustment screws in the rocker arms are loosened completely before the bolts on the rocker shaft are tightened or damage to the valves and the pistons may occur.

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   NOTICE
   If the rocker shaft is not positioned correctly, the oil supply to the sleeve bearings in the rocker arm will be shut off. This will cause seizure of the bearings and severe damage to the engine. Be sure to orient the rocker shaft in the correct position.

5. Place rocker shaft assembly (2) in position on valve mechanism cover base (6). Make sure that valve pushrods (4) and pushrod (5) are aligned with the rocker arms. Install bolts (1). Tighten the bolts to a torque of 215 ± 40 N·m (160 ± 30 lb ft).
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   Illustration 4	g01119849

6. Adjust the valve lash according to Testing and Adjusting, "Valve Lash and Valve Bridge Adjustment". Hold adjustment screw (7) of the rocker arm assembly and tighten jam nut (8) to a torque of 70 ± 15 N·m (52 ± 11 lb ft).

7. Adjust the electronic unit injector lash according to Testing and Adjusting, "Fuel Injector Adjustment". Hold adjustment screw (9) of the rocker arm assembly and tighten nut (10) to a torque of 120 ± 15 N·m (89 ± 11 lb ft).

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1. Install the valve mechanism cover.