PLATE & FILM GP 3237220 - Caterpillar

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(2) Valve cover base rear bolt hole.
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(3) 147-5536 Indicator Contact Point. (4) Top edge of the valve bridge.
Install the 145-5191 Gauge Support Assembly in the rear bolt hole (2). The rear bolt hole is located in the valve cover base. Adjust the contact point (3) on the top edge of the valve bridge (4) .
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(5) Adjustment screw.
Loosen the locknut for the adjustment screw. Loosen the adjustment screw (5) several turns.
Apply a force of 5 N (1 lb) to 45 N (10 lb). Push down on the top contact surface of the valve bridge. Zero the indicator.
Turn the adjustment screw (5) clockwise until the dial indicator reads .038 mm (0.0015 inch). The correct measurement is equal to turning the adjustment screw 20 to 30 degrees after the screw contacts the end of the valve.
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(6) 148-7211 Bridge Nut Socket.
Hold the adjustment screw with the 148-7211 Bridge Nut Socket (6) in order to tighten the locknut to 30 4 N (22 3 lb). You may use a sliderule torque computer in order to determine the torque wrench dial reading for the different extensions. Refer to Special Instruction, SEHS7150 July 1991, "Snap On Torque Computer".Valve Lash Adjustment
Note: The valve bridges MUST be adjusted before making the valve lash adjustments.
Table 3
Valve Lash Setting: Engine Stopped    
Valves     Gauge Dimension    
Inlet    
0.50 mm (.020 inch)    
Exhaust    
1.00 mm (.040 inch)    
Ensure that the number 1 piston is at the top center position. Refer to Systems Operation, Testing And Adjusting, "Finding Top Center Position For No. 1 Piston"
The number 1 piston should be at the top center position of the correct stroke. Make adjustments to the valves as shown in the chart: Refer to Systems Operation, Testing And Adjusting, "Crankshaft Positions For Unit Injector Adjustment And Valve Lash Setting"Note: Tap each rocker arm on the top of the adjustment screw before making any adjustments. Use a soft hammer. Make sure that the lifter roller is seated against the base circle of the camshaft.
Illustration 10 g00286365
(1) 145-5191 Gauge Support Assembly. (2) 147-2057 Indicator Contact Point.
Install the 145-5191 Gauge Support Assembly (1). Use the 147-2056 Dial Indicator or use the 147-5537 Dial Indicator. Use the 147-2057 Indicator Contact Point (2). Install the tool in the rear bolt hole. The rear bolt hole is located on the valve cover base.
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(3) 147-2060 Wrench. (4) 147-2059 Torque Wrench.
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(3) 147-2060 Wrench. (4) 147-2059 Torque Wrench.
Move the rocker assembly upward and move the rocker arm assembly downward. Move the rocker assembly several times. The oil film is removed in order to get a true zero reading on the dial indicator. Use the 147-2060 Wrench (3) and use the 147-2059 Torque Wrench (4). Install the socket wrench and install the torque wrench on the nut of the rocker arm. Apply upward pressure to the front of the rocker assembly. Set the dial indicator