HOUSING 2195804 - Caterpillar

Illustration 20 g00498237
Rocker arm with the pin
(1) 146-2742 Gas Inlet Valve Test Tool
(2) Pin
Install the dial indicator into tool (1). Install the dial indicator onto the rocker base. If the rocker has a pin (2) in the side, align the tip of the dial indicator with the center of the pin.
Illustration 21 g00500314
Rocker arm with a counterbore
(3) Counterbore
If the rocker arm has the counterbore (3), align the tip of the dial indicator with the center of the counterbore.Note: Make sure that the rocker arm is pressed to the left to indicate the maximum lash.
Illustration 22 g00500316
Lift the end of the rocker arm that has the adjusting screw. Zero the dial indicator.
Illustration 23 g00500317
While you are firmly rotating the rocker arm in the opposite direction, push the rocker arm toward the exhaust valve rocker arm.
Rotate the rocker arm away from the upper pushrod and push the rocker arm toward the exhaust valve's rocker arm. Read the dial indicator. The correct setting is listed in Table 10. If the lash is within specifications, remove the tooling and go to the next valve.
After each adjustment, tighten the nut for the adjustment screw to a torque of 30 4 N m (22 3 lb ft). Check the adjustment again. Repeat the procedure, if necessary.
If the lash is not within specifications, loosen the adjusting locknut. While you are holding the rocker arm in the position from Step 5, turn the adjusting screw until the correct lash is seen on the dial indicator. Refer to Table 10 for the correct setting. Tighten and torque the locknut. Recheck the setting.
Perform the procedure for the remaining valves.
After all valves are adjusted for the TC compression stroke, remove the crankshaft timing pin. Rotate the flywheel for 360 degrees in the direction of the normal crankshaft rotation. This will put No. 1 piston at TC exhaust stroke. Install the timing pin. Complete the adjustments for the cylinders that remain.Crank Angle Sensor And Speed Sensors
Use the following procedure to adjust the mounting plate for the crank angle sensor and the speed sensors.
Illustration 24 g00498303
124-3349 Plate
While the engine is stopped, assemble the timing control for the crank angle sensor in hole (E). Turn the sensor until the sensor contacts the flywheel. Unscrew the sensor for 5/8 of a turn. Tighten the locknut to a torque of 45 7 N m (33 5 lb ft). The correct clearance between the sensor and the flywheel is 0.55 to