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| Illustration 1 | g00286271 |
147-5482 Valve Lash Gauge Group (1) 147-2060 Wrench (2) 147-2059 Torque Wrench (3) 148-7211 Bridge Nut Socket (4) 145-5191 Gauge Support (5) 147-2056 Dial Indicator (6) 147-5536 Indicator Contact Point (7) 147-2057 Indicator Contact Point (8) 147-2058 Indicator Extension | |
| Tools Needed | Quantity |
| 147-2060 Wrench | 1 |
| 147-2059 Torque Wrench | 1 |
| 148-7211 Bridge Nut Socket | 1 |
| 145-5191 Gauge Support | 1 |
| 147-2056 Dial Indicator | 1 |
| 147-5536 Indicator Contact Point | 1 |
| 147-2057 Indicator Contact Point | 1 |
| 147-2058 Indicator Extension | 1 |
| 147-5537 Dial Indicator (not shown) | 1 |
Note: The 145-5191 Gauge Support (4), the 147-2057 Indicator Contact Point (7), the 147-2058 Indicator Extension (8), and the 147-5536 Indicator Contact Point (6) are included in the 147-5482 Valve Lash Gauge Group .
Note: The 147-2056 Dial Indicator or the 147-5537 Dial Indicator (Metric, not shown) can be used with the 147-5482 Valve Lash Gauge Group .
Valve Bridge Adjustment
Note: When the 147-5482 Valve Lash Gauge Group is used, it is not necessary for you to remove the rocker arm shaft assemblies. The valves must be fully closed when the adjustment is made. Refer to Testing And Adjusting, "Finding the Top Center Position for the No. 1 Piston".
Installation
- Assemble the 147-2058 Indicator Extension and the 147-5536 Indicator Contact Point on the 147-2056 Dial Indicator or on the 147-5537 Dial Indicator .
- Install the 145-5191 Gauge Support in rear bolt hole (2). The rear bolt hole is located in the valve cover base. Adjust contact point (3) on the top edge of valve bridge (4) .
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| Illustration 2 | g00286279 |
145-5191 Gauge Support (1) Knurled knob | |
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| Illustration 3 | g00286280 |
(2) Rear bolt hole | |
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| Illustration 4 | g00286281 |
(3) 147-5536 Indicator Contact Point (4) Top edge of the valve bridge | |
- Loosen the locknut for the adjustment screw. Loosen adjustment screw (5) by several turns.
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| Illustration 5 | g00286283 |
(5) Adjustment screw | |
- 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 in the clockwise direction until the dial indicator reads 0.038 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.
- 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).
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| Illustration 6 | g00286364 |
(6) 148-7211 Bridge Nut Socket | |
Valve Lash Adjustment
Note: Adjust the valve bridges before you make the valve lash adjustments.
| Valve Lash Setting: Engine Stopped | |
| Valves | Gauge Dimension |
| Inlet | 0.50 mm (0.020 inch) |
| Exhaust | 1.00 mm (0.040 inch) |
- Ensure that the No. 1 piston is at the top center position. Refer to Testing And Adjusting, "Finding the Top Center Position for the No. 1 Piston".
- The No. 1 piston should be at the top center position of the correct stroke. Make adjustments to the valves according to the chart: Refer to Testing And Adjusting, "Crankshaft Position for Fuel Injector Adjustment and Valve Lash Setting".
Note: Tap each rocker arm on the top of the adjustment screw before you make any adjustments. Use a soft hammer. Make sure that the lifter roller is seated against the base circle of the camshaft.
- Install the 145-5191 Gauge Support (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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| Illustration 7 | g00286365 |
(1) 145-5191 Gauge Support (2) 147-2057 Indicator Contact Point | |
- Move the rocker arm 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 to zero. The weight of torque wrench (4) allows the valve lash to be read. Do not apply any pressure on the torque wrench.
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| Illustration 8 | g00286366 |
(3) 147-2060 Wrench (4) 147-2059 Torque Wrench | |
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| Illustration 9 | g00286367 |
(3) 147-2060 Wrench (4) 147-2059 Torque Wrench | |
- Loosen the locknut. The locknut is located on the adjustment screw of the push rod. Turn the adjustment screw until the valve lash is set to specifications. Tighten the nut for the adjustment screw to 70 ± 15 N·m (52 ± 11 lb ft ). Check the adjustment again.