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To prevent possible injury, do not use the starter motor to turn the flywheel. Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance. |
Due to initial wear and seating of valve train components, the initial valve lash adjustment for new engines and for rebuilt engines is scheduled at the First 250 Service Hours.
Subsequent valve lash checks and adjustments is scheduled for Every 4000 Service Hours.
Check the valve bridge before setting the valve lash. Ensure that the valve bridge is seated equally on both valve stems. Adjust the valve bridge before setting the valve lash.
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Operation of AVSpare engines with improper valve adjustments will reduce engine efficiency. This reduced efficiency could result in excessive fuel usage and/or shortened engine component life. |
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Electrical shock hazard. The electronic unit injector system uses 90-120 volts. |
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Measure the valve clearance with the engine stopped. To obtain an accurate measurement, allow at least 20 minutes for the valves to cool to engine cylinder head and engine block temperature. |
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| Illustration 1 | g00857438 |
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(A) Inlet Valves
(B) Exhaust Valves | |
An adjustment is not required if the valve clearance settings are within
| VALVE CLEARANCE SETTING CHART | |
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| Intake Valve | |
| Exhaust Valve | |
Refer to your machine's Service Manual or your AVSpare dealer for the complete valve adjustment procedure.