Passat Wagon L4-1.9L DSL Turbo (AHU) (1997)
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Valve: Service Precautions
VALVE PISTON CONTACT
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Use care when turning crankshaft or camshaft while toothed timing belt is loose or disconnected.
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Piston valve contact is possible and may cause internal engine damage.
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After installing new lifter(s) or cylinder head the engine MUST NOT be started for approx. 30 minutes.
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Hydraulic build up in the lifters MUST subside, otherwise the valves will strike the pistons.
