Beetle L4-2.0L (AEG) (2000)
Lifter / Lash Adjuster: Testing and Inspection
Hydraulic lifters, checking
Special tools and equipment
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Feeler gauge
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Wooden or plastic wedge
Note:
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Replace faulty lifter complete (cannot be adjusted or repaired).
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Irregular valve noises when starting the engine are normal.
Test sequence
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Start engine and run until radiator fan has switched on once.
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Increase engine speed to about 2500 RPM for approximately 2 min.
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If lifter(s) are still noisy, locate faulty lifter(s) as follows:
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Remove intake manifold upper part
Note: Seal the open portions of the lower intake manifold against dirt etc. with clean shop rags.
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Remove cylinder head cover.
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Rotate crankshaft clockwise, until cam of lifter to be checked is pointing upward.
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Determine play between cam and lifter.
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If play is in excess of 0.2 mm, replace lifter. If play is less than 0.1 mm or no play, proceed with check as follows:
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Push hydraulic lifter down lightly with a wooden or plastic wedge. If when pushed down a 0.2 mm thick feeler gauge can be inserted between
camshaft and lifter, replace that lifter.
Note: DO NOT start the engine for approximately 30 minutes after installing new lifters. Hydraulic compensation elements in the lifters must
settle otherwise the valves will strike the pistons.