Valve Timing, Checking

Special tools and workshop equipment required 

• Dial Gauge Set:VAS6341 
• Dial Gauge Adapter:T10170A 

-- Remove timing chain upper cover. Refer to UPPER TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Remove the noise insulation. Refer to NOISE INSULATION .

-- Turn the crankshaft with the socket SW 24 on the vibration damper in the direction of the engine rotation until the markings -arrows- are almost on top.

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-- Remove the spark plug from cylinder 1.

-- Install the :T10170/A  all the way into the spark plug thread.

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-- Insert the :VAS6341  using the :T10170A/1  until stop and secure with the locking nut -arrow-.

-- Turn the crankshaft slowly to maximum dial reading in the direction of the engine rotation. When the maximum dial reading is reached (Bottom Dead Center (BDC) of the meter) position the piston at >>Top Dead Center (TDC)<<.

• The notch on the vibration damper must line up with the arrow marking on the timing chain lower cover -arrow-.

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• The markings -1- on the camshaft chain sprockets must be opposite the markings -2 and 3- on the cylinder head.