Engines Powertrain
• An automatic timing chain tensioner is fitted to ensure optimum chain tension over the
service life of the engine.
• The timing chain tensioner operates using engine oil pressure.
NOTE: The timing chain tensioner must be inserted together with the timing chain and the
camshafts into the cylinder head upper part, as it is impossible to fit it afterwards.
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1 Chain guides
• For verifying or adjusting the valve timing the timing marks on the crankshaft sprockets
have to be aligned with the gold-colored plates on the timing chain links.
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1 Timing mark 2 Gold-colored plate
01-108 Curriculum Training
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