A3 L4-2.0L Turbo (CBFA) (2008)
Balance Shaft: Service and Repair
Intake Camshaft Balance Shaft
Intake Camshaft Balance Shaft
Removing
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Remove the coolant pump toothed belt.
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Remove the camshaft timing chain.
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Remove the balance shaft timing chain.
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Remove the intermediate shaft sprocket -1-.
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Remove the intake camshaft balance shaft -2-.
Installing
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Lubricate the balance shaft bearing with engine oil.
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Install the intake camshaft balance shaft.
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Replace the O-ring -1- and coat with engine oil.
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Coat the mounting pin with engine oil and insert it. The alignment pin -arrow- for the mounting pin must engage in the hole in the cylinder block.
CAUTION: Always replace the intermediate shaft sprocket. Otherwise the backlash will not adjust itself and it could result in engine
damage.
The new intermediate shaft sprocket has an anti-friction coating that wears off after a short period of use, which automatically adjusts the
backlash.