RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
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Press the transmission side of the crankshaft shaft seal out of the lower timing chain cover.
Installing
Installation is in reverse order of removal, note the following:
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Pull alignment bushing out of top right of cylinder block.
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Chamfer the alignment bushing with a file, as shown in the illustration.
‹› Dimension - x - = 6.5 mm.
‹› Dimension - y - = 8 mm.
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Install the alignment bushing into the cylinder block so that the chamfered side faces upward.
‹› The chamfer simplifies installation of the lower timing chain cover with cylinder head installed.
CAUTION!
Wear safety glasses.
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Using e.g. a rotating plastic brush, remove sealant residue on cover for timing chain and on cylinder block and head.