S-Type (X200) V8-4.2L (2005)
12. Remove the primary timing chain.
13. Remove the primary timing chain tensioner guide.
14. CAUTION: Make sure the secondary timing chain and camshaft sprockets are free to rotate.
Loosen the camshaft sprockets.
15. Remove the oil pump.
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Remove and discard the gasket.
Installation
All vehicles
1. Install the oil pump.
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Install a new gasket.
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Tighten to 12 Nm.