Models with Air Conditioning

20. Remove oil pump.
21. Remove and discard gasket.
22. Remove Woodruff key from crankshaft.
23. Remove oil pressure switch from pump.

Models with Air Conditioning

24. Remove oil temperature switch from pump,
25. Remove and discard sealing washer.

Refit

1. Ensure bolt holes in cylinder block are clean and dry.
2. Clean oil temperature switch and sealing washer.
3. Fit switch with new sealing washer and tighten to 20 Nm.

All Models

4. Clean oil pressure switch.
5. Apply Loctite sealant 577 to threads and tighten switch to 16 Nm.
6. Using gasket removal spray, remove all traces of gasket from cylinder block and oil pump.
7. Using solvent from sealant kit, part number GUG 705963GM, remove all traces of sealant from cylinder block.
8. Lubricate oil seal running surface on crankshaft with engine oil.
9. Fit Woodruff key to crankshaft.

10. Using sealant from kit, apply a bead of sealant to joint line of front main bearing cap and cylinder block.
11. Position a new gasket to cylinder block.

NOTE: Gasket must be fitted dry.

12. Replacement oil pump: Lubricate lip of oil seal with engine oil.

NOTE: Replacement oil pumps are supplied with crankshaft front oil seal fitted. A new oil seal is fitted to existing pumps after pump is fitted.