S 420 (140.043) V8-4.2L (119.981) (1996)
18. Insert conrod bearing shells, install conrod bearing caps with conrod bearing shells and tighten conrod nuts or bolts to: 35 Nm.
19. Measure bearing diameter and note.
20. Measure conrod bearing journals and determine conrod bearing radial play.
NOTE:
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The bearing play can be corrected by replacing the conrod bearing shells.
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Aim for the average value of the bearing play stated.
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Conrod bearing shells without color coding are thicker than those with blue color coding; note, however, that the wall thicknesses with and
without color coding may overlap
21. Assemble pistons and conrod. See: Piston/Service and Repair
22. Moisten bearing shells, crankshafts, pistons and cylinders with SAE 30 engine oil.
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Install conrod with pistons.
CAUTION:
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Pay attention to matchmark identification.
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Install the bearing shells with the oil drilling in the conrod otherwise the conrod bushes will not be lubricated.
23. Tighten conrod bolts. See: Connecting Rod/Service and Repair
24. Measure conrod bearing axial play.
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Inspect clearance of conrods in piston.
CAUTION:
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Disassemble oil pump, clean, replace if necessary.
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Replace oil delivery valve.
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Clean oil filter, carefully clean air-oil cooler or replace.
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Install initial operation oil filter element.
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Change engine oil and oil filter element after 1000-1500 km.