Sentra GXE L4-1.8L (QG18DE) (2000)
27. Remove water pump pulley and water pump.
28. Remove front cover bolts and front cover as shown.
1: Located on water pump
2: Located on power steering pump adjusting bar, remove the bar
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Inspect for oil leakage at front oil seal. Replace seal if oil leak is present.
29. Remove timing chain.
30. Remove oil pump drive spacer.
31. Remove chain guides.
32. Remove crankshaft sprocket.
33. Remove O-rings from cylinder block and front cover.
Inspection
Check for cracks and excessive wear at roller links. Replace if necessary.
Installation