Q: How to Inspect Rod Bearing Defects in the Mercury Grand Marquis?
A: Examine the connecting rod bearings for defects such as cratering fatigue, spot polishing from improper seating, dirt embedded from engine oil, scratches from contaminated oil, base exposure due to inadequate lubrication, edge wear from journal damage, and uneven wear from a tapered journal or incorrect bearing seating.
Q: How to service and repair the connecting rod bearings on Mercury Sable?
A: Removing oil pump and oil pan (when necessary) is necessary to repair connecting rod bearings. The bearing caps and rods are a one-to-one fit; otherwise damage may occur. Change bearings with lubricated bearings, re-attach the caps and so on. Install back the oil pump and oil pan (where removed).