Q: How to Inspect Rod Bearing Defects in the Mercury Grand Marquis?
A: Look at connecting rod bearings for damaged patterns including fatigued craters, polished spots from faulty alignment, dirt imprints from engine oil, surface scratches from contaminated oil, worn bases from inadequate lubrication, wavy edges from journal breakdown, and single edge destruction caused by journal misalignment or poor installation.
Q: How to service and repair the connecting rod bearings on Mercury Sable?
A: Begin service and repair of connecting rod bearings after removing the oil pan together with potential removal of the oil pump. The connecting rod bearing caps together with connecting rods exist as a single set hence placing a wrong bearing cap could result in engine destruction. Trim the connecting rod bearing cap from its position first before removing the connecting rod bearings. Install the new connecting rod bearings by applying clean engine oil for lubrication because they represent precision components. Following the installation of connecting rod bearings for all replacement parts proceed by reinstalling the connecting rod bearing cap. The first step after reattaching the oil pump is to install the oil pan.