The Rod Bearing in Buick Skylark automobiles is an essential part for supporting crankshaft and other connecting rods in order to facilitate the rotation with least friction. These bearings are normally plain bearings and can be bi-metal or tri-metal in design. This assembly is made up of two metals, the outer shell comprises of aluminum alloy while the inner lining is made from silicone for added hardness and better seizure. Therefore, tri-metal bearings consist of a copper-lead alloy and have a lead-tin-copper overlay, thus offering increased strength and elevated fatigue properties. Through the years, the Buick Skylark models have had different Rod Bearing and especially with the performance series, new materials and coatings have been put into practice to increase the rod bearing's ability to endure high mechanical stresses and to decrease the friction. These performance Rod Bearings may exhibit certain eccentricity and are likely to have larger oil ways to fulfill the requirements of high-revving powerplants. This is because the Rod Bearing more often than not will not last as long as it is expected and for it to work appropriately in the engine, adequate oil clearance is required.