Crankshaft Main Bearing

Crankshaft bearing

Crankshaft bearing





Crankshaft Main Bearing Selection

Block Bore Code Location
Letters or bars have been stamped on the end of the engine block as a code for the size of each of the four main journal bores.
Use them, and the numbers stamped on the crankshaft (codes for main journal size), to choose the correct bearings. If the codes are indecipherable because of an accumulation of dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.









Main Journal Code Locations (Numbers or Bars)





Crankshaft Main Bearing Cap Bolts





Tighten the main bearing cap bolts, then tighten the main bearing cap side bolts to the specified torque in the sequence as shown. Repeat the torque sequence again to ensure the bolts are properly torqued.