RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Crankshaft Main Bearing: Description and Operation
CRANKSHAFT MAIN BEARINGS
DESCRIPTION
Main bearings (Fig. 27) are located in the cylinder block. One half of the main bearing is located in the crankshaft main bore the other half of the
matching bearing is located in the main bearing cap. there are five main bearings. Number three main bearing is flanged, this flange controls
crankshaft thrust.
OPERATION
The main bearings encircle the crankshaft main bearing journals, this aligns the crankshaft to the centerline of the engine and allows the crankshaft to
turn without wobbling or shaking therefore eliminating vibration. The main bearings are available in standard and undersizes.
