Camshaft - Description

DESCRIPTION

The camshafts are multiple-piece components with six machined lobes that are mounted to a hollow shaft with an interference fit. The cam lobes are induction hardened. Each camshaft has four bearing journals except for the right-bank intake camshaft. Due to the longer length needed to accommodate the centrifugal oil separator, the right-bank intake camshaft has five bearing journals. The camshaft journals have the same diameter and are supplied with oil pressure through lubrication passages in the cylinder head journals. The cylinder head covers provide the upper bearing support for the camshafts. Each camshaft contains two retaining brackets, which prevent the camshafts from coming out of their journals when the cylinder head covers are removed. The retaining brackets are not designed to hold the camshafts if the engine is be rotated without the cylinder head covers. Special tool #9555 must be installed if the engine is rotated without the cylinder head covers.