Toyota
Dodge Durango
 Service Manual
Engine » Description and operation
Camshaft

DESCRIPTION

The camshafts consist of powdered metal steel lobes which are sinter-bonded to a steel tube. A steel post or nose piece is friction-welded to the steel camshaft tube. Five bearing journals are machined into the camshaft, four on the steel tube and one on the steel nose piece. Camshaft end play is controlled by two thrust walls that border the nose piece journal.

Engine oil enters the hollow camshafts at the third journal and lubricates every intake lobe rocker through a drilled passage in the intake lobe.

Rocker arm

DESCRIPTION

The rocker arms are steel stampings with an integral roller bearing. The rocker arms incorporate a 2.8 mm (0.11 inch) oil hole in the lash adjuster socket for roller and camshaft lubrication.

Cylinder head cover

DESCRIPTION

The cylinder head covers are made of die cast magnesium, and are not interchangeable from side-toside.

It is imperative that nothing rest on the cylinder head covers. Prolonged contact with other items may wear a hole in the cylinder head cover.

Oil pan

DESCRIPTION

The engine oil pan is made of laminated steel and has a single plane sealing surface. The sandwich style oil pan gasket has an integrated windage tray and steel carrier. The sealing area of the gasket is molded with rubber and is designed to be reused as long as the gasket is not cut, torn or ripped.

    More about «Description and operation»:

    Engine

    Engine lubrication system

    Cylinder block

    Crankshaft

    Piston and connecting rod

    Cylinder head

    Valve guides

    Timing drive system

    Camshaft

    Structural dust cover

    Exhaust manifold

    Dodge Durango Service Manual / Engine / Description and operation / Camshaft

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