Dodge Durango

 Service Manual

Engine » Description and operation
Piston and connecting rod

DESCRIPTION

CAUTION: Do not use a metal stamp to mark connecting rods as damage may result, instead use ink or a scratch awl.

EARLY BUILD

The pistons are made of a high strength aluminum alloy with an anodized top ring groove and crown. Piston skirts are coated with a solid lubricant (Molykote) to reduce friction and provide scuff resistance. The connecting rods are made of forged powdered metal, with a "fractured cap" design. A pressed fit piston pin is used to attach the piston and connecting rod.

LATE BUILD

The pistons are made of high strength aluminum alloy. The top ring groove and crown are Not anodized, instead the top ring is coated with an anti-scuff coating to reduce friction on the top ring. The piston skirts are coated with a solid lubricant (Molykote) to reduce friction and provide scuff resistance. The connecting rods are made of forged powdered metal, with a "fractured cap" design. A pressed fit piston pin is used to attach the piston and connecting rod.

Engine

Engine lubrication system

Cylinder block

Crankshaft

Piston and connecting rod

Cylinder head

Valve guides

Timing drive system

Camshaft

Structural dust cover

Exhaust manifold