Turbocharger - Diesel: Description
The turbocharger used on turbodiesel models is mounted on the passenger side of the engine. Components include the turbine, compressor wheel, rotor shaft, bearings, and housing.
A wastegate valve prevents excessive boost pressure. Modifications made to the XD2 diesel engine to accept the turbocharger are as follows:
New intake and exhaust manifolds were designed. Cylinder heads have new valve seat material, brass valve guides, special swirl chambers and new head bolts. Oil spraying jets were added to cylinder block to help cool inner piston skirts. Crank pin diameter was increased by .19" (5 mm).
Connecting rod diameter on both ends was increased. Pistons have a new clover design in the crown and wrist pin diameter was increased by .07" (2 mm). An oil cooler and oil pump with increased output were also added.