Base Engine Components Description; Cylinder Head And Valve Train In-Chassis Repair - Dodge D250 1990 Service Manual

General Overview - in and Out-of-Chassis Repairs
Page 9C-2
Base Engine Components
DODGE Turbo Diesel
Operation and Description - Base Engine
Components
Cylinder Head and Valve Train
ln-Chassls Repair
The cylinder head is a one piece, crossflow design with two
valves per cylinder. The head has integrally cast valve guides
and hardened valve seat surfaces which can be repaired in a
machine shop using the appropriate service parts.
The cylinder head has a cast intake manifold, fuel filter head,
thermostat housing and an internal water bypass. The injectors
are mounted in the head for direct injection into the cylinders.
Separate pedestals for each cylinder are used to support and
route oil to the rocker levers.
The cylinder head gasket is a steel plate design with print o-
seal on both sides around the water holes. A fire ring in the
gasket seals the cylinder bores. As discussed in the Cooling
System, the gasket also provides orifices to control coolant
flow.