In-Chassis Repairs - General - Dodge D250 1990 Service Manual

Base Engine Components
DODGE Turbo Diesei
In-Chassis Repairs - General
Page9D-1
In-Chassis Repairs - General
Section 9D
The operations described in the next two sections (9E and 9F) are considered in-chassis procedures and include
those service repairs associated with the following engine parts and functions:
The next two Sections, however, do not describe all the service operations that can be done with the engine in-
chassis. Those in-chassis operations not appearing in these sections include:
The condition of the cylinder block and pistons are the limiting criteria for in-chassis repairs. If there is reason to
believe that either are severely damaged, the engine should be removed for major overhaul.
Prior to deciding on an in-chassis repair, inspect the air intake for evidence of ingestion of particles that could have
severely damaged the cylinder walls. Check the oil and oil filter to be sure the lube system is not thoroughly
contaminated with metal. Also check for rust In the coolant. Rust in the coolant can indicate build up in the passages
in the cylinder block that will require the block to be removed for cleaning. Also consider the condition of other
components, particularly those that are more difficult to replace in-chassis (camshaft, rear seal, etc.).
The in-chassis repairs procedures include prescribed checks of the hardware to determine if continued in-chassis
work is practical. If the conditional limits are not met, the engine should be removed for completion of the overhaul.
Cylinder Head
Valves, Guides and Seats
Push Rods
Rocker Levers
Camshaft
Tappets
Timing
Head Gasket
Front Crankshaft Seal
Vibration Damper
Flywheel Housing and Flywheel
Rear Crankshaft Seal
Fuel System (See Section 14)
Air and Exhaust System (See Section 11)
Cooling System (See Section 7)
Oil Pump (See Section 9B)
Oil Cooler and Cooler Cover Plate (See Section 9B)
Vacuum and Power Steering Pump (See Section 5)