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Dodge Ram 50, Dodge D50, Plymouth Arrow Repair Manual 1979-1993

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  • Item Description
  • Table of Contents
  • Specifications

This Chilton repair and service manual covers 1979-1993 Dodge Ram 50, 1979-1993 Dodge D50, and 1979-1993 Plymouth Arrow pick-up trucks, US and Canadian models, with gasoline and diesel engines:

  • 2.0L
  • 2.6L
  • 2.4L MFI
  • 3.0L MFI
  • 2.3L diesel

Book Excerpt: 1979-1993 Dodge Ram 50, Dodge D50, Plymouth Arrow Repair Manual

TIMING BELT AND COVERS

REMOVAL AND INSTALLATION

2.0L ENGINE
(See Figures 103 thru 115, p.73-33)

Note: These engines have two timing belts. One connects the crankshaft and camshaft, the second one drives the right silent shaft.

  1. With the vehicle in Neutral (manual) or P (automatic), make certain the parking brake is set and the wheels are blocked. Disconnect the negative battery cable.
  2. Remove the water pump drive belt and water pump pulley. If the vehicle is equipped with air conditioning, loosen the compressor belt tensioner and remove the compressor belt.
  3. Remove the bolts holding the crankshaft pulley(s) and remove the pulley(s).
  4. Remove the upper and lower timing belt covers and their gaskets.
  5. Use a socket wrench on the projecting crankshaft bolt to turn the engine clockwise (ONLY!) and align all the timing marks on the sprockets and cases. It may be necessary to wipe off the area to see the marks clearly. Do not use spray cleaners around the timing belt.

    When all of the marks align exactly, the engine is set to TDC/compression on No. 1cylinder. From this point onward, the camshaft and crankshaft positions MUST NOT be changed.

  6. If the timing belt is to be reused, make a chalk or crayon arrow on the belt showing the direction of rotation so that it may be reinstalled correctly. (continued)

DIESEL FUEL SYSTEM
GENERAL INFORMATION

The diesel combustion system works on different principals than a gasoline engine?s combustion system. In a gasoline engine, the air/fuel charge is moderately compressed by the stroke of the piston. The spark plug fires, burning the fuel in the cylinder. As it burns, the air/fuel charge expands, driving the piston downward.

The diesel is compression fired; that is, no external source of heat or spark is used to ignite the fuel charge. As any substance is compressed, it develops heat. If a flammable substance ? fuel- is compressed sufficiently, it will burn or explode. The diesel engine uses compression within the cylinders to ignite the fuel charge, which again drives the piston downward as it expands.

For reference, normal compression within a gasoline engine is about 8.5:1 with fully developed racing engines reaching around 13.0:1, The diesel engine uses a compression ratio of about 21.0:1. The act of compressing the air/fuel mixture to this level generates tremendous heat (about 1700F) and it is this heat which ignites the fuel.

The fuel injection pump is the heart of the system, drawing fuel through the filter and delivering it to the injectors at the proper time in the combustion cycle. This mechanically driven pump must be kept in perfect synchronization with the engine.

The first sign of diesel trouble usually show up at the injection nozzles. An injector may fail or it may become blocked or stuck from dirt in the fuel. Listed below are some signs of injector trouble:

  • Heavy knocking noises from the injectors of one or more cylinders.
  • Engine overheating.
  • Loss of power, particularly under load or acceleration.
  • Smokey black exhaust.
  • Increased fuel consumption.

TABLE of CONTENTS:

Introduction: About this manual | Introduction | Vehicle identification numbers | Maintenance techniques, tools and working facilities | Buying parts | Jacking and towing | Booster battery (jump) starting | Conversion factors | Automotive chemicals and lubricants | Safety first! | Troubleshooting

  • Tune-up and routine maintenance
  • Engine and overhaul procedures
  • Cooling, heating and air-conditioning systems
  • Fuel and exhaust systems
  • Engine electrical systems
  • Emissions control systems
  • Transmission
  • Brakes
  • Suspension and steering systems
  • Body
  • Chassis electrical system
  • Wiring diagrams
Subject: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993 Dodge Ram 50, D50, Plymouth Arrow service, maintenance, repair. ISBN-10: 0801990890 | ISBN-13: 9780801990892 | Chilton part no. 20800

  • Publisher: Chilton Manuals
  • Pages: 324 - Hundreds of b&w photos and illustrations
  • Binding: Paperback - 8.5 x 11 inches
  • ISBN: 978-0-8019-9089-2
  • Years: 1979 - 1993
  • Dodge Ram 50, D50; Plymouth Arrow Repair Manual 1979-1993
    $23.95