General Information Section 0 - Engine Disassembly and Assembly - Group 00 M11 Page 0-10 Engine Disassembly and Assembly - General Information These procedures apply to M11 engines. The differences between engine models, due to the application and optional equipment on an engine, is included in the instructions. Omit the steps that do not apply to the engine being rebuilt. 1. A Warning statement is included for any component or assembly that weighs more than 23 Kg [50 lb]. To avoid personal injury, use a hoist or get assistance from more than one person when removing or installing these parts. 2. Most of the capscrews used on the M11 engine are metric.
Some components, such as the air compressor and fuel pump, are installed using U.S. Customary capscrews. All fasteners have right-hand threads unless a Caution states that a fastener has left-hand threads. Disassembly Warning: Some state and federal agencies in the United States of America have determined that used engine oil can be carcinogenic and can cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. The instructions in this procedure are organized in a logical sequence to disassemble the M11 engine. This is not the only sequence to disassemble a M11 engine. Certain parts must be removed in the sequence indicated.
Use this sequence until you become familiar with the engine. Discard all gaskets, seals, hoses, filters, and o-rings unless these parts are needed for a failure analysis. Label, tag, or mark the parts for location as they are removed. This will help find all of the parts that can be involved in a failure, and simplify the assembly procedure. Label, tag, mark, or photograph all special equipment prior to the removal from an engine. This engine assembly procedure does not include the installation of special optional equipment. Force must be used to remove certain parts. A mallet can be used when force is required. All of the fasteners must be removed before using force.
Avoid as much dirt as possible during disassembly. The accumulation of additional dirt will make it more difficult to clean the components. Assembly This procedure assumes that all of the components and assemblies have been cleaned, replaced, or rebuilt and are ready to be installed on the engine. Torque values are listed in each step. If a torque value is not specified, use the chart listed in the specifications section, Group 18, to determine the correct torque value. Many of the gaskets and o-rings are manufactured from a material designed to absorb oil. These gaskets will enlarge and provide a tight seal after coming in contact with oil.
Use ONLY a recommended contact adhesive or a vegetable based oil to install these parts. Always use a capscrew of the same system, metric or U.S. Customary, the same dimension and the same grade as the capscrew removed. The use of a longer capscrew than the capscrew that is listed can result in damage to the engine.