5-101.bk Page 2 Friday, March 17, 2006 11:05 AM INTRODUCTION This manual is intended to assist the technician in properly overhauling MACK E7 engines. The manual is divided into nine major sections. Working on the E7 engine is not difficult, but like most present-day precision equipment, it requires proper tools and knowledge. The overhaul procedures are separated into three sections: engine disassembly, bench procedures and engine assembly. Each section contains detailed procedures that must be followed in the order specified. If a step calls for a procedure that has already been described earlier in the manual, you will be referred to the section where the original procedure appeared.
This manual covers the overhaul of an engine once it is removed from the vehicle, but also gives instructions for removing the engine from a nonspecified chassis. The new E7 is the most fuel-efficient diesel engine MACK has ever produced. This engine provides higher horsepower ratings, better fuel economy, increased durability and improved serviceability. In addition, the E7 still easily meets all applicable emissions standards. All this, coupled with the latest manufacturing techniques and equipment, makes the new E7 the highest- quality MACK engine ever made. 200600a Figure 1 — 3/4 View E7, Front, Left Externally, all E7 engine models look the same. However, Mack Trucks, Inc.
has made many major internal design changes to comply with current and future EPA emission standards. To properly identify the E7 engine model year, refer to the engine information plate and the following pages of this section for additional engine plate information. 3/4 VIEW E7 Figure 2 — 3/4 View E7, Front, Right 200333a Page 1-2 200 GENERAL INFORMATION