This manual explains the disassembly, inspection, repair, and reassembly procedures for the above-indicated engine. In order to do these procedures safely, quickly, and correctly, you must first read this manual and any other relevant service materials carefully.
Contains:
HOW TO USE THIS MANUAL
RANGE OF TOPICS
SERVICE PROCEDURE
SYMBOLS
ADVISORY MESSAGES
UNITS
FUNDAMENTAL PROCEDURES
PREPARATION OF TOOLS AND MEASURING
EQUIPMENT
SPECIAL SERVICE TOOLS
DISASSEMBLY
INSPECTION DURING REMOVAL,
DISASSEMBLY
ARRANGEMENT OF PARTS
CLEANING OF PARTS
REASSEMBLY
ADJUSTMENT
RUBBER PARTS AND TUBING
HOSE CLAMPS
TORQUE FORMULAS
VISE
ELECTRICAL SYSTEM
ELECTRICAL PARTS
CONNECTORS
NEW STANDARDS
ABBREVIATIONS
MZR is the brand name of a generation of Straight-4 engines engineered and built by the Mazda Motor Corporation between 2001 and 2011. The MZR generation includes gasoline and diesel powered engines ranging in displacements from 1.3L to 2.5L. All gasoline-powered MZRs feature an all-aluminum block construction with iron cylinder liners. The diesel MZR-CD engines use a cast-iron block (virtually identical to the Mazda F engine) and an aluminum cylinder head. There are three specific engine families within the MZR generation which include the small 1.3L to 1.6L Mazda Z-engine, the mid-sized 1.8L to 2.5L Mazda L-engine, and the 2.0L and 2.2L common-rail diesel Mazda R-engine. Each engine has its own proper engine code and for accuracy should be identified with such.
The DISI turbocharged MZR L3-VDT was on the Ward's 10 Best Engines list for 3 consecutive years for 2006, 2007 and 2008.
The Ford Motor Company owns rights to build and use the MZR generation of engines under their Duratec brand name for global service in its vehicles since 2003.
As of 2011, Mazda will discontinue development of the MZR generation of engines to be replaced by their new SkyActiv generation of engines. At this time Ford will continue to develop and manufacture variants of the Z-engine and L-engine for their Duratec and EcoBoost four-cylinder engines.
