Mazda 3 - Cylinder Head Gasket Replacement [Z6]

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
Downloaded from https://carmanualshub.com/ - automotive repair manuals website
656
Tightening torque
6.9-10.8 N·m {70-110 kgf·cm, 61.1-95.5 in·lbf}
CYLINDER HEAD GASKET REPLACEMENT [Z6]
B3E011010271W01
Warning
• Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death
and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line
Safety Procedure". (See BEFORE SERVICE PRECAUTION.)
1. Remove the following parts:
(1) Timing chain. (See TIMING CHAIN REMOVAL/INSTALLATION [Z6].)
(2) EGR pipe and EGR valve bracket (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION
[Z6].) (See EXHAUST SYSTEM REMOVAL/INSTALLATION [Z6].) (See EGR VALVE
REMOVAL/INSTALLATION [Z6].)
(3) Front HO2S (See EXHAUST SYSTEM REMOVAL/INSTALLATION [Z6].)
(4) Accelerator cable and bracket
(5) Fuel hose and fuel injector wiring harness (See QUICK RELEASE CONNECTOR
REMOVAL/INSTALLATION.) (See FUEL INJECTOR REMOVAL/INSTALLATION [Z6].)
(6) Air hose, throttle body and intake manifold (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION [Z6].)
2. Disconnect the following parts:
(1) Rear HO2S connector
(2) Main silencer (See EXHAUST SYSTEM REMOVAL/INSTALLATION [Z6].)
(3) WU-TWC (See EXHAUST SYSTEM REMOVAL/INSTALLATION [Z6].)
(4) Upper radiator hose
(5) Heater hose
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.