Exhaust Manifold Removal/Installation - 2.3L

WARNING: This page is about a different car, the 2005 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

With the vehicle in Neutral, position it on a hoist. See LIFTING .
Disconnect the negative battery cable.
Remove the exhaust flange nuts.

Fig 1: Removing Exhaust Flange Nuts
Courtesy of MAZDA MOTORS CORP.
Remove the drive belt. See DRIVE BELT REMOVAL/INSTALLATION - 2.3L .
Drain the cooling system. See ENGINE COOLANT REPLACEMENT - 2.3L .
Disconnect the upper radiator hose and the engine reservoir hose.

Fig 2: Disconnecting Upper Radiator Hose And Engine Reservoir Hose
Courtesy of MAZDA MOTORS CORP.
Remove the A/C compressor. See A/C COMPRESSOR REMOVAL/INSTALLATION - 2.3L .
Disconnect the heater water hose.

Fig 3: Disconnecting Heater Water Hose
Courtesy of MAZDA MOTORS CORP.
Remove the oil indicator and the upper bolt for the tube assembly.

Fig 4: Removing Oil Indicator And Upper Bolt - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the lower bolt and remove the oil indicator tube assembly.

Fig 5: Removing Lower Bolt - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the bolts and the front radiator tube.

Fig 6: Removing Front Radiator Tube Bolts - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the pushpins and position the right inner fender splash shield out of the way.

Fig 7: Removing Pushpins
Courtesy of MAZDA MOTORS CORP.
Disconnect the alternator electrical connectors.

Fig 8: Disconnecting Alternator Electrical Connectors - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the lower front end accessory drive (FEAD) mounting bolts.

Fig 9: Removing Lower Front End Accessory Drive (FEAD) Mounting Bolts - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the upper mounting bolt and the FEAD assembly.

Fig 10: Removing Upper Mounting Bolt - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the two nuts and position the coolant tube out of the way.

Fig 11: Removing Coolant Tube Nuts - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Engine removed for clarity
Remove the nuts and the exhaust manifold.

Fig 12: Removing Exhaust Manifold Nuts - With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the exhaust manifold gasket.

Fig 13: Removing Exhaust Manifold Gasket
Courtesy of MAZDA MOTORS CORP.
To install, reverse the removal procedure.