Removal and installation of the Mazda 3 engine

Remove the battery.

Remove the battery tray.

Remove the heatsink.

Drain the oil

Remove the power steering oil pump with oil filter without disconnecting the hose and place it so that it does not interfere.

Remove the air conditioning compressor without disconnecting the pipes.

Place the air conditioning compressor out of the way. Use a wire or rope to fix the compressor.

Remove the combined shaft from the intermediate drive shaft.

Remove the air filter, intake duct, accelerator cable with bracket and vacuum hose.

Remove the automatic transmission filter and selector cable. (models with automatic transmission).

Remove the vacuum hose and heater hose.

Remove the clutch slave cylinder and control cable (manual transmission models).

Remove the plastic fuel hose.

Disconnect the wiring harness in the engine compartment.

Remove the front tube.

Fig. 1. Components for mounting the power unit on the car: 1 - engine support No. 1; 2 - engine support bracket No. 1; 3 - engine support bracket No. 4 and engine support No. 4; 4 - bus connection of the engine with the "mass" of the body; 5 - engine mounting bracket No. 3; 6 - engine, gearbox in the final drive

Remove the power unit (fig. 1).

Remove support #1

Fig. 2. Hanging the engine with a special tool

Suspend the engine using a special tool (Fig. 2.).

Remove the pinch bolt A from the #1 engine mount bracket side.

Fig. 3. #1 engine mount bolts

Loosen the tie bolt B on the body side until approximately three threads are visible (fig. 3)

Do not remove engine mount #1 from the vehicle (fig. 3).

Remove No. 4 engine mount bracket and No. 4 engine mount

Fig. 4. Engine Jack

Mount the engine and gearbox in the final drive assembly using an engine jack and accessory (fig. 4).

Remove the special tool (see fig. 1).

Fig. 5. Mounting the engine and gearbox on the lift

Mount the engine and gearbox in the final drive assembly using a hoist (fig. 5)

Fig. 6. Engine mount bracket #4 and engine mount #4 assembly

Remove #4 engine mount bracket and #4 engine mount assembly (fig. 6).

Installing engine mount bracket No. 3

Fig. 7. Threaded (welded) stud of engine mount bracket #3: 1 - stud

Tighten the threaded (welding) stud of the engine support bracket No. 3 with a tightening torque of 7–13 Nm (Fig. 7)

Fig. 8. How to tighten the #3 engine mount bolt and nut

Tighten the #3 engine mount bracket bolt and nut in the order shown in Figure 8

Installing No. 4 engine mount bracket and No. 4 engine mount

Fig. 9. The order is tightened #4 engine mount bracket and #4 engine mount bolt and nut

Tighten the #4 engine mount bracket and #4 engine mount bracket bolt and nut in the order shown in Figure 9.

Mount the engine and gearbox in the final drive assembly using an engine jack and accessory (see fig. 4)

Fig. 10.motor jack

Remove the lift and secure the engine and gearbox to the final drive using the special tool (see fig. 10)

Installing support #1

Tighten bolt A of the engine support bracket to a torque of 93.1-116.6 Nm.

Tighten the bolt B of the engine mount bracket with a tightening torque of 93.1-116.6 Nm.

Tighten the tie bolt of the engine support bracket No. 1 to a tightening torque of 85.3–116.6 Nm.

Fig. 11. Bolts of fastening of support No. 1

Tighten the tie bolt (B) on the body with a tightening torque of 93.1 - 116.6 Nm (fig. 11).

Install other components in the reverse order of removal.

Start the engine.

Inspect for engine oil, coolant, transmission oil and fuel leaks.

Check ignition timing, idle speed and mixture.

Perform a test drive.