4-cylinder car engines Mazda 626 (6)

Technical data of the four-cylinder engine
Engine Cylinder diameter - 83.06 mm Stroke - 91.95 mm Displacement - 1991 cm 3 (2.0 liters) Cylinder numbering (from the toothed belt) — 1-2-3-4 The order of operation...

General information about the repair of a four-cylinder engine
This chapter describes procedures for repairing a 4-cylinder engine without removing it from the vehicle. Information on removing and installing the engine, as well as...

Repair operations performed without removing the engine
Many major engine repairs can be performed without removing the engine from the vehicle. Before performing work, wash the engine compartment and the car body with a...

Setting pistons to top dead center (BMT)
Note. The following procedure assumes that the ignition distributor is installed correctly. If you need to set the TDC to install the distributor, the position of the...

Cylinder head cover — removal and installation
Removing 1. Disconnect the negative cable from the battery. Warning. If your vehicle is equipped with an anti-theft audio system, before disconnecting the battery. make...

Springs and valve stem seals — replacement
Note 1: Broken springs and valve stem seals can be replaced without removing the cylinder head from the engine. This operation will require a few special tools, as well...

Timing belt and sprockets — removal, inspection and installation
Removing 1. Disconnect the negative cable from the battery. Warning! If your vehicle has an anti-theft audio system, make sure you have the unlock code before...

Camshafts and tappets — removal and installation
Removing 1. Remove the cylinder head cover ( see paragraph 4 ). 2. On models of early releases before 1997, remove the ignition distributor ( see chapter 5 ). 3. Remove...

Intake manifold — removal and installation
Removing 1. Relieve pressure in the fuel system ( see chapter 4 ). 2. Disconnect the negative cable from the battery. Warning! If your car has an anti-theft audio...

Exhaust manifold — removal and installation
Attention! Allow the engine to cool completely before removing the manifold. Removing 1. Disconnect the negative cable from the battery. Warning! If your vehicle has an...

Cylinder head — removal and installation
Attention! Allow the engine to cool completely before removing the manifold. Removing 1. Relieve pressure in the fuel system ( see chapter 4 ). 2. Disconnect the...

Front crankshaft seal — replacement
1. Disconnect the negative cable from the battery. Warning! If your car has an anti-theft audio system, make sure you have the unlock code before disconnecting the...

Oil pan — removal and installation
Removing 1. Disconnect the negative cable from the battery. Warning! If your car has an anti-theft audio system, make sure you have the unlock code before disconnecting...

Oil pump — removal, inspection and installation
Removing 1. Disconnect the negative cable from the battery. Warning! If your car has an anti-theft audio system, make sure you have the unlock code before disconnecting...

Flywheel (faceplate) — removal and installation
Removing 1. Raise the vehicle and place it on jack stands. Remove transmission ( see chapter 7 ). 2. On a manual transmission model, remove the clutch basket and...

Rear crankshaft cuff — removal and installation
1. To perform this work, you must remove the transmission (see chapter 7). 2. Remove the flywheel (faceplate) ( see paragraph 14 ). 3 The old cuff can be pulled out....

Power block supports — check and replacement
Examination 1. When checking, the engine should be raised a lot to crush the load from its supports. 2. Raise the vehicle and place it on jack stands. Place a hydraulic...