Model | MAZDA 323 | ||
| Notation | E1 | E3 | E5 |
| Release date, from - to | 85 — 87 | 85 — 87 | 85 — 87 |
| Working volume, cm3 | 1062 | 1285 | 1479 |
Power, / kW at rpm | 40/6000 55/6000 | 44/6000 60/6000 | 55/5500 75/5500 |
| Torque, Nm at rpm | 79/4000 | 95/3500 | 122/3200 |
| Cylinder diameter, mm | 70, 0 | 77, 0 | 77, 0 |
| Piston stroke, mm | 69, 6 | 69, 6 | 80, 0 |
| Compression ratio | 9, 2 | 9, 2 | 9, 0 |
| Carburetor / injection system | carburetor | carburetor | carburetor |
| Ignition system | TSZ | TSZ | TSZ |
| Timing gear drive | HE IS WITH | HE IS WITH | HE IS WITH |
| Number of valves | 8 | 8 | 8 |
| Fuel Oct. number of explorers. | Normal 89 | Normal 89 | Normal 89 |
| Catalyst | — | — | — |
Model | MAZDA 323 | ||
| Notation | VZ | VZ | AT 3 |
| Release date, from - to | 87 — 89 | 89 — 91 | 91 — |
| Working volume, cm3 | 1323 | 1323 | 1323 |
| Power, / kW at rpm l. s./at rpm | 44/5500 60/5500 | 49/- 67/- | 54/5500 73/5500 |
| Torque, Nm at rpm | 94/3400 | — | 105/3700 |
| Cylinder diameter, mm | 71, 0 | 71, 0 | 71, 0 |
| Piston stroke, mm | 83, 6 | 83, 6 | 83,6 |
| Compression ratio | 9, 4 | 9, 4 | 9, 4 |
| Carburetor / injection system | carburetor | injection system | injection system |
| Ignition system | TSZ | TSZ | TSZ |
| Timing gear drive | HE IS WITH | HE IS WITH | HE IS WITH |
| Number of valves | 8 | 16 | 16 |
| Fuel Oct. number of explorers. | Normal 89 1 | Normal 89 1 | Normal 89 1 |
| Catalyst | irregular | adjustable | adjustable |
Model | MAZDA 323 | ||
| Notation | AT 5 | AT 6 | AT 6 |
| Release date, from - to | 87 — 89 | 85 — 87 | 86 — 91 |
| Working volume, cm3 | 1480 | 1598 | 1898 |
| Power, / kW at rpm l. s./at rpm | 54/5500 73/5500 | 77/6000 105/6000 | 65/5300 85/5000 |
| Torque, Nm at rpm | 113/3200 | 37/4200 | 125/2500 |
| Cylinder diameter, mm | 78, 0 | 78, 0 | 78, 0 |
| Piston stroke, mm | 78.4 | 83, 6 | 83, 6 |
| Compression ratio | 9.1 | 10.5 | 9, 6 |
| Carburetor / injection system | carburetor | injection system | injection system |
| Ignition system | TSZ | TSZ 2 | TSZ 2 |
| Timing gear drive | HE IS WITH | HE IS WITH | HE IS WITH |
| Number of valves | 8 | 8 | 8 |
| Fuel Oct. number of explorers. | Normal 89 1 | Super 98 | Normal 89 1 |
| Catalyst | irregular | — | adjustable |
Model | MAZDA 323 | |||
| Notation | AT 6 | BP SOHC | BP DOHC | PN |
| Release date, from - to | 91 — | 89 — | 89 — | 86 — 90 |
| Working volume, cm3 | 1598 | 1840 | 1840 | 1720 |
| Power, / kW at rpm l. s./at rpm | 65/5300 88/5300 | 76/5300 103/5300 | 94/6500 128/6500 | 40/47004 55/47004 |
| Torque, Nm at rpm | 132/4000 | 148/4000 | 157/4500 | 106/3000 |
| Cylinder diameter, mm | 78, 0 | 83, 0 | 83, 0 | 78 |
| Piston stroke, mm | 83, 6 | 85, 0 | 85, 0 | 90 |
| Compression ratio | 9, 0 | 8, 9 | 9, 0 | 22, 0 |
| Carburetor / injection system | injection system | injection system | injection system | Distribute injection pump |
| Ignition system | EZA 3 | EZA 3 | EZA 3 | — |
| Timing gear drive | HE IS WITH | HE IS WITH | DOHC | HE IS WITH |
| Number of valves | 16 | 16 | 16 | 8 |
| Fuel Oct. number of explorers. | Normal 89 1 | Super 95 1 | Super 95 1 | diesel |
| Catalyst | adjustable | adjustable | adjustable | - |
1 - unleaded
2 - TSZ transistor ignition system
3 - EZA: electronic ignition system
4 - from '87 to '89: 42 kW (57 l. With); 1989 to 1990: 41 kW (56 l. With.)
Mazda 323 is equipped with a four-cylinder in-line water-cooled engine located across the direction of travel.
Cylinders are built into the gray cast iron block. When repairing the engine, for example, due to heavy wear or grooves on the cylinder mirror, the cylinders can be bored and ground. After this, the installation of pistons of a larger repair size is required. At the bottom of the cylinder block is a crankshaft supported by main bearings. The connecting rods are connected to the crankshaft through plain bearings. On the bottom of the cylinder block is a crankcase made of sheet metal or aluminum, which collects the engine oil necessary for lubricating and cooling the engine.
There are four designs of aluminum cylinder heads. These differences are in the location, gas distribution and number of valves, as well as in the number of camshafts.
Models with 1.7L diesel engine (engine designation PN) have a cylinder head with a single camshaft that drives 2 valves per combustion chamber via rocker arms (1 intake and 1 exhaust valves). The camshaft is driven by a toothed belt. The intake and exhaust manifolds are installed on the same side of the cylinder head.
Models with 1.1L, 1.3L and 1.5L petrol engines (designations (E1, E3, E5) have a cylinder head, the intake and exhaust ports of which are located oppositely, with one camshaft, which drives through rocker arms 2 valves per combustion chamber (1 intake and 1 exhaust valve). The camshaft is driven by a chain.
Models with 1.4L, 1.5L, 1.6L and 1.9L petrol engines (designations VZ, V5, B6 SOHC, BPE SOHC) have a cylinder head with opposite intake and exhaust manifolds with a single camshaft. The camshaft, depending on the model, drives 2 or 4 valves per combustion chamber via rocker arms (2 intake and 2 exhaust valves). The camshaft is driven by a toothed belt. Vehicles with 1.6 or 1.9 liter petrol engines (designations B6 DOHC, BP DOHC) also have a cylinder head with opposite intake and exhaust ports, but with two camshafts. They drive 4 valves per combustion chamber via poppets (2 intake and 2 exhaust valves). The camshafts are driven by a single toothed belt.
In engines with opposite inlet and outlet cylinder heads, fresh air-fuel mixture enters on one side of the head and exhaust gases are exhausted on the opposite side. Due to this arrangement, faster gas exchange and high power are provided.
The engine is lubricated by an oil pump, which is either located on the front side of the crankcase or located in the oil pan (engine E). It is driven directly from the crankshaft or through a chain. The sucked-in oil enters through holes and channels to the crankshaft and camshaft bearings, as well as to the cylinder mirror.
The water pump on VZ, V5, B6, BP and PN engines is located at the end of the cylinder block. On E engines, the water pump is located on the side of the cylinder block. The pump drive on all engines is carried out by a V-belt, which also drives the generator. One or two additional V-belts are used to drive the power steering and air conditioning. To prepare the working mixture, depending on the model, either a carburetor or an electronic fuel injection system is used, which, as a rule, does not require maintenance.
Ignition sparks are produced by a maintenance-free electronic ignition system. Depending on the model, ignition timing may need to be checked and adjusted as part of a service. The ignition distributor is located on the cylinder head and is driven directly by the camshaft.
Attention! The radiator fan may turn on spontaneously when the engine is off and the ignition is on. Due to the heat in the engine compartment, this may happen several times. When working in the engine compartment on a hot engine, you should always be aware of the possible activation of the fan. Therefore, when working in the engine compartment, the ignition should be switched off whenever possible.