Diesel car engines Mazda 626 (3 and 4)

General information about diesel engines
The Mazda 626 is equipped with a transversely mounted, in-line, liquid-cooled, four-cylinder diesel engine. The cylinder block is made of cast iron, the cylinder head is...

Removal and installation the timing belt/setting the valve timing of the RF engine
The valve timing must be adjusted after repair work that involved removing the timing belt or disassembling the engine. When checking the valve timing, all operations...

Removal and installation the timing belt/setting the valve timing of the RF-N engine
The valve timing must be adjusted after repair work that involved removing the timing belt or disassembling the engine. When checking the valve timing, all operations...

Diesel engine preheating system
When starting a cold engine, the autoignition temperature is not achieved by compression alone, so preheating of the fuel-air mixture is necessary. For this purpose, a...

Removal air from the fuel supply system
Air should be removed from the fuel system after it has become depressurized or when the fuel tank has been completely depleted of fuel. Make sure there is fuel in the...

Checking/replacing the fuel shut-off solenoid valve
The solenoid valve on the high-pressure fuel pump opens the fuel supply when the ignition is turned on. It should be checked if the engine does not start or continues to...

Checking and adjusting the engine crankshaft speed at idle speed
Since diesel engines do not have an ignition system, a special tachometer is required. But its purchase is not justified, as it is quite expensive. Warm up the engine to...

Fuel injectors — removal and installation
Faulty injectors can cause severe detonation in the engine cylinders and, as a result, damage to the crankshaft main bearing shells. If signs of detonation occur, let...

RF Engine Vacuum Pump — removal and installation
The vacuum pump creates the vacuum required for the brake booster to operate. It is mounted on the rear of the generator and is driven from the generator shaft via a...

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Capella 5 (1991-1997)