Repair of engines model «B» of the car Mazda 323 (BF)

Main technical characteristics of the engine
General information The engine is four-stroke, four-cylinder, single-row. The engine is located in the front part of the body across the vehicle axis. Main technical...

Technical characteristics of the cylinder block
The cylinder block is cast from cast iron and is one piece with the cylinders. An aluminum holder is located at the rear of the cylinder block. The front part of the...

Technical characteristics of the crank mechanism
Crankshaft The crankshaft has five bearings, with five counterweights. It is possible to regrind the crankshaft journals during repairs with a diameter reduction of...

Technical characteristics of the valve timing mechanism
Engines V3, V5, V6 The engine uses a valve timing mechanism with an overhead camshaft, the drive of which is carried out by a toothed belt from a toothed pulley...

Tightening torques of main threaded connections, kgf m
Cylinder head mounting bolts: 7.7-8.3. Bolts for fastening bearing housings of camshafts of engines with turbochargers: 1.15-1.45. Camshaft timing pulley mounting bolt:...

Adjusting clearances in the valve drive mechanism on the B6 engine
Note: On B3, B5 and B6 EGI engines, valve clearances are automatically compensated by hydraulic tappets. Warm up the engine. Remove the cylinder head cover. Turning the...

Timing mechanism parts
Details of the valve timing mechanism of engines B3, B5 and B6: 1 - crankshaft; 2 - toothed pulley of the crankshaft; 3 - toothed belt; 4 - toothed pulley of the...

Removal and installation the camshaft drive belt
Removal The camshaft drive belt must be removed in the following cases: when removing the cylinder head, oil pump and water pump. Disconnect the wire from the negative...

Cylinder head parts
Cylinder head parts for B3, B5 and B6 engines: 1 - cylinder head; 2 - cylinder head cover; 3 - Front timing belt cover; 4 - oil deflector; 5 - filler cap; 6 - cylinder...

Removal the cylinder head
Remove the timing belt. Drain the coolant. On vehicles with the B6 EGI engine, install the upper suspension bracket and disconnect the hoist cable from the engine. On...

Installing the cylinder head
Make sure the cylinder head and block are clean, the piston of the 1st cylinder is set to TDC and the timing marks of the valve timing mechanism are aligned. Install the...

Repair of cylinder head of engines B3, B5, B6
Disassembly Loosen the camshaft toothed pulley mounting bolt, holding the shaft from turning with a wrench. Remove the camshaft timing pulley. Remove the rocker arm oil...

Repair of cylinder head of B6 EGI engines
Disassembly Loosen the camshaft toothed pulley mounting bolts, locking each of them in turn with a wrench in the space between the cams of the 1st and 2nd cylinders....

Powertrain suspension
Powertrain suspension: A - engines B3, B5, B6; B - B6 EGI engine 1 - cross member of the power unit suspension; 2 - rear suspension support; 3 - rear suspension bracket;...

Removal and installation of the power unit
Disconnect the wire from the negative terminal of the battery. Remove the engine hood. Remove the battery and its mounting bracket. Place the car on a lift and raise it....

Cylinder Block Parts
Cylinder block details: 1 - cylinder block; 2 - oil pan; 3 - front cover of the cylinder block assembled with the oil pump; 4 - Crankshaft rear oil seal holder; 5 -...

Disassembling the engine
Disconnect the gearbox from the engine. Remove the intake and exhaust manifolds, pipes, generator, gearbox booster, and ignition distributor from the engine. Place the...

Crank mechanism parts
Crank mechanism parts: 1 - crankshaft; 2 - flywheel; 3 - toothed pulley of the crankshaft; 4 - toothed belt protective cover; 5 - crankshaft pulley; 6 - crankshaft...

Engine assembly
Checking the technical condition Clean all parts thoroughly. Wash the mating surfaces of the parts with solvent. Never clean the mating surfaces with sharp objects or...

Model «B» engine layout
Model "B" engine layout

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