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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 3 (2003 release)

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Mazda 3
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Mazda
3
Operation and maintenance of car
Engine
General description new engines models L8, LF, L3
The mechanical part of engines
Variable valve timing mechanism
Lubrication system
Overview
Oil pump
Sump
Oil filter
The valve nozzle maslorazbryzgivayuschego
Job valve nozzles maslorazbryzgivayuschih
Cooling system
Fuel system
Exhaust and Emission
Electric motors
The mechanical part of engines
Appendix 1
Annex 2
Appendix 3
Engine Z6 - mechanical part
Lubrication system
Cooling system
Intake system
Fuel system
Exhaust and Emission
Ignition system
Control system
Tables
Transmission
Chassis
Steering Gear
Brakes
Onboard electric
Body
 


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Overview



The lubrication system is operated under pressure, the oil passes through the oil filter. At Mazda engines installed an environmentally friendly oil filter with replaceable filter element. Lubrication system - with full-flow oil purification and supply of pressurized oil to the main moving parts and engine parts. The system consists of the oil sump, gear oil pump suction tubes, mesh full flow oil filter, oil pressure and oil valves. The oil pump draws oil from the sump and feeds it to the oil filter. On the discharge side of the oil pump relief valve is located. At too high an oil pressure valve opens and part of the oil flows back into the sump. Through the middle of the oil filter cartridge clean oil enters the main oil highway. When blockage of the filter bypass valve disposed in the housing of the oil filter, oil supplies are not filtered directly into the main oil highway. The pipe of the oil filter is a check valve that prevents the devastation of oil channels and hydraulic valve lifters engine. From the main oil line depart channels for lubrication of the bearings of the crankshaft. Through inclined holes in the crankshaft oil is supplied to the connecting rod bearings, and then sprayed onto the piston pins and cylinders. Simultaneously uplink oil is fed into the cylinder head and lubricates the bearings of a camshaft and the work of the hydraulic tappets.
Pallet sump is made of a multilayer steel with a high damping factor. On the LF engine and L3 is also installed with a water cooler masloohlazhdeniem.


Operating system components grease car Mazda 3
Fig. 2.38. Operating system components grease car Mazda 3: 1 - a spring chain tensioner; 2 - chain tensioner; 3 - the oil pump; 4 - chain guide; 5 - chain oil pump; 6 - an asterisk of the oil pump; 7 - the oil pan; 8 - oil strainer; 9 - a lining; 10 - maslorazbryzgivayuschego valve nozzle; 11 - oil filter adapter; 12 - the gauge of pressure of oil; 13 - the oil filter; 14 - a cover of the oil filter; 15 - drain plug of the oil filter; 16 - a sealing ring; 17 - Engine Model LF, and L3; 18 - oil cooler


ATTENTION
On vehicles equipped with engines with a catalytic converter, it must be ensured that the oil level on the dipstick oil level was above the level of the maximum. If the car with a catalytic converter was flooded with too much oil, the excess part of it should be removed from the crankcase through the suction or discharge (special vacuum pump), otherwise unburnt oil will penetrate into the exhaust system and can destroy the catalytic converter.

Engine lubrication system L8 or LF
Fig. 2.39. Engine oil and L8 LF: 1 - camshaft; 2 - cylinder head; 3 - the block of cylinders; 4 - maslorazbryzgivayuschego valve nozzle; 5 - the crankshaft; 6 - the oil filter; 7 - the oil filter bypass valve; 8 - the oil pump; 9 - oil strainer; 10 - oil pan; 11 - Drain the oil; 12 - chain tensioner; 13 - the engine of the model LF; 14 - oil cooler; 15 - to the oil filter; 16 - from the oil pump; 17 - the gauge of pressure of oil; 18 - hole; 19 - the piston; 20 - main bearing; 21 - the bearing of the crankshaft, connecting rod bearing; 22 - a safety valve; 23 - vertical projection; 24 - side view


Engine lubrication system L3
Fig. 2.40. Engine lubrication system L3: 1 - camshaft; 2 - cylinder head; 3 - the block of cylinders; 4 - maslorazbryzgivayuschego valve nozzle; 5 - the crankshaft; 6 - the oil filter; 7 - the oil filter bypass valve; 8 - the oil pump; 9 - oil strainer; 10 - oil pan; 11 - Drain the oil; 12 - chain tensioner; 13 - oil cooler; 14 - the gauge of pressure of oil; 15 - hole; 16 - the piston; 17 - main bearing; 18 - the bearing of the crankshaft, connecting rod bearing; 19 - a safety valve; 20 - vertical projection; 21 - side view; 22 - balancer shaft; 23 - the oil control valve (OCV); 24 - actuator variable valve timing; 25 - Oil filter (inside the front cover of the engine)





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