Description of the lubrication system

Description of the lubrication system
In these engines use a system subject ¬ lubrication with full-flow oil purification ¬ Coy and oil flow under pressure to main ¬ leniem moving and de ¬ talyam nodes engine. The lubrication system includes: oil pan, oil pump, oil filter, and different elements, which provide feed-rye oil to various moving parts ¬ gatelya motion. The oil from the pan through mass lopriemnik oil pump stoop down ¬ melts into the oil filter. Part of the oil after an oil pump is sentto the oil cooler. After passing through the oil filter pa ¬ portion of the oil through various channels in the cylinder block and is fed through the holes in the crankshaft bearing co-lenchatogo shaft. According to the drilling shaft ¬ lenchatom oil supplied to the sha ¬ tunnym bearing crankshaft va ¬ la. Lubrication of cylinder walls and bottom of the piston (except motor 4A-dE) is carried out mainly by spraying. For sma ¬ zyvaniya piston pin in the piston rod head ¬ howl in the sleeve and piston pin ¬ nevogo provides spe ¬ Alno hole.
Part of the oil after passing through the mass filter lyanogo drilling in block-ke cylinder goes into the cylinder head to lubricate:
• driven gear shaft BOXIES intake valves (except 4a-dE);
• supporting the necks of the camshaft;
• cams;
• valve lifters and valve stems;
• pinion shaft BOXIES exhaust valves (except 4a-dE).
After performing its functions under the oil gravity
(Gravity) is returned to the pan. To control the oil level on one side of the oil pump housing is installed meter-ny probe.
Crankcase 4A dE in of the ground is similar to the lubrication system of engines 4A-F, 5A-F, 4A-FE, 5A-FE and 7A-FE. It differs from the lubrication system of these engines are connected:
• the lack of engine 4A dE clock distribution gear shafts predelitelnyh intake and exhaust valves, and therefore no need for oil supply to these sites of friction;
• Forced periodic (pulsating) oil flow to the bottom of the piston and the cylinder walls through the respective ¬ sponding valves and nozzles
Oil pump oil pump through maslopriem-nick takes oil from the pan motor ¬ Chairpersons and delivers it under pressure to various sites of friction. Maslopri-receiver with a screen filter located in front of assumed ¬ w ¬ inlet lyanogo pump. Itself refers to the oil pump pumps trohoidnogo of type. Inside it are master and slave rotors (gears) with internal gearing ¬ rennim that physicians ¬ schayutsya in one direction. Since the on ¬ master and slave axis po ¬ tori (gears) are shifted relative to each other's respect ¬, the space between the two lobes varies as they rotate. The oil is sucked into the pump when the space between the ro ¬ tors expands and forced the space between the rotors is shrinking.
Oil pressure regulator (reducing valve)
Lubrication system
At high speeds of quantity of oil supplied to mass lonasosom, excessive when compared with the quantity required for the lubrication of the rubbing pairs. Regu ¬ torus oil pressure (relief valve) prevents excessive oil supply. At low speeds the regulator valve closes by spring-ne repusknoy (bypass) channel. But at high speeds the pressure ¬ tion of oil rises sharply, the oil pressure overcomes the force amplification ¬ Leah springs, and the control valve is opened. Excessive oil Th ¬ cut valve returns to the pan.
Oil filter
Oil filter - full-flow type with replaceable paper filter-regulating element. The particles of metal ¬ la (wear debris), dirt particles in the air, the particles in-gara and other types of contaminants can get into the oil during its use-use, leading to an increase in engine wear or salinization, acceleration (a narrowing of channels) maslopro-vodov, preventing the circulation of mass-la. The oil filter is installed in an oil ¬ ny highway permits ¬ lyaet hold these particles during the passage of oil through it. The filter is installed on the external value of the Rhone-engine, which allows comparatively easy to replace filter-regulating element. Before the filter is installed following elements rewritten SKNOU valve which opens when pressure upstream of the filter that arise in the event of clogging the filter element contaminants. Rewritten SKNOU valve opens when the si ¬ la the oil pressure exceeds the spring force the valve. In this case, the oil passes through the bypass (bypass) channel, bypassing the oil filter, and goes straight to the main oil line engine-shipment.
Check oil pressure
1. Check the quality of the engine weight ¬ la, visually assessing his condition: the presence of water, discoloration, contamination ¬ nenie, dilution. With poor quality ¬ ve to replace the oil.
2. Check the oil level to be between the marks "1_" and "P"
3. Remove the sensor alarm-pressure oil (4A-F, 4A-FE, 5A-F, 5A-FE and 7A-FE) or oil pressure switch (4A-4A-0E some P) and set the gauge in its place.
(4A-FE (AE92, AE95, AT171, AT180)) First remove the generator and the generator bracket, and after the mouth ¬ Novki gauge return them to the place.
4. Warm up the engine to normal operating temperature ¬ Noah.
5. Make sure the oil pressure at idle is as follows:
- At the minimum speed. not less than 29 kPa
(0.3 kgf/cm2)
- At 3000 min-1 245 - 490 kPa
(2.5 - 5.0 kgf/cm2)
6. Remove the pressure gauge and set the date ¬ snip emergency oil pressure (4A-F, 4A-FE, 5A-FE and 7A-FE) or pressure sensor ¬ leniya oil (4A-0E, some 4A-F). Apply glue such as 242 or equivalent 1.os1Ne, causing it to 2-3 on the turn ¬ recent thread.
(4A-FE (AE92, AE95, AT171, AT180)) First remove the generator and the generator bracket, and after the US-SETTING emergency oil pressure sensor, set them in place.
7. Start the engine and make sure no leakage of oil.