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Subaru Forester1997-2005 of releaseRepair and car operation |
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Subaru Forester + Cars Subaru Forester + The maintenance instruction + Routine maintenance - The engine Design features and principle of functioning of the engine, - the general information and adjustment клапанных backlashes Major repairs and engine service - the general information Check of pressure of oil Check компрессионного pressure in cylinders Diagnostics of a condition of the engine with vacuum gauge application Removal of the power unit from the car - preparation and safety measures Removal and engine installation Alternative variants of schemes of regenerative repair of the engine Order of dismantling of the engine by its preparation for major repairs Dismantling of drive ГРМ, - removal, check of a condition and installation of components Removal, dismantling, check, assemblage and axis installation коромысел, - engines SOHC Removal, check of a condition and installation of camshafts Service of heads of cylinders Service of the block of cylinders Greasing system - the general information Removal, service and installation Removal, check and installation маслоохладителя - only engines DOHC Trial start and обкатка the engine after major repairs + Systems of cooling, heating + The power supply system and release + Engine electric equipment + Control systems of the engine + Gear change box + Coupling, трансмиссионная a line + Brake system + Suspension bracket and steering + Body + Onboard electric equipment 
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Design features and principle of functioning of the engine, - the general information and adjustment клапанных backlashes In the given Chapter the device and procedures of service of engines of two types is described: with one (SOHC) or two (DOHC) camshafts for each of heads of cylinders.Engines SOHC Horizontal, 4-cylinder, оппозитный 4-taktnyj the petrol engine of liquid cooling equipped 16-klapannym with the mechanism timing with one camshaft for each of heads of cylinders. The scheme of an arrangement of the basic components 4-cylinder оппозитного engine SOHC The engine has following design features: Four-cycle оппозитный the engine with a turbo-supercharging, is equipped 16-klapannym by the mechanism timing with two camshafts for each of heads of cylinders. The scheme of an arrangement of the basic components 4-cylinder оппозитного engine DOHC Hydroproof-readers клапанных backlashes are established in support одноплечих коромысел a drive of valves, instead of in коромыслах. Four camshafts (on two on each of heads) are put in action one gear belt, effort which tension is regulated automatically. Gear belt of drive ГРМ Camshafts of the left and right heads of cylinders are put in action by one gear belt. Besides, the back party of the same belt carries out a drive of the water pump. The lining scheme газораспределительного a belt on engines SOHC * The piston of the first cylinder is in position ВМТ of the end of a step of compression at combination of the given label with reciprocal риской on the block. ** The piston of 1st cylinder is in position ВМТ of 1st cylinder at combination of the given label with reciprocal риской on a cover of drive ГРМ. The lining scheme газораспределительного a belt on engines DOHC * The piston of the first cylinder is in position ВМТ of the end of a step of compression at combination of the given label with reciprocal риской on the block ** The piston of 1st cylinder is in position ВМТ of 1st cylinder at combination of the given label with reciprocal риской on a cover of drive ГРМ The belt is made of heat-resistant rubber and reinforced by a steel wearproof cord. Tension adjustment газораспределительного a belt is carried out automatically by means of hydraulic натяжителя. The necessary effort of a tension газораспределительного a belt is supported by a rod automatic натяжителя, wringing out a tension roller. The axis of turn of a roller does not coincide with an axis of its rotation, the twisting moment put to a roller at the expense of effort, developed by the basic spring placed in assemblage натяжителя is as a result created. Design automatic hydraulic натяжителя газораспределительного a belt Under the influence of the effort developed by the basic spring, the rod натяжителя moves to the left, thanks to what hydraulic pressure (silicone greasing filling the device constantly is under the pressure created by the drawing in spring, located from a tank outer side натяжителя) wrings out the ball of the valve and greasing arrives in the working chamber натяжителя. Deployment of a tension roller proceeds until effort of the reaction put from outside of a tape of a belt, will not counterbalance the effort developed by the basic spring натяжителя. Sharp increase of effort of reaction from outside a belt can lead to an excessive tension of the last in order to avoid what the greasing small amount is squeezed out from the working chamber натяжителя in a special receiver through a backlash rod landing in the assemblage case. Greasing will be pumped over in a receiver until the equilibrium state (between effort of reaction of a belt and total effort of the basic spring and hydraulic pressure in the working chamber) will be reached. The gear belt is located under a cover of drive ГРМ. The cover is made of heat resisting shock-resistant plastic, a surface of a joint of a casing with the block of cylinders герметизируется by means of a rubber insert that prevents belt pollution, and also allows to lower level of noise and the vibrations published by the engine at work. The labels are put on a forward surface of a cover of drive ГРМ, allowing to carry out check of correctness of installation of a corner of an advancing of ignition. The mechanism of a drive of valves Engines SOHC In axial apertures коромысел a drive of valves запрессованы wearproof plugs, and in the surfaces co-operating with cams of a camshaft are filled in special loose leaves from металлокерамики. The working ends коромысел are equipped by hydraulic proof-readers клапанных the backlashes, supporting zero values of the last. Application of hydroproof-readers allows in essential measure to lower level of noise made by the engine necessity for periodic adjustment клапанного the mechanism, besides, disappears. The installation scheme коромысел a drive of valves on engines SOHC Коромысла final valves remind under the form letter Y and influence both inlet valves of the cylinders simultaneously. In an axis коромысел it is provided internal маслоток, equipped built in редукционным by the valve. Engines DOHC The scheme of functioning of the mechanism of a drive of valves on engines DOHC
In assemblage engines DOHC коромысел with axes are absent, - camshaft cams influence valves through одноплечие levers in which support hydroproof-readers клапанных backlashes are built in. The klapannyj mechanism, - the general information, adjustment клапанных backlashes The general information Principle of functioning of hydroproof-readers клапанных backlashes
Some engines can be equipped by hydraulic proof-readers клапанных backlashes. Assemblages of hydroproof-readers are established in the working ends коромысел a drive of each of valves (engines SOHC), or (engines DOHC) are located in support одноплечих drivers levers. On models without hydroproof-readers adjustment клапанных backlashes should be made on a regular basis according to the routine maintenance sc | ||||||||