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Subaru Forester1997-2005 of releaseRepair and operation of the car |
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Subaru Forester + Subaru Forester cars + Maintenance instruction + Routine maintenance - Engine Design features and the principle of functioning of the engine, - the general information and adjustment of valvate gaps Capital repairs and service of the engine - the general information Check of pressure of oil Check of compression pressure in cylinders Diagnostics of a condition of the engine with use of the vacuum gage Removal of the power unit from the car - preparation and precautionary measures Removal and installation of the engine Alternative versions of schemes of recovery repair of the engine Order of dismantling of the engine by preparation it to capital repairs Dismantling of the GRM drive, - removal, check of a state and installation of components Removal, dismantling, check, assembly and installation of an axis of yokes, - SOHC engines Removal, check of a state and installation of camshafts Service of heads of cylinders Service of the block of cylinders The lubrication system - the general information Removal, service and installation Removal, check and installation of the oil cooler - only DOHC engines Trial start and running in of the engine after capital repairs + Cooling systems, heating + Power supply system and release + Engine electric equipment + Control systems of the engine + Gear shifting box + Coupling, transmission line + Brake system + Suspension bracket and steering + Body + Onboard electric equipment |
The lubrication system - the general information Device and principle of functioningSOHC engines The oil pump of rotor type consists of the case in which internal and external gear wheels are located. Due to rotation of gear wheels supply of oil to engine knots is provided. The internal gear wheel (rotor) is accompanied directly by a pin of a bent shaft and, in turn provides the drive of an external gear wheel (rotor). The pressure is provided due to change in the course of rotation of volume of an interrotor cavity and supported at the required level by means of the reducing valve which is returning back excess of oil on an entrance of pump assembly. SOHC engine lubrication system contour
From the pump oil on the channel located in the lower part of the right semi-block comes to a full-line oil filter from where moves in the main oil gallery of the right semi-block and is distributed on internal components of the engine. Besides the block, oil under pressure moves also in heads of cylinders for greasing of components of valvate mechanisms. The amount of the arriving oil is regulated by means of the sprays installed in oil channels. In an axis of yokes of the drive of valves the reducing valves providing deduction of pressure of oil in the set limits guaranteeing serviceability of functioning of hydraulic proofreaders of valvate gaps are built in. The pallet of a case of the engine is supplied with the maslootrazhatelny plate providing stabilization of the account characteristic of the oil pump. DOHC engines Unlike SOHC engines, on these engines oil moves from the pump at first in the oil cooler and only then in the full-line filter. DOHC engine lubrication system contour From the filter oil comes to the main oil galleries of the left and right semi-blocks. The reducing valves regulating pressure in highways of heads of cylinders are located in the separate maslotoka connecting nests of hydroproofreaders of valvate gaps. Forward bearings of camshafts are oiled, arriving on the channels laid inside actually in bulk. Full-line oil filter The full-line oil filter has a non-demountable design. Design of a full-line oil filter
The filtering element is made of corrugated fibreboard, in assembly the valve is built in perepuskny. Pallet of a case and maslozabornik The pallet of a case fastens to the engine block from below, the interfaced surface is condensed with liquid sealant. Maslozabornik is equipped with the mesh filter preventing hit in the lubrication system of sawdust and other firm foreign particles. The reception knot of a maslozabornik is located in the central part of the pallet of a case. On a connecting tube oil is soaked up from the pallet in the oil pump located in the left semi-block. The Maslootrazhatelny partitions installed in the pallet and the lower part of a case of the engine serve for stabilization of level of oil, and also provide additional rigidity to the pallet. Oil pressure sensor Design of the sensor of emergency pressure of oil
The sensor of emergency pressure of oil is located in the top part of the block of cylinders. The design of the sensor is presented on an accompanying illustration. At inclusion ignition, the required rise in pressure of oil is not provided yet, the sensor diaphragm under the influence of a spring moves towards the block of cylinders and closes electric contacts of assembly therefore there is an operation of the control lamp which is built in in a combination of devices. After start of the engine when pressure of oil exceeds value of 14.7 kPa, the diaphragm of the sensor moves to the opposite side therefore contacts are disconnected and the control lamp dies away. |
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