Tojota Lend Kruzer, Amazon, Leksus LX470
+ Identification numbers of the car
+ Controls and receptions of safe operation of the car
+ Options and car routine maintenance
- The engine
+ Typical procedures of service of engines
- Procedures of service of the petrol engine
Removal and installation of covers of heads of cylinders
Removal and installation of the inlet pipeline
Removal and installation of final collectors
Removal, check of a condition and installation газораспределительного a belt and cogwheels of drive ГРМ
Replacement of a forward epiploon (ов) a cranked shaft / of camshafts
Replacement of a back epiploon of a cranked shaft
Removal and installation of camshafts and pushers of valves
Removal and installation of heads of cylinders
Removal and pallet installation картера the engine
Removal, check of a condition and installation of the oil pump
Removal and installation приводного a disk
Check of a condition and replacement of support of an engine mount
+ Procedures of service of the diesel engine
+ Systems of cooling of the engine, salon and air conditioning heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Control systems of the engine and decrease in toxicity of the fulfilled gases
+ Gear change box
+ Transmissionnaja line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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Removal and installation of camshafts and pushers of valves
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Before to start procedure performance, prepare two bolts 6 * 10 mm in length 16 – 20 mm. |
Components клапанного the mechanism
Removal
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1. Remove covers of heads of cylinders (see Has undressed Reduction of the piston of the first cylinder in position of the top dead point (ВМТ)) and газораспределительный a belt (see Has undressed Removal, check of a condition and installation газораспределительного a belt and cogwheels of drive ГРМ) (address to an illustration above).
2. Result the piston of the first cylinder in position ВМТ of the end of a step of compression.
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3. Procedure described more low is applicable to all four camshafts. In both heads first of all the final shaft (after blocking подпружиненного a gear ring with a gear wheel), then final always acts in film. At first remove camshafts of the right head of cylinders. Check up an arrangement of an adjusting label on a pulley of a cranked shaft on one line with its bolt and an intermediate roller (address to an accompanying illustration).
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External shaft in both heads are final, internal – inlet. |
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4. Combine service apertures, developing рожковым a key a camshaft for it шестигранную a part. Block подпружиненное a gear ring on a conducted gear wheel by means of a service bolt, the bolt is passed in an aperture in a ring and rolled in a reception carving aperture in a gear wheel (address to paragraph 3 illustration).
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Whereas axial люфт camshafts it is minimum, try to keep constantly at extraction assemblages in horizontal position, the slightest warp can lead to occurrence of cracks in a head around an arrangement of gear wheels. Before to take a shaft, make sure that the effort developed торсионной by a spring, is completely compensated by means of a service bolt. |
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5. Establish a label on a camshaft gear wheel approximately in 10 ° (address to paragraph 3 illustration). Operating strictly in a certain order (address to an accompanying illustration), in stages (on 1/4 turns for the approach) ослабьте bolts of fastening of covers of bearings of camshafts so that there was a possibility of a reversing of bolts manually.
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For fastening of covers bolts of the different sizes are used – do not mix them at installation. |
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6. Remove маслопровод, covers of bearings and it is cautious, trying not to warp, take camshafts from a head of cylinders.
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7. Operating in a similar manner, take camshafts from the second head of cylinders taking into account that dot labels on camshafts should be combined (address to an accompanying illustration). |
8. Put components removed from the engine strictly in the organised manner guaranteeing possibility of their installation at assemblage on the former places.
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At the given stage adjusting washers of pushers of valves which at assemblage also should be established strictly on the former places can be taken by means of a magnet. |
9. For dismantle of assemblage of a gear wheel clamp a final camshaft for лыски in a vice with soft sponges.
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10. With the help штифтового a key develop a gear ring clockwise so that to remove effort developed by a spring from a service bolt (address to an accompanying illustration), then turn out last, having released a ring.
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At absence near at hand штифтового a key pass in a free aperture in a cogwheel the second service bolt, and, using it as a support, develop a wheel by means of a screw-driver. |
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11. By means of special flat-nose pliers remove fixing gear wheel assemblage a lock ring (address to an accompanying illustration). |
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12. Remove from a shaft pin a wavy washer, a gear ring and торсионную a spring (address to an accompanying illustration). Track, that components removed from the left shaft developed separately from components from the right. |
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Check
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1. Visually estimate a condition of working surfaces of cams and подшипниковых necks of shaft. Pay attention to scratches, cavities, etc. special attention it is necessary to give overheat traces to a condition of a layer of superficial training of cams. By means of a micrometer measure height of cams.
2. By a micrometer measure diameters of each of подшипниковых necks of both camshafts. Measurement make in the several points carried as on length of a neck (about revealing конусности), and on forming everyone sections (about ovality revealing). Write down the received results. Measure internal diameter of bearings of a camshaft нутромером and write down results of measurements. Calculate a backlash, subtracting value of diameter of a neck from value of diameter of its bearing.
3. Establish a camshaft on prisms and measure with the help циферблатного a measuring instrument palpation of an average neck. Compare results of checks to requirements of Specifications, in case of need replace the worn out shaft. |
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Installation
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1. Mount assemblage of a gear wheel of a final shaft, having established into place торсионную a spring, a gear ring and a wavy washer. Fix assemblage by a lock ring, having tracked reliability of landing of the last.
2. Clamp shaft assemblage in a vice with soft sponges.
3. Pass a service bolt in a smooth aperture in a gear ring, by means of a screw-driver develop a ring clockwise so that there was a combination of apertures, and screw the second bolt in a gear wheel, strongly having pulled together with it assemblage. Take from a ring the first service bolt. Similarly block assemblage of a gear wheel of the second shaft.
4. Remove from segment stoppers old hermetic. Put hermetic in flutes of stoppers and establish them in heads of cylinders. At first establish the right camshafts.
5. Grease pushers молибденсодержащей with greasing and plant them strictly on the former places in heads of cylinders. Track, that each of pushers has been completed by the former adjusting washer.
6. Grease cams, подшипниковые necks and persistent surfaces of a gear wheel of a shaft молибденсодержащей with greasing
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7. Lay shaft on the regular places. Turning a camshaft рожковым a key, establish a dot label of a shaft at an angle approximately 10 ° over a horizontal. Remove old hermetic from a forward cover of the bearing and put a strip in width about 1.5 mm of fresh hermetic FIPG on the specified places (address to an accompanying illustration). Do not suppose hermetic hit in cover flutes. |
8. Establish a cover before hermetic will fall asleep. Installation of a forward cover defines a persistent backlash of a camshaft.
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9. Establish other covers strictly on the former places (according to digital marks), track, that стрелочные labels have been developed by edges towards drive ГРМ (address to an accompanying illustration). |
10. Establish a new epiploon of a camshaft.
11. Grease carving parts of bolts D and E. Operating in strictly certain order (address to paragraph 9 illustration), in stages (on 1/4 turns for the approach) tighten in some approaches bolts of fastening of covers with demanded effort.
12. Turn out a service bolt.
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13. Operating in a similar manner, establish camshafts of the left head of cylinders taking into account that dot labels on camshafts should be combined (address to an accompanying illustration): installation of forward covers of bearings. |
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13. Installation of other covers of bearings (address to an accompanying illustration). |
14. Check up клапанные backlashes (see the Head of Adjustment and car routine maintenance)
15. Establish газораспределительный a belt (see Has undressed Removal, check of a condition and installation газораспределительного a belt and cogwheels of drive ГРМ).
16. Before installation of covers of heads of cylinders remove from them and from segment stoppers old hermetic. Put on a joint place клапанной covers with a cover of the bearing №1 camshafts new hermetic. Put hermetic in the central flute of segment stoppers and establish them in a head of cylinders. Establish new linings of covers of heads of cylinders, check up a condition of sealants under bolts of fastening of covers and establish covers of heads of cylinders.
17. The further installation is made in an order, the return to an order of dismantle of components.
18. Start the engine and check up it on presence of signs of development of leaks. |
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