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Тойота РАВ4-Toyota RAV4
1. Car operation
2. Maintenance service
3. Engines
   Engine repair 3S-FE without its removal from the car
   Engine repair 1AZ-FE without its removal from the car
      The general data
      Specifications
      Installation of the piston of the first cylinder in the top dead point (ВМТ)
      Cover of a head of the block of cylinders
      System of change of phases timing (VVT — Variable Valve Timing)
      Drive chain газораспределительного the mechanism and an asterisk
      Camshafts and pushers of valves
      Inlet collector
      Final collector
      Head of the block of cylinders
      Pulley/gasitel of fluctuations
      Forward sealing ring of a cranked shaft
      The oil pallet
      The oil pump
      Flywheel / a drive plate
      Back sealing ring of a cranked shaft
      Support of the power unit
   Diagnostics and preparation of the engine for major repairs
4. Cooling and air-conditioning systems
5. Fuel system and system of release of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
8. Coupling
9. A transmission
10. A kardannyj shaft and shaft of a drive of driving wheels
11. Brake system
12. A suspension bracket
13. A steering and a running gear
14. A body
15. An electric equipment
Electric equipment schemes




Toyota RAV4>> Engines>> Engine repair 1AZ-FE without its removal from the car>> Drive chain газораспределительного the mechanism and an asterisk
Removal
Chain removal spend on the cold engine in a following order:
– Switch off ignition and disconnect a wire of "weight" from the storage battery;
– Remove a belt of a drive of hinged units;
– Remove the generator;
– Uncover heads of the block of cylinders;
– At presence remove block ABS;
– Tighten a lay brake and block back wheels an emphasis;
loosen the nuts of fastening of the right forward wheel. Lift a forward part of the car and establish on support. Remove the right forward wheel and грязезащитный a guard of an arch of the right forward wheel;
– Merge cooling liquid;
– Turn out bolts, remove and take aside the pump of the amplifier of a steering with the hoses connected to it. A soft wire fix the pump on a body;

Fig. 3.52. Label combination on гасителе fluctuations with sign ВМТ or 0 on a forward cover of a chain


– Establish the piston of the first cylinder in ВМТ in a compression step, thus the label on гасителе fluctuations should be combined with sign ВМТ or 0 on a forward cover of a chain (fig. 3.52 see), and labels on asterisks of camshafts should be combined with labels on covers of bearings of camshafts (fig. 3.55);

Fig. 3.55. Combination of labels on asterisks of camshafts with labels on covers of bearings of camshafts (on distributive the knot of a pulley / of a drive of system VVT is visible to a shaft of inlet valves)


– Remove from a cranked shaft a pulley / гаситель fluctuations, thus do not turn a cranked shaft. If has occurred проворачивание a cranked shaft, return it in position corresponding to installation of the piston of the first cylinder in ВМТ in a compression step;
– A jack, through wooden брусок established under the oil pallet, lift the engine so that its weight was perceived by a jack.
– Remove the left support of the engine;

Fig. 3.56. An arrangement of bolts of fastening of the mechanism of a tension of a chain


– Remove the mechanism of a tension of a chain (fig. 3.56) and the gauge of an angle of rotation of a cranked shaft from a forward cover of a chain. Turn out a bolt of fastening of a plait of wires of the gauge of an angle of rotation of a cranked shaft to a chain cover;
– Remove the oil pallet;
– Turn out bolts and remove the holder of a plait of wires from a chain cover;

Fig. 3.57. An arrangement of nuts of fastening натяжителя chains


– Turn out nuts (fig. 3.57) and remove натяжитель chains from the back party of a cover;

Fig. 3.58. An arrangement of the top bolts of fastening of a cover of a chain


Fig. 3.59. An arrangement of the bottom bolts of fastening of a cover of a chain


– Turn out bolts (fig. 3.58, 3.59) and mount separate, and uncover chains the block of cylinders. Note an arrangement of bolts as they have different length;
– Remove the gauge of an angle of rotation of a cranked shaft;

Fig. 3.60. Directing and натяжитель chains: 1 – шарнирный a bolt; 2 – натяжитель chains; 3 – bolts of fastening of a directing chain; 4 – motionless directing to a chain; 5 – bottom directing to a chain


– Turn out bolts 1,3 (fig. 3.60) and remove натяжитель 2 and bottom directing to a chain 5;
– Remove a chain from asterisks of camshafts and an asterisk together with a chain from a cranked shaft. If the chain is repeatedly established, a chalk, a marker or a paint note the forward party of a chain. If at installation the chain rotates in other party, in connection with available development of a chain, deterioration of elements of the mechanism timing will increase and the noise created by a chain will increase;
– Remove motionless directing to a chain 4;

Fig. 3.61. Use of keys for deduction of a camshaft from проворачивания and отворачивания a bolt of fastening of an asterisk


– Keeping a wrench, a camshaft from проворачивания for шестигранник, turn out a bolt of fastening and remove an asterisk from a camshaft (fig. 3.61).

       THE PREVENTION
On distributive to a shaft of inlet valves except an asterisk the knot of a pulley / of a drive of system of change of phases timing (VVT) is established. At removal of an asterisk of a camshaft of inlet valves, turn out only the central bolt of fastening of a pulley / of a drive of system of change of phases timing. Do not turn out 4 bolts of fastening of a pulley / of a drive of system of change of phases timing to an asterisk.

Check

Fig. 3.62. Distance measurement between chain links: Х = 122,6 mm for a drive chain газораспределительного the mechanism between 16 rollers or 8 links of a chain; Х = 52,4 mm for a chain of a drive of the oil pump between 8 rollers or 4 links of a chain


Visual survey check up a condition of details on absence of deterioration and damages. Check up chain links on absence of cracks, deterioration of rollers and lateral plates. Check up a condition of teeths of asterisks which should be symmetric. Pull a chain and measure distance between 8 links of a chain which should be equal 122,6 mm (fig. 3.62). Check on several sites of a chain. If the chain was extended, replace in the complete set a chain and asterisks.

Fig. 3.63. Measurement of diameter of an asterisk on chain rollers


Wrap up each asterisk a chain and measure diameter of an asterisk on chain rollers (fig. 3.63). If the received size exceeds the minimum diameter of a chain, replace in the complete set a chain and asterisks.

Fig. 3.64. Places of measurement of depth of dredging on directing to a chain: Х = no more than 1,0 mm


Fig. 3.95. Combination of colour labels on a chain with labels on asterisks


Check up directing chains on absence of excessive deterioration. Keep in mind that insignificant deterioration directing is a normal phenomenon. Depth of dredging on directing to a chain should be no more than 1,0 mm (fig. 3.64). In the presence of excessive deterioration check up a lubricant aperture of a directing chain on the forward party of the block of cylinders on absence of pollution and a contamination (fig. 3.95 see).
Installation
Installation make in a following order:
1) a scraper remove the rests of old hermetic with привалочных surfaces of a cover of a chain and a head and the block of cylinders;
2) be convinced that camshafts are turned by adjusting pins upwards, in position 12 ч, to an invention establish both asterisks, combining an aperture for a pin from an underside of an asterisk with a camshaft pin. Put on a carving of bolts of fastening of asterisks контровочный the structure interfering their self-unscrewing, and screw bolts by hand. Keeping a wrench, a camshaft from проворачивания for шестигранник, tighten a bolt of fastening of an asterisk the moment 54 Nm (fig. 3.61 see);
3) if necessary tighten camshafts in position at which labels on asterisks of camshafts will be combined with labels on covers of bearings of camshafts (see fig. 3.55);
4) if a cranked shaft turned from position ВМТ, turn it in position at which шпоночный the groove will not be directed upwards, to position 12 ч;
5) establish motionless directing to a chain 4 (fig. 3.60 see);
6) put on a chain on an asterisk of a cranked shaft, thus combine a colour label №1 on a chain with a label on an asterisk. Establish an asterisk with the chain established on it on a cranked shaft, then establish bottom directing to a chain;

       THE PREVENTION
On a chain is available three colour labels. The label №1 is located on большем distance from two other labels which are located is close to each other.


Fig. 3.65. Combination of colour labels on a chain with labels on asterisks of camshafts at chain installation


7) establish a chain on a boot of a motionless directing chain, then on an asterisk of a camshaft of final valves and, at last, on an asterisk of a camshaft of inlet valves. Check up that colour labels on a chain were combined with labels on asterisks (fig. 3.65). At chain installation exclude sagging of the right branch of a chain;

Fig. 3.66. A ledge arrangement on the tension mechanism


8) clean sagging of the left branch of a chain, establish натяжитель chains, screw шарнирный a bolt and tighten its moment 19 Nm. After installation, be convinced that the ledge on the tension mechanism (fig. 3.66) does not pass by an emphasis to a head of the block of cylinders;
9) repeatedly check up that the piston of the first cylinder is in ВМТ in a compression step, thus the label on гасителе fluctuations should be combined with sign ВМТ or 0 on a forward cover of a chain (fig. 3.52 see), and labels on asterisks of camshafts should be combined with labels on covers of bearings of camshafts (fig. 3.55 see);
10) establish the gauge of an angle of rotation of a cranked shaft and a ring label F on which should be directed outside;

Fig. 3.67. Places (1) drawings of a layer of hermetic on привалочные surfaces of a cover of a chain


11) put a layer of hermetic RTV in diameter of 3-4 mm on привалочные to a surface of a cover of a chain 1 (fig. 3.67). Also put a hermetic small amount on junctions of a head and the block of cylinders. Establish a cover on the engine and fix bolts, having established them in initial positions. Gradually, for some passes, tighten bolts the demanded moment;
12) establish плунжер the mechanism of a tension of a chain in a starting position as follows:

Fig. 3.68. A raising of the doggie of a ratchet and moving плунжера the mechanism of a tension of a chain in a starting position (inside)


– Lift the doggie of a ratchet and move плунжер inside while it does not reach the bottom limit (fig. 3.68);
– Hook on a hook on the case of the mechanism of a tension for a pin on плунжере therefore плунжер will be fastening in a starting position;
13) grease with engine oil sealing rings плунжера the mechanism of a tension and establish it in a chain cover;
14) establish a pulley/gasitel of fluctuations on a cranked shaft;

Fig. 3.69. For hook clearing on the case of the mechanism from a pin on плунжере, it is necessary to turn slightly a cranked shaft of the engine counter-clockwise: 1 – a hook; 2 – a pin


15) slightly turn a cranked shaft of the engine counter-clockwise to establish a chain tension. Thus the hook 1 (fig. 3.69) on the case of the mechanism of a tension should be released from a pin 2 on плунжере therefore плунжер will spend a chain tension. If плунжер it was not released independently, wring out натяжитель chains and release a pin on плунжере a screw-driver edge;
16) turn a cranked shaft of the engine clockwise on some turns and establish the piston of the first cylinder in ВМТ in a compression step. Check up that the label on гасителе fluctuations is combined with sign ВМТ or 0 on a forward cover of a chain (fig. 3.52 see), and labels on asterisks of camshafts are combined with labels on covers of bearings of camshafts (fig. 3.55 see).
The further installation is spent to sequences, return to removal.