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;
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Fig. 3.52. Label combination on гасителе fluctuations with sign ВМТ or 0 on a forward cover of a chain
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– 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);
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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)
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– 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;
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Fig. 3.56. An arrangement of bolts of fastening of the mechanism of a tension of a chain
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– 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;
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Fig. 3.57. An arrangement of nuts of fastening натяжителя chains
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– Turn out nuts (
fig. 3.57) and remove
натяжитель chains from the back party of a cover;
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Fig. 3.58. An arrangement of the top bolts of fastening of a cover of a chain
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Fig. 3.59. An arrangement of the bottom bolts of fastening of a cover of a chain
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– 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;
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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
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– 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;
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Fig. 3.61. Use of keys for deduction of a camshaft from проворачивания and отворачивания a bolt of fastening of an asterisk
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– 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).
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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.
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Check
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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
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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.
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Fig. 3.63. Measurement of diameter of an asterisk on chain rollers
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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.
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Fig. 3.64. Places of measurement of depth of dredging on directing to a chain: Х = no more than 1,0 mm
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Fig. 3.95. Combination of colour labels on a chain with labels on asterisks
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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;
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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.
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Fig. 3.65. Combination of colour labels on a chain with labels on asterisks of camshafts at chain installation
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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;
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Fig. 3.66. A ledge arrangement on the tension mechanism
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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;
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Fig. 3.67. Places (1) drawings of a layer of hermetic on привалочные surfaces of a cover of a chain
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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:
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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)
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– 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;
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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
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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.