2-8-12-snyatie-cepnogo-privoda-s-raspredvalov-snyatie-i-ustanovka-natyazhitelya-cepi.html
2.8.12. Removal of a chain drive from cam-shafts, removal and installation натяжителя chainsRemoval
Remove covers ГБЦ.
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THE NOTE
The subsequent description assumes that приводные chains of cam-shafts remain on the engine. If it is necessary remove приводные chains of cam-shafts in a complex, it is necessary to remove the bottom cover of a chain drive in addition.
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Remove the left and right covers driving chains.
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Fig. 2.44. Bolts of an exhaust pipe of an independent additional heater
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On cars with an independent heater unscrew bolts of an exhaust pipe of an independent / additional heater on шумоизоляционном the screen ( fig. 2.44).
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Fig. 2.45. Fastening of a forward noise isolation
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Turn off clamps 1 and 2 and remove forward шумоизоляционный the screen ( fig. 2.45). Back шумоизоляционный the screen remains established.
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Fig. 2.345. Installation of a directing finger in the adapter
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Insert directing finger of the adapter so that больший diameter 1 has been directed to the engine. Smaller diameter 2 is directed to the adapter ( fig. 2.345).
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Fig. 2.346. Проворачивание crankshaftа by means of the adapter
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Turn crankshaft by means of the adapter in a direction of rotation of the engine to ВМТ ( fig. 2.346).
Carving apertures in cam-shafts should be directed upwards ( fig. 2.347).
Establish clamps of cam-shafts on both ГБЦ and tighten bolts with the moment 20 Нм ( fig. 2.348). The cam-shaft clamp is established correctly if the apertures directed to bolts ГБЦ remain free.
Turn off the left and right support of the stabilizer.
Unscrew a lock bolt from the block of cylinders ( fig. 2.349).
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ATTENTION
Groping aperture ВМТ, crankshaft not to scroll.
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Twist fixing bolt with the moment 10 Нм in an aperture 1, if necessary – for a full centering of a bolt – twist crankshaft in both directions ( fig. 2.350) a little . Mark with a paint a direction of a course left driving chains of cam-shafts.
Unscrew bolts 1 and 2 phase shifters by means of a nozzle ( fig. 2.351). Remove both phase shifters.
Unscrew bolts 1 and 2 and remove натяжитель chains ( fig. 2.352). Mark with a paint a direction of a course right driving chains of cam-shafts.
Unscrew bolts 1 and 2 phase shifters by means of a nozzle ( fig. 2.353). Remove both phase shifters.
Unscrew bolts 1 and 2 and remove натяжитель chains ( fig. 2.354).
Installation
The chain drive is established.
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THE NOTE
Replace the bolts/screws tightened on a certain corner, and also sealing rings, манжетные consolidations and linings.
At прокручивании a cam-shaft any of pistons should not is in ВМТ. Danger of damage of valves/bottoms of the piston.
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Коленвал it is fixed by a fixing bolt in ВМТ ( fig. 2.350).
Clamps of cam-shafts are established on both ГБЦ and tightened with the moment 20 Нм ( fig. 2.348). Completely unload a lath успокоителя натяжителя the left and right chain drives of cam-shafts.
The piston of a tension element 1 should be put forward up to the end, its clamp thus will be unblocked – for this purpose натяжитель chains should be removed ( fig. 2.355).
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THE NOTE
If it is necessary to take a tension element from натяжителя chains, it is necessary to consider Adjusting position: the aperture is directed to the case bottom to натяжителю to a chain, the piston is directed to a lath натяжителя.
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Press a lath успокоителя натяжителя the right and left chain drives of cam-shafts inside against the stop and remove натяжитель by means of a pin ( fig. 2.356). If necessary clear the mesh oil filter 3 in both натяжителях.
Establish a new lining 2 behind on натяжитель chains 1 ( fig. 2.357). Establish натяжитель chains on left ГБЦ and put on a chain of a drive of cam-shafts, as is shown in drawing 2.352. Tighten bolts 1 and 2.
Replace bolts of cam-shafts.
Put on a chain of a drive of a cam-shaft an asterisk of a drive and phase shifters and twist, without tightening, bolts 1 and 2 ( fig. 2.351). Both phase shifters it should be possible turn on a cam-shaft, they should not be warped.
Remove a pin.
Establish натяжитель chains on right ГБЦ and put on a chain of a drive of a cam-shaft, as is shown in drawing 2.354. Tighten bolts 1 and 2.
Replace bolts of cam-shafts.
Put on a chain of a drive of a cam-shaft an asterisk of a drive and phase shifters and twist, without tightening, bolts 1 and 2 ( fig. 2.353). Both phase shifters it should be possible turn on a cam-shaft, they should not be warped.
Remove a pin.
Establish a countersupport with a bolt on the phase shifter of the left inlet cam-shaft.
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Fig. 2.358. Natjagivanie chains of a drive of a cam-shaft
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Preliminary pull a chain of a drive of a cam-shaft, having pressed a countersupport in an arrow direction ( fig. 2.358). Simultaneously preliminary tighten a bolt of a cam-shaft by means of a nozzle and динамометрического a key.
The inhaling moment: 40 Нм.
Keep an inlet cam-shaft in a condition of a preliminary tension and preliminary tighten a bolt of 1 final cam-shaft.
The inhaling moment: 40 Нм.
Tighten bolts of cam-shafts 1 and 2 left ГБЦ ( fig. 2.351). The inhaling moment: 80 Нм + to tighten on +90 (1/4 about.).
Establish a countersupport with a bolt on the phase shifter of the right final cam-shaft.
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Fig. 2.359. Natjagivanie chains of a drive of a cam-shaft
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Preliminary pull a chain of a drive of a cam-shaft, having pressed a countersupport in an arrow direction ( fig. 2.359). Simultaneously preliminary tighten a bolt of a cam-shaft by means of a nozzle and динамометрического a key.
The inhaling moment: 40 Нм.
Keep a final cam-shaft in a condition of a preliminary tension and preliminary tighten a bolt of 1 inlet cam-shaft.
The inhaling moment: 40 Нм.
Tighten bolts of cam-shafts 1 and 2 right ГБЦ ( fig. 2.353). The inhaling moment: 80 Нм + to tighten on +90 (1/4 about.).
Remove clamps of cam-shafts from both ГБЦ ( fig. 2.348). Turn crankshaft by means of the adapter on 2 turns in a direction of rotation of the engine while crankshaft again will not reach ВМТ.
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THE NOTE
If by mistake crankshaft has slipped position ВМТ, it is necessary to return it back approximately on 30 and again bring to ВМТ (fig. 2.346).
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Carving apertures in cam-shafts should be directed upwards ( fig. 2.347). Establish clamps of cam-shafts on both ГБЦ and tighten bolts with the moment 20 Нм.
The cam-shaft clamp is established correctly if the apertures directed to bolts ГБЦ remain free ( fig. 2.348). Twist fixing bolt accurately in an aperture ( fig. 2.350). The fixing bolt should enter into an aperture on crankshaftу 1, otherwise repeat adjustment.
Remove clamps of cam-shafts from both ГБЦ.
Remove fixing bolt crankshaftа.
Twist a carving stopper of mark ВМТ with a new sealing ring in the block of cylinders ( fig. 2.349). The further installation is carried out in return sequence.
Establish the stabilizer.
Establish the left and right covers driving chains.
Establish covers ГБЦ.
The inhaling moments
Натяжитель chains to ГБЦ: 9 Нм.
Bolts распредвалов*: 80 Нм +90 **
Carving stopper in the block of cylinders ***: 14 Нм.
* Replace bolts.
** 90 there correspond turn quarters.
*** Establish with a new sealing ring.
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