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2-3-3-snyatie-proverka-i-ustanovka-raspredelitelnykh-valov.html
2.3.3. Removal, check and installation of camshafts
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Fig. 2.95. Engine camshafts in volume of 1,8 l
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Engine camshafts in volume of 1,8 l are shown on fig. 2.95.
Removal
Disconnect a hose and a ventilating hose of the valve of compulsory ventilation of a case.
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Fig. 2.96. Removal of pulleys of the pump of cooling liquid and a cranked shaft
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Remove a pulley of the pump of cooling liquid and a pulley of a cranked shaft (fig. 2.96). Uncover a belt of a drive of GRM.
Weaken bolts of a roller of a natyazhitel of a belt of a drive of GRM, weaken a tension of a belt and temporarily fix a roller of a natyazhitel.
Remove a belt of a drive of GRM from a camshaft asterisk.
Unscrew bolts of fastening of the central cover and then uncover.
Remove ignition coils assembled.
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Fig. 2.97. Cover of a head of the block of cylinders
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Unscrew bolts of fastening of a cover of a head of cylinders and then uncover (fig. 2.97). Remove a camshaft asterisk.
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Fig. 2.98. Removal of covers of bearings of camshafts
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Remove covers of bearings of a camshaft and a chain of a drive of GRM (fig. 2.98). Remove camshafts.
Take hydrojacks.
Check
Check camshaft necks on lack of wear. If necks of a shaft are considerably worn-out, replace a camshaft.
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Fig. 2.99. Check of an acting part of cams of a camshaft
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Check an acting part of cams of a camshaft on absence of damage. If cams of a shaft are damaged or their wear exceeds admissible size, replace a camshaft (fig. 2.99).
Height of cams of a camshaft
Nominal rate:
- the inlet: 44,82 mm;
- the final: 44,72 mm.
Maximum permissible value:
- the inlet: 44,72 mm;
- the final: 44,62 mm.
Check a surface of a back part of cams of a camshaft on absence of damage or considerable wear and if necessary replace a shaft.
Check a condition of a bed of a camshaft on absence of damage. If wear of a bed of a camshaft exceeds admissible size, replace a head of cylinders in collecting or covers of bearings of a camshaft.
Axial gap of a camshaft: 0,1–0,2 mm
Check of an epiploon of a camshaft
Check a working edge of an epiploon on lack of wear. If the working edge is worn-out, replace an epiploon.
Check a condition of a surface of the camshaft contacting to a working edge of an epiploon. If the surface of a shaft is worn-out, replace a camshaft.
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