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2.3.3. Removal, check and installation of camshafts

Fig. 2.95. Camshafts of the engine with a capacity of 1,8 l


Camshafts of the engine with a capacity of 1,8 l are shown in fig. 2.95.

Removal
Disconnect a hose and a ventilating hose of the valve of compulsory ventilation of a case.

Fig. 2.96. Removal of pulleys of the pump of cooling liquid and bent shaft


Remove a pulley of the pump of cooling liquid and a pulley of a bent shaft (fig. 2.96).
Uncover a GRM drive belt.
Weaken bolts of a roller of a natyazhitel of a belt of the GRM drive, weaken a tension of a belt and temporarily fix a roller of a natyazhitel.
Take off a GRM drive belt from a camshaft asterisk.
Turn off bolts of fastening of the central cover and then uncover.
Remove ignition coils assembled.

Fig. 2.97. Cover of a head of the block of cylinders


Turn off bolts of fastening of a cover of a head of cylinders and then uncover (fig. 2.97).
Remove a camshaft asterisk.

Fig. 2.98. Removal of covers of bearings of camshafts


Uncover bearings of the camshaft and a chain of the GRM drive (fig. 2.98).
Remove camshafts.
Take hydrocompensators.

Check
Check camshaft necks for lack of wear. If necks of a shaft are considerably worn-out, replace the camshaft.

Fig. 2.99. Check of the acting part of cams of the camshaft


Check the acting part of cams of the camshaft for lack of damage. If cams of a shaft are damaged or their wear exceeds admissible size, replace the camshaft (fig. 2.99).

Height of cams of the camshaft
Nominal rate:
- inlet: 44,82 mm;
- final: 44,72 mm.
Maximum permissible value:
- inlet: 44,72 mm;
- final: 44,62 mm.
Check a surface of a back part of cams of the camshaft for lack of damage or considerable wear and if necessary replace a shaft.
Check a condition of a bed of the camshaft for lack of damage. If wear of a bed of the camshaft exceeds admissible size, replace a head of cylinders assembled or covers of bearings of the camshaft.
Axial gap of the camshaft: 0,1–0,2 mm

Check of an epiploon of the camshaft
Check a working edge of an epiploon for lack of wear. If the working edge is worn-out, replace an epiploon.
Check a condition of the surface of the camshaft contacting to a working edge of an epiploon. If the surface of a shaft is worn-out, replace the camshaft.