Features of the camshaft device and its drive (VAZ-21213)

Camshaft - cast iron, rests on five journals and rotates in an aluminum bearing housing mounted on the cylinder head. The main dimensions of the camshaft and bearing housing are shown in Fig. 2-54. The surfaces of the cams are bleached to increase wear resistance. The camshaft is held from axial movement by a thrust flange placed in the groove of the front bearing journal of the shaft.



Camshaft drive. It is carried out from the drive sprocket 5 (Fig. 2-55) of the crankshaft by a double-row roller chain 2. The same chain also drives the sprocket 4 of the oil pump drive shaft. The chain drive has a semi-automatic tensioner 8 with a shoe 7 and a chain damper 3 with rubber pads.





A limiting pin 6 is installed at the bottom of the cylinder block, preventing the chain from falling into the crankcase when the camshaft sprocket 1 is removed from the vehicle.

[The information is published on the website: VAZBOOK.ru]