1 - bearing cap
2 - nut, 15 Nm
3 - camshaft flywheel
4 - washer
5 - screw, 65 Nm
6 - drive chain
7 camshafts
The intake camshaft is marked with a number in the area between the pair of cams of the third and fourth cylinders. Install only a shaft with the same designation. Your distributor will be able to sell you a suitable shaft if you specify the model, year of manufacture and engine number of the car.
The text is copied from this portal www.vwmanual.ru
Insert both end bearing journals of the camshafts into prisms or clamp them between the stop centers of a lathe, and place a dial indicator in the area of the central bearing journal. Slowly turn the camshaft and read the dial indicator. If the indicator reading is more than 0.01 mm. the shaft is bent and must be replaced, check for visible damage to the bearing journals.
To measure the axial clearance of the camshafts, insert them into the cylinder head (without pushers) and secure with the front and rear bearing caps. Place the cylinder head on a smooth surface.
Place the pointer indicator at the end surface and move the shaft from side to side, the gap should not exceed 0.15 mm. Otherwise, the bearing cap pressure surface is worn out.
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