Note: Only the left end of the front head intake camshaft has a seal installed. This is because this shaft drives the cooling system pump with a belt. On the latest models, the cuff is supplied with the body and cannot be replaced separately. The camshaft drive sprockets are covered with a chain cover.
1. Disconnect the negative battery cable.
2. Detach the coolant hose from the plastic cover on the front of the engine. Turn out bolts and remove a cover.
3. Remove the cooling pump drive belt by pulling the tensioner towards the camshaft. Remove the belt and carefully release the tensioner.
4. Remove the camshaft pulley with a small screwdriver.
5. On early models, pry out the cuff with a small screwdriver.
6. On models of late releases turn out bolts of the case of a cuff from a head of the block and remove a lining.
7. Wipe the camshaft seal socket or block head joint.
8. On early models, lubricate the cuff lip with engine oil. Then push the cuff into place through the tube. Wipe off any remaining oil.
9. On models of later releases, install a new gasket on the cuff body, lubricate the cuff edge with engine oil. Install the oil seal housing on the head of the block, directing the oil seal to the end of the camshaft. Tighten the bolts to the required torque.
10. Settle the pulley on the camshaft by tightening the bolt and nut with washers. The end of the pulley must be flush with the end of the camshaft. If necessary, preheat the pulley with a gas burner before installation.
11. Move the tensioner towards the camshaft and put the belt on the water pump pulley. Release the tensioner and check if the belt lies correctly in the pulley grooves.
12. Install the plastic cover and tighten its bolts. Attach the coolant hose.
13. Connect the negative battery cable (chapter 5, paragraph 1).
Note: To restore the settings of the engine management system due to battery disconnection, a mileage of about 16 km is required. In this case, the engine may not work quite normally.
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