Withdrawal
Remove the ground wire from the battery.
Remove the top timing belt cover and head cover.
On engines with a carburetor, remove the fuel pump. On PTE engines, remove the camshaft position sensor.
Remove the ignition coil, support hanger and capacitor from the cylinder head end.
Unscrew nuts of fastening of levers of a drive of valves. When installing levers, new nuts must be used. Remove the valve actuation levers and hydraulic tappets. Valve levers, hydraulic tappets, guides and spacer plates must be marked with adhesive tape or laid out in sets so that they fall into place during assembly (see fig. 2V.21-2V.26)
Turn the crankshaft of the engine until the marks on the camshaft pulley and cylinder head, as well as on the crankshaft pulley and the oil pump housing, are aligned.
Remove the camshaft pulley.
Remove the camshaft seal.
Remove the two bolts from the drive side. remove the plate fixing the camshaft (see figs 2B.27, 2B.28).
Remove the camshaft plug from the rear of the cylinder head (see fig. 2B.29, 2B.30).
Remove the camshaft from the cylinder head through the mounting hole of the ignition distributor (see fig. 2V.31).
Examination
Clean and inspect removed parts for wear.
Check the condition of the valve actuator levers and the surface of the levers in contact with the ends of the valve stems for wear, scratches and scratches.
Compare the previously measured camshaft play with the required value. If the play exceeds the required value, the camshaft fixing plate must be replaced.
Installation
Installation is carried out in the reverse order of removal, taking into account the following remarks.
Lubricate the camshaft bearings, camshaft and fixing plate with engine oil before assembly. After tightening the fixing plate mounting bolts, check the camshaft play.
After installing the camshaft, install a new O-ring and a new plug on the back of the cylinder head (see fig. 2V.33).
Lubricate the hydraulic tappets with oil before reinstalling to their original locations in the cylinder head.
Lubricate, reinstall the valve levers and secure them with new nuts. Before each lever is tightened with a nut, the corresponding valve lifter must be installed at its lowest point (in contact with the circle of the base of the cam). Rotate camshaft cam (for crankshaft pulley bolt) as needed to reach this position.
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