Withdrawal
1. Disconnect the suction hoses from the positive crankcase ventilation valve (PCV).
2. Remove the water pump pulley and crankshaft pulley.
3. Remove the toothed belt cover.
4. Move the toothed belt tensioner pulley towards the water pump and temporarily secure it.
5. Remove the toothed belt from the camshaft sprocket and remove it completely.
6. Remove the camshaft sprocket.
7. Remove the ignition coil assembly.
8. Remove rocker cover.
9. Remove rocker shaft assembly (Cm. "Rocker arms and their shafts").
10. Remove the camshaft bearing caps.
11. Remove the camshaft.
Examination
1. Check the camshaft journals for wear. If they are worn out, replace the camshaft.
2. Check the lobes of the cams for damage. If they are damaged or badly worn, replace the camshaft.
3. Check each bearing for damage. If its surface is excessively worn, replace the cylinder head assembly or camshaft bearing cap. what is necessary.
4. Oil seal (camshaft toe).
- 1) Check the edges for wear. If the edges are worn out, replace the seal.
- 2) Check the contact surface of the edge of the camshaft oil seal. If it is in the contribution stage, replace the camshaft.
Camshaft axial play - 0.07-0.18 mm
Installation
1. Install the camshaft after lubricating its necks with engine oil.
2. Install the camshaft bearing caps.
3. Install the ignition coil.
4. Install the rocker arms and their shafts.
5. Using a tool to install the camshaft oil seal (09221-21000), press in the camshaft oil seal. Make sure engine oil is applied to the outer surface of the oil seal.
Place the oil seal on the front end of the camshaft and install it by moving the device with a hammer until the seal is fully seated.
6. Install the camshaft sprocket and tighten the bolts to the required torque.
7. Align the marks on the crankshaft and camshaft sprockets. The #1 cylinder piston should be at top dead center on the compression stroke.
Tightening torque: Camshaft sprocket bolt - 80-100 Nm
8. Install the gasket in the groove of the rocker cover.
9. Temporarily install the rocker cover.
10. Start the engine and let it idle.
11. Establish a cover of yokes and tighten bolts the demanded moment.
Tightening torque: Rocker cover bolt - 8-10 Nm
12. Install the toothed belt cover.
13. Install the water pump pulley and crankshaft pulley.