VALVE CLEARANCE ADJUSTMENT
Special Tools
Tool Illustration Tool Name Tool Number Tappet hold-down tool 303-540 Tappet hold-down tool adaptor 303-540/02 Fan nozzle - air gun 303-590
Scheme 120
| CAUTION | Rotating the crankshaft in a counterclockwise direction may cause engine damage. Crankshaft journals are directionally machined. Rotating the crankshaft counterclockwise can raise burrs on bearing surfaces, reducing engine life. |
| CAUTION | Camshaft lobes must be 180 degrees away from each valve tappet or valve clearance will be incorrect. |
Scheme 121
Scheme 122
Scheme 123
Scheme 124
- Disconnect the battery ground cable. Refer to «Battery Disconnect and Connect»(ref-568400-S03532047432013072200000) information.
- Check the valve clearances. Refer to: «Valve Clearance Check»(ref-568443-S27595981502013072200000) .
- Rotate the engine clockwise to position the camshaft lobe away from the valve tappet.
- Install the special tool 303-540, to the cylinder head. Tighten the 2 bolts to 10 Nm
- Attach the special tool 303-540/02 to 303-540. Secure with the 2 wing nuts.
- Position the special tool to the tappet as shown.
- Using the special tool, compress the valve spring.
- Remove, clean and measure the shim. Surround the immediate working area with a cloth, to retain any loose shims displaced by the compressed air. Use the special tool 303-590, aimed at the edge of the shim, to lift it from the tappet. Note the position of each one.
- Install the new shim. Clean the components. Lubricate the shim with clean engine oil. Release and remove the special tools as required.
- Using the feeler gauge set, measure the clearance between the camshaft and the valve shim.
- Repeat the above procedure for the remaining valves.