In-vehicle Repair Special Tool(s) | Installer, valve stem oil seals 303-037 (21007A) | | Compressor, valve spring 303-361 (21155) | | Adapter for 303 - 361 303-361-04 (2115504) | | Adapter for 303 - 361 303-361-05 (2115505) | | Installer, valve collets 303-362 (21156) | | Connector, air supply (cylinder head) 303-363 (21157) | | Pliers, valve stem seals 303-508 (21211) | Materials Name Specification Engine oil WSS - M2C912 - A1 Removal | -
Remove the camshafts. For additional information, refer to Camshafts in this section. | | -
Remove the ignition coil (four bolts). | | -
Fit the special tools. - Apply compressed air (7-10 bar) to the cylinder being worked on.
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Remove the valve spring using the special tool. - Compress the valve spring.
- Take out the valve collets, valve spring retainer and valve spring.
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Remove the valve stem seal using the special tool. | | -
Repeat the previous steps on all the other valves. | Installation | -
Push the valve stem seal fitting sleeve onto the valve stem. | | -
CAUTION:The valve stem seals for the inlet valves are green, those for the exhaust valves are brown. Install the valve stem seal. - Lubricate the valve stem and valve stem seal lip with engine oil .
- Slide the valve stem seal onto the valve stem with the special tool.
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Install the valve spring using the special tool. - Compress the valve spring using the special tool and pull the valve stem seal fitting sleeve from the valve stem.
- Fit the valve collets with the special tool.
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Repeat the previous steps on all the other valves. | | -
Remove the special tools. | | -
Install the ignition coil. | | -
Install the camshafts. For additional information, refer to Camshafts in this section. | | |