400373-10
– Check sealing seat A of the valves.
Valve - sealing seat width
Intake 1.60 mm (0.063 in)
Valve - sealing seat width
Exhaust 2.00 mm (0.0787 in)
» If the measured value does not equal the specified value:
– Machine the valve seat.
– Blow compressed air through all oil channels and check that they are clear.
16.4.27 Installing valves
300118-01
– Position the valve spring cap 1. Install new valve stem seals 2.
– Mount valves 3 according to their normal built-in position.
– Install the valve springs 4 and the spring retainers.
300116-11
– Pretension the valve springs using the special tool.
Valve spring compressor (59029019000) ( p. 212)
Valve spring mounting device (78029060000) ( p. 219)
300115-11
– Mount valve keys.
Info
When mounting the valve keys, check that they are seated correctly; prefer-
ably, fix the valve keys to the valve with a little grease.
– Place shims 5 into the valve spring retainers according to the installation position.
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