1
2
3
Checking the valve timing
117
Note:
Unsynchronised valve timing can cause
severe engine damage.
For this reason, following engine faults that
can cause twisting of the shrunk-on cam-
shaft toothed wheel, the correct seating
must be checked by checking the valve
timing.
This check is also recommended after the
camshaft is fitted.
Fig. 1
Remove the cylinder head cover from the 1st cylin-
der.
Set the valve clearance of the 1st cylinder cor-
rectly.
Fig. 2
Turn the engine using the barring gear until the
valves of the 1st cylinder overlap.
Turn the engine back to approx. 50
_
before “TDC”,
then turn forwards to 30
_
before “TDC” again.
−
Observe graduation on flywheel
−
Fig. 3
Place the dial gauge with approx. 2 mm initial ten-
sion on the valve spring retainer of the exhaust
valve on cylinder no. 1 and set to “0”.
Turn engine in running direction through 180
_
.
−
Exhaust valve fully closed
−
Read the stroke of the valve on the dial gauge.
The valve stroke must be between 4.5 and
5.3 mm.
Содержание D 2840 LE 301
Страница 1: ......
Страница 2: ......
Страница 16: ...Notes 14...
Страница 20: ...Engine views 18 Engine views D 2842 LE 301 9 10 11 12 9 8 6 5 4 3 2 1 13 14 15 16 17 18 6 7 8...
Страница 150: ...Notes 148...
Страница 151: ...149 Service Data...
Страница 179: ...177 Special tools...
Страница 180: ...Special tools 178 2 3 4 5 6 7 8 1 6 1 6 2 6 3 9 1 9 2 9 3 9...
Страница 182: ...Special tools 180 10 11 16 14 14 1 12 13 18 18 1 12 1 12 2 15 5 15 4 15 1 15 1 15 2 15 3 15 3 15 6 15 7 15 17...
Страница 184: ...Special tools 182 21 22 25 25 2 24 25 1 26 27 1 27 2 27 20 1 19 2 19 1 20 2 19 20 28 23...
Страница 186: ...Special tools 184 30 29 32 31 33...
Страница 189: ...Special tools 187 2843 Pressing mandrel for cap dia 50 1 mm Pressing mandrel for cap dia 62 1 mm...
Страница 193: ......
Страница 194: ......