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TDC
setting
Hexagon nut
Dial gauge ............. . .
Turn crankshaft
Fixing device
Data
Piston travel at crankshaft setting
measure by attaching dial gauge holder
363 589 02 21 00 to cylinder head. Mount valve
on piston crown. Turn back crankshaft to
approx. 10" before TDC of No 1 cylinder. Inset-t
dial gauge in holder. Fit tracer pin of dial gauge
onto valve stem with preload of 2 mm. Slowly
turn crankshaft in direction of rotation of engine
until the large pointer stops (TDC setting, steps
6 through 11).
. . . . . . . . . , . . .
unbolt at TDC pulse generator, withdraw TDC
pulse generator (step 12).
. . * . . . . . . . . . .
loosen and set preload of 5 mm, position scale
of gauge to " 0" (step 13).
. . . . . . . . . . . . .
until dial gauge has moved back by 2.85 mm or
3.07 mm, respectively (step 14).
. . . . . . . . . . . .
Insert special tool 119 589 00 21 00 into setting
slide. The pin in the vibration damper must
engage in the groove of the fixing device;
correct setting slide, if necessary (steps 14
through 19).
EXIT
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