Checking parts:
– Inspect the gearwheel and cap for dam-
age caused by moving the decompres-
sion lever in the wrong direction or
operating the automatic decompressor
when the engine is already running.
– Use new sealing rings.
Install by following the dismantling instruc-
tions in the reverse order as appropriate.
Note:
– With the automatic decompressor in
position „0“, note the correct position of
the gearwheel (Fig. 95).
– Check that the lifting pin can move
freely.
– When installing threaded rod (94/19),
make sure that pressure pin (94/17)
engaged in the locating slot on shaft
(94/14).
Adjusting the automatic
decompressor:
Adjustment is needed if:
a) the decompression effect is no longer
sufficient.
b) the engine does not reach its full com-
pression ratio (hissing noise when
engine is turned over and the decom-
pressor is not engaged).
c) cylinder head repairs are carried out.
Check dimension „B“:
– Use a suitable measuring tool to check
dimension „B“; Fig. 95.
Note:
For this check, the rocker should rest
lightly on the valve stem but without open-
ing the valve (turn the engine over until
the tappet is resting on the base circle of
the cam).
2
L / M . . 09.96
95
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