M 07.00 Cylinder Head; M 07.10 Air-Cooled Engines - Hatz 2-4L30 Workshop Manual

M 07.00 Cylinder head

M 07.10 Air-cooled engines

–
Preparations:
– Take off the enclosure hood.
– Take off the exhaust-side enclosure and
the muffler (silencer); see A 03.00.
– Unscrew and remove the air outlet
shaft, side panel and cross-member;
see M 35.00.
– Unscrew and remove the cover plate
and take out the screws for the base
plate; see M 35.00.
– Take off the air cleaner.
– Remove the injector; see M 14.00.
Dismantling:
– Take off the cylinder-head (rocker)
cover.
– Unscrew the shouldered nuts (73/1) and
bolts (73/2).
– Pull off the centering flanges (73/3).
– Detach the support plate mounts.
– Press the air guide housing and suction
shaft apart.
– Lift off the support plate; see Fig. 74.
– Detach the exhaust manifold and air in-
take pipe.
Note:
To simplify dismantling of the air intake pi-
pe, it is best to unscrew and remove the
air cleaner (74/1).
– Lift off the cylinder head and remove
the pushrod protective tubes.
Checking the cylinder head:
– Inspect for cracked webs or worn valve
tapers.
– Check the radius of the rocker pads for
wear.
73
74
3
L / M . . 09.96