30/ENGINE - WORK ON INDIVIDUAL PARTS
107
600275-10
–
Check rocker arm shafts
for damage and wear.
» If there is damage or wear:
–
Change the rocker arm shafts.
–
Check the contact surface of adjusting screws
for damage and wear.
» If there is damage or wear:
–
Change the adjusting screws.
–
Check rocker arm rollers
for smooth operation and radial clearance.
» If rocker arm rollers
are stiff or if there is radial clearance:
–
Change the rocker arms.
600276-10
–
Install the short rocker arm shaft
and the long rocker arm shaft
.
–
Align the holes in the shafts with the holes in the cylinder head top section
.
600277-10
–
Clean the end caps thoroughly and check for damage and wear. Replace damaged
or worn parts.
–
Install the end caps with the O-rings.
Info
The hole in the end cap
must be aligned with the hole in the cylinder
head top section
and the rocker arm shaft.
19.11
Removing the valves
600278-01
–
Pretension the valve springs using the special tool.
Valve spring mounter (59029019000) (
–
Remove the valve keys and release the tension on the valve springs.
600279-10
–
Remove the spring retainer and springs.
–
Pull valve
downward out of the valve guide, remove the valve stem seal
and
remove the lower valve spring retainer
.
200189-10
–
Mark the valve to indicate the installation position.
Info
Place the valve into a box according to the installation position and label the
box.
