34
MS 171, MS 181, MS 211
– Clean the sealing faces on the
cylinder, engine pan and oil
seals, remove gasket residue if
necessary,
b
16
– Apply fresh sealant to sealing
faces,
b
16
– Install new oil seals,
b
8.6
:
Make sure the oil seals are
properly seated
– they must be installed flush
(arrow).
:
Pass the clutch end of the
crankshaft (1) through the
opening (arrow) in the engine
housing.
– Carefully place the engine in the
engine housing
– support engine pan from below
with one hand.
533RA093 TG
533RA094 TG
1
– Position the engine in the engine
housing and hold it there
– the holes in the engine housing,
engine pan and cylinder must line
up.
:
Fit and tighten down the cylinder
mounting screws (arrows).
– Install the worm,
b
8.3
– Reassemble all other parts in the
reverse sequence.
– Tightening torques,
b
3.5
– Carry out leakage test,
b
8.2
8.6
Crankshaft
– Remove the engine,
b
8.5
:
Pry the engine pan (1) away from
the engine at the lugs (arrows).
– Remove the engine pan.
533RA091 TG
533RA096 TG
1
:
Lift the crankshaft out of the
bearing seats (arrows).
:
Carefully pull the crankshaft and
piston out of the cylinder.
– Inspect the crankshaft and ball
bearings and replace if
necessary,
b
8.7
– Inspect piston and piston rings
and replace if necessary,
b
8.8,
b
8.8.1
:
Remove the retaining ring (1).
:
Pull the oil seals (arrows) off the
crankshaft stub.
533RA097 TG
1
533RA098 TG
533RA099 TG
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