16 ENGINE 166
300038-10
– Insert the special tool and firmly press it toward the piston.
– Turn the special tool counterclockwise, thereby pressing the piston pin retainer into
the groove.
Insertion for piston ring lock (75029035000) ( p. 233)
– Make sure that the piston pin retainer is seated correctly on both sides.
305555-10
– Remove the cloth.
– Keep the timing chain tensioned. Push the cylinder down carefully and let the
grooved pins engage.
16.5.21 Installing the cylinder head
305545-11
– Put on the cylinder head gasket.
Info
Make sure the grooved pins are seated correctly.
– Mount the cylinder head.
–
Mount and tighten screws
with the washers.
Guideline
Cylinder head screw M10 Tightening
sequence:
Tighten diag-
onally, begin-
ning with the
rear screw on
the timing
chain shaft.
Step 1
15 Nm
(11.1 lbf ft)
Step 2
30 Nm
(22.1 lbf ft)
Step 3
45 Nm
(33.2 lbf ft)
Step 4
60 Nm
(44.3 lbf ft)
Lubricated with
engine oil
Info
Always use new cylinder head screws.
305544-11
–
Mount and tighten screws
.
Guideline
Cylinder head screw M6x25 10 Nm
(7.4 lbf ft)
Loctite
®
243™