Group
21
Reconditioning engine
Assembly
F5
Install rocker arm assembly
Use the correct bridge on the right and left sides.
Brid-
ges are the same but must face different directions.
- left side circlip must face forwards and
- right side circlip must face rearwards.
245083-1
246949-2
F6
B27A
B 27
E/F
B 28
A, E, F
Early type
Engine number
11374
57276
Late type
Engine number
11375
57277
All
Clean,
lubricate and install cylinder head bolts
(Remove
3
mm drill beneath guide sleeves.)
Tighten bolts by hand.
Two different types
of
cylinder head bolts are
in
use, de-
pending on the thread length in the cylinder block.
Late type
=
bolt thread length 27 mm
(1.063
in) with was-
her
Early type
=
bolt thread length 30 mm (1.181 in) without
washer
Only late type bolts are available as spare parts.
If late type bolts are used
on
early type cylinder heads,
washers must be used (the same washers as used for late
type bolts).
6%=C^S>5
5
3<§XZ^§>1
2#C^#4
7#C^§>8 8#C^§>7
H
4#C^#2
J-
F7
Tighten cylinder head bolts
Tighten to the correct torque in three stages.
1
=
10
Nm
( 7
ft.lbs.)
2
=
30
Nm
(22 ft.lbs.)
3
=
60 Nm (44 ft.lbs.)
F8
Install other cylinder head
Install according
to
C53-65.
53
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