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5
8
11-13 Nm (1,1-1,3 kgm)
6
CHECKING WEAR LIMITS
Chart references
Component
9
Head
11
Cylinder
14
Piston pin
15
Piston
16
Upper ring
Lower ring
19
Laminar valve
17
17
22
18
24
21
19
20
11
7
6-9 Nm (0,6-0,9 kgm)
5 Nm (0,5 kgm)
L
10
9
Wear limit
Flatness limit: 0,05 mm
Max bore: 41,066 mm
Min diameter: 40,912 mm
Min diameter: 11,98 mm
Piston-cylinder clearance: 0,100 mm
End space max: 0,7 mm
End space max: 0,7 mm
Valve body – laminar element space: 0,2 mm
23
5 Nm (0,5 kgm)
OM
N
OM
14
N
15
16
12
2
3
1
2
4
3
N
: New item
OM
: Engine oil
O.C.
: Gearbox oil
OBM
: Molybdenum bisulphuroil
G
: Grease
L
: Loctite
DISASSEMBLY SEQUENCE
HEAD – CYLINDER – PISTON
Remove the 2 screws (1), retain the 2 T sleeves (2).
Remove the 2 screws (3).
Remove the LH cylinder cover (4) and RH cover (5).
Remove spark plug (6) and thermostat (7).
Remove the four tightening head nuts (8).
Remove head (9), head gasket (10), cylinder (11), base gas
ket (12).
Remove the pin stop (13).
Slide out pin (14) and piston (15).
Remove rings (16).
13
THROTTLE BODY – LAMINAR PACK
Remove the 4 screws (17) securing the manifold and retain
the washers (18).
Slide off the mill pack (19) and gaskets (20).
Remove the throttle body hose clamp (21).
Remove the throttle body (22).
Disconnect the oil pump hose (23).
Do not lose the intake manifold (24).
REASSEMBLY
Reverse the order of disassembly instructions, making sure
tightening torques are correct, and all components requiring
grease are greased or, if necessary, replaced with components
specified in the table.
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