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68
FIAT·850 PASSENGER CARS
TIGHTENING REFERENCE
I'
I
Thread
Torque
IT E M
Part No.
Diameter
Material
and Pitch
It.lbs
kgm
.
I
-
Main bearing cap screw
4052463
M 10 x 1.25
R 100
44.8
6.2
.
Con rod bearing cap screw _
4112072
M8x 1
R 100
25.3
3.5
I
- -
Cylinder head (and temperature
4105331
gauge sending unit)
holddown
4105332
M 9 x 1.25
R 100
28.9
4
screws
4105333
Flywheel mounting screw
1/42382/30
M 8 x 1.25
R 100
25.3 to 28.9
3.5 to 4
Driven sprocket-ta-camshaft screw
1/59707/20
M 10 x 1.25
R 80
36.2
5
Rocker shaft support stud nut
1/61008/20
M 8 x 1.25
R 80
(stud R 100)
14.5
2
-
Drive pulley cover screw
1/38236/21
M6x I
R 80 Znt
5.8
0.8
_.
,
R 50 Znt
Generator, Ian and
water
pump
drive hub-pulley-to-crankshaft nut
4064759
M 18 x 1.5
(shaft
72.3
10
,
C 40 Bon)
Air conveyor-ta-water pwnp body
893814
M8x I
R 80 Znt
18.1
2.5
screw
Spark plugs
4079728
M 14 x 1.25
-
18.1 to 21.7
2.5 to 3
.
.
4079727
Engine mounting bracket-to-trans-
R 50 Znt
mission stud nut
1/61008/11
M 8 x 1.25
(stud
18.1
2.5
R 80 Znt)
Engine
mounting bracket-ta-body
4122373
M 10 x 1.25
R 80 Znt
21.7 to 25.3
3 to 3.5
shell screw .
Engine rear mounting bracket-to-
R 50 Znt
body shell screw nut
1/21647/11
M 10 x 1.25
(screw
27.5
3.8
12 NC3 Znt)
Side link-to-engine-and-body shell
R 50 Znt
screw nut
1/61041/11
M8xl.25
(screw
16.6
2.3
I
R 80 Znt)
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