Saab SONETT III Service Manual page 8

ENGINE
General data
Engine, type V4
Power DIN at 4700 rev/min
Max. torque at 2500 rev/min (DIN) 115
Compression ratio, nominal
Number of cylinders
Cylinder bore
Stroke
Cylinder volume
Firing order
Placement of cylinders (from front of car):
Right hand side
Lett hand side
ldling speed
Engine suspension
As from model 1971
8.0:1
2.63 in. (66.8 mm)
104 cu.in . (1698 cm 3 )
Model 1970
4-stroke, 4 cylinders
48 kW (65 hp)
Nm (85 ft.lb., 11.7 kpm)
9.0:1
4
3.54 in. (90 mm)
2.32 in. (58.86 mm)
91.4 cu.in . (1498 cm 3 )
1-3-4-2
1-2
3-4
900 rev/min
3-point suspension
Weight, incl. electr. equipment and carburetor 265 Ib. (120 kg)
Cylinder block
Type
Material
Number of main bearings
Cylinder block bores for camshaft
bushings
Cylinder block bores for balance
shaft bushings
Cylinder bore:
Standard
Oversize 0.02 in. (0.5 mm)
Oversize 0.04 in. (1.0 mm)
Diameter main bearing bore
Thrust bearing width
600 Vee formation, block and
crankcase casted in one piece
Cast iron of a special alloy
3
front 44.65-44.68 mm
center 44.27-44.30 mm
rear 43.89-43.92 mm
front 54.420-54.445 mm
rear 57.620-57.645 mm
90.030-90.040 mm
90.530-90.540 mm
91.030-91.040 mm
red 60.62-60.63 mm
biue 60.63-60.64 mm
22.61-22.66 mm
Pistons
Material
Aluminium
Number of piston rings, on each piston 2 compression and
1 oil control ring (tripartite)
Permissible difference in weight (piston
and connecting rod) in one and the same
engine
0.46 oz. (13 g)
Piston-ring groove width
upper 2.030-2.055 mm
center 3.030-3.050 mm
lower 4.000-4.020 mm
Piston diameter:
(The piston is out-of-round and
spherical) standard 89.978-90.002 mm
oversize 0.5 90.478-90.502 mm
oversize 1.0 90.978-91.002 mm
020
-
1
SAAB
Nov. 1972