Specifications
GENERAL SPECIFICATION
DATA
1041
i’.
,.
‘1
<
,+
2.25
LITRE
PETROL
ENGINE
’.
1
ENGINE
Bore
.................................................................
Stroke
...............................................................
Type
.................................................................
Capacity
............................................................
Valve operation.
..................................................
Compression ratio..
..............................................
Maximum power
@
4000 rpm
.................................
Maximum torque
@
2000 rpm..
...............................
4
cylinder
90,47 mm (3.562 in)
88,9
mm
(3.500 in)
2286
cm3 (139.500
in3)
Overhead by push
-
rod
8.0:
1
55.2 Kw (74 bhp)
163
Nm
(120
Ibf
ft)
Crankshaft
Main journal diameter
.......................................
63,487
-
63.500 mm (2.4995
-
2.500 in)
Minimum regrind diameter
..............................
63,246
-
63,2333
mm
(2.4900
-
2.4895 in)
Crankpin
journal diameter
..................................
58,725
-
58,744 mm (2.312
-
2.31275 in)
Minimum regrind diameter
..............................
58,48985
-
58,47080 mm (2.30275
-
2.30200
in)
Taken on thrust washers at centre main bearing
Crankshaft end
-
float
..........................................
0,05
.
03
mm
(0.002
-
0.006 in)
.
Crankshaft end thrust
........................................
Main bearings
Number and type
..............................................
Material
.........................................................
Diametrical clearance
........................................
Undersizes
......................................................
5
halved shells
Steel shell, tin
-
aluminium lined
0,020
-
0,063 mm (0.0008
-
0.0025 in)
0,25
mm (0.010 in)
Connecting
rods
Type
..............................................................
Horizontally split big end, plain small end
Length between centres..
....................................
175,36
-
175,46 mm (6.904
-
6.908 in)
Big
end bearings
Type and material
.............................................
Steel shell, copper
-
lead lined
0,019
-
0,068 mm (0.00075
-
0.0027 in) Diametrical clearance
........................................
End
-
float on crankpin
........................................
.....
0,20
-
0,30 mm
(0.007
-
0.012 in)
.....
.I.
.,
Undersizes
......................................................
0,25 mm
(0.010
in)
Gudgeon pins
Type
..............................................................
Floating
Fit in piston
.....................................................
Push
fit by hand
Clearance in connecting rod
................................
0,007
-
0,015
mm
(0.0003
-
0.0006
in)
Pistons
Type
8.O:l
compression ratio
...............................
Aluminium alloy, flat top
Clearance in bore, measured at bottom
of
skirt at
right angles to gudgeon pin:
Standard size pistons
......................................
0,06
-
0,07 mm (0.0023
-
0.0027
in)
Oversize pistons
............................................
0,043
-
0,055
mm
(0
0017
-
0
0022
in)
._
.
,..::.,
i.
.-.
,/.
,
3