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Engine performance graphs, Turbo engine
020—18
(C
2
Engine model 1975—81
.
Page 35
Engine model 1982—
General data
Single-carbureted engine
Type
Power rating, DIN (SAE net)
Max. torque, DIN
Compression ratio
Cylinder bore
Stroke
Cylinder volume
Firing order
Engine idling speed (warm engine
and headlamps on low beam)
Weight mci. clutch, throttle
valve housing, exhaust manifold,
starter motor and oil filter
Fuel, minimum octane number,
4-cyl, 4-stroke with
overhead camshaft
73 kW (100 hp)/5.200 r.p.m.
162 Nm (120 ft.lb., 16.5 kpm)
3.500 r.p.m.
9.5:1
3.543 in (90.0 mm)
3.071 in (78.0 mm)
1’,T
n
-
--
JL1.U LU.I I.
(,rrnr
-
UYo) ulil I
1-3-4-2
850 + 50 r.p.m.
308 lb. (140 kg) approx.
RON 93 (Sweden spec.)
RON 97 (Europe spec.)
Cylinder block
Material
No. of main bearings
Cylinder bore:
Standard (A)
Standard (B)
1st oversize
2nd oversize
Specially alloyed cast iron
5
90.000-90.010 mm
90.010-90.020 mm
90.500 mm
91.000 mm
Cylinder head
Max. grinding or facing of
cylinder head surface
Distance from cylinder head
gasket to valve cover gasket
surface, new cylinder head
0.4 mm
92.75 + 0.05 mm
Pistons
Make
Material
No. of rings per piston
Width of ring grooves:
Top
Scond
S cr a per
“MAHLE” or “KARL SCHMIDT’
T
Pistons of different makes
must not be fitted in the
same engine.
Light metal alloy
2 compression rings
1.79-1.81 0110
2.03-2.05 mm
4.01-4.03 mm
Engine model 1982—
020—19
Page 36
Piston diameter perpendicular
to gudgeon pin (“MAHLE” measu
red 16 mm from lower edqe of
piston “KARL SCHMIDT” measured
26 mm from lower edge of piston)
Standard A (not spare part)
Standard AB
Standard B (not spare part)
Standard (C)
1st oversize (0.5 mm)
2nd oversize (1.0)
Piston clearance
Withdrawal of piston
Piston orientation
Pin diameter
Fit of pin
Piston speed (average speed)
std 9.5:1
89.972-89.980
89.980-89.986
89.986-89.994
89.994-90.010
90.47 2-90.487
90. 972-90.987
0.014-0. 040
From top of block
Groove on top should be
facing the transmission
end of engine
23.996-24.000 mm
0.005-0.014 mm
Sliding fit under gentle
pressure with thumb
13 m/s at 5000 r/min
0
Piston rings
Top compression ring:
Thickness
Gap, fitted in new cylinder
Piston ring play in groove
1.73-1.75 mm
0.35-0.55 mm
0.050-0.082 mm
Second compression ring:
Thickness
Gap, fitted in new cylinder
Piston ring play in groove
1.98-1.99 mm
0.30-0.45 mm
0.040-0.072 mm
Oil scraper:
Thickness (segment)
Gap fitted in new cylinder
(segment)
Thickness, middle ring
0.58-0.64 mm
0.38-1.40 mm
2.63-2.73 mm
Connecting rods
Material
Diameter of drilling in big-end
Small-end bush installed
Max. permissible weight varia
tion per set
Forged steel
56.000-56.019 mm
24.005-24.010 mm
0.2 oz. (6 g)
Crankshaft
Material
Surface treatment
Journal hardness
No. of main bearings
020—20
Forged steel
Tenni fer-coated
HV 800 approx.
5
Engine model 1982—
9
.
Page 37
Crank pin diameter:
Standard
1st undersize
2nd undersize
3rd undersize
4th undersize
51.981-52.000 mm
51.731-51.750 mm
51.481-51-500 mm
51.237-51.250 mm
50.987-51.000 mm
Main journal diameter:
Standard
1st undersize
2nd undersize
3rd undersize
4th undersize
Radius at journal end
Max. ovality of juuiiial (uuL—
of-iuund)
Max. conicity of journals (taper)
Bearing material
Crankshaft end float
Main bearing clearance
Big-end bearing clearance
57.981-58.000 mm
57.731-57.750 mm
57.481-57.500 mm
57.237-57.250 mm
56.987-57.000 mm
2.2-2.5 mm
0.005 mm
0.005 mm
Lead-bronze
0.08-0.28 mm
0.020-0.062 mm
0.026-0.062 mm
Colour marking, main and
connecting rod bearing shells:
Standard
1st undersize
2nd undersize
Thin
Thick
Red
Yellow
White
Blue
Green
Brown
Camshaft
Number of bearings
Bearing diameter
Camshaft end float
5
28.94 mm
0.08-0.25 mm
Cam lift (at 0 valve
clearance):
Inlet
Exhaust
e
10.8 mm
11.0 mm
Valve timing (at 0
valve clearance):
Inlet
- opens
closes
Exhat
opens
closes
10
0
540
-
-
-
-‘
BTDC.
ABDC
0
46 BBDC.
18° ATDC
Valve mechanism
Valve face angle,
inlet and exhaust
Valve seat angle in
cylinder head, inlet
and exhaust
Valve seat width, inlet
and exhaust
4450
450
1-2 mm
Engine model 1982—
020—21
Page 38
Valve stem diameter:
Inlet
Exhaust
Stem to guide clearance
7.960-7.975 mm
7.955-7.980 mm
0.5 mm
Measured on valve head raised 3 mm
above seating
Valve head diameter:
Inlet
Exhaust
42.0 mm
345 mm
Valve guides:
Length
Outer diameter
Bore for valve guides in
cylinder head, diameter
46.65 mm
13.040-13.051 mm
13.000-13.018 mm
Valve springs:
Installed length
Free length
Length at full elevation
Load at full elevation
39.5 mm
43.1 mm
29.5 mm
755-815 N (170-183 Ib,
77-83 kg)
Valve depressors:
Diameter
Height
Bore in cylinder head
for valve depressors
(camshaft bearing assy.)
diameter
37.87-37.98 mm
33 mm
38.000-38.016 mm
Pallets for valve adjust—
ment:
Diameter
Thickness
15.5 mm
1.77-2.89 mm
There are 23 pallets of different
thicknesses at intervals of 0.50 mm
Materials
Exhaust valves
Inlet valve
Valve guides
Valve seats
Stellited steel
Steel (Valve stems are chromium plated)
Cast iron
Sintered metal
Valve clearances, cold engine
(311 minutes after driving the
engine warm
Inspection tolerance zone:
Inlet
Exhaust
0.006-0.012 in (0.15-0.30 mm)
0.014-0.020 in (0.35-0.50 mm)
Adjustment tolerance
zone:
Inlet
Exhaust
0.008-0.010 in (0.20-0.25 mm)
0.016-0.018 in (0.40-0.45 mm)
020—22
Engine model 1982—
Page 39
Lubrication system
Type
Pressure-lubricated points
Splash-lubricated points
Oil filter
Crankcase ventilation, fully
enclosed
I
Forced-flow circulating oil system
Gear-type oil pump with eccentric
ring gear
Camshaft, crankshaft, idler shaft,
connecting rods
Gudgeon pins, cylinder walls, valve
depressors, valve stems and timing
chain.
Full-flow type
From crankcase through valve cover
restriction to inlet manifold. Valve
cover is connected to atmospheric
pressure via the air cleaner.
-
Lubricating oil, grade:
Oil volume mci. filter
Oil pump pressure-reducing valve
opens at
Oil pressure warning light comes
on at
Oil pressure at 2.000 r/min (oil
SAE 10 W 40 at 1767°C F, 80°C)
SAE 10 W 30, 10 W 40, or
5 W 30.
If no oil meeting these speci
fications is available, oil with
a viscosity or SAE 15 W 40 or
15 W 50 may be used.
The use of additives is not
recommended.
Service SF in API-system or
Ford spec. ESE-M2C-1O1C
6 Imp. pints (3.5 litres)
3.6-5.2 bar 2
, 51-74 2
(kg/cm
)
lb/in
0.3-0.5 bar 2
(kg/cm 4.2-7.1 2
,
)
lb/in
Mm. 3.0 bar 2
(kg/cm 43 2
,
)
lb/in
Fuel system
S in g 1 e car b u i’e to r
-
Make
Model
Diameter
Metering needle
Float adjustment
Float valve
Damper oil
Guantity of oil in
damper
Zenith
175 CD
1 3/4 in
BI DS
0.63-0.67 in, (16-17 mm) between
the highest point on the float and
the mating flanges of the carburetor
housing.
0.08 in, (2.0 mm)
Automatic transmission oil
Lowest level: 0.39 in, (10 mm) below
the upper lip of the air valve sleeve.
Fast idling speed:
(Engine at normal running tempera
ture and with an 8 mm drill between
the notch iii the cam and the stop
on the choke housing):
Approx. 1100 r/min
Normal idling speed:
(engine at normal running tempe
rature and, for cats with Sweden
spec., daylight driving lights on):
850 + 50 p/mm
Engine model 1982—
020—23
Page 40
CO Content:
Sweden: Engine running at 2 000 r/min;
hoses to the vacuum control unit and
crankcase ventilation disconnected;
engine at normal running temperature
(just after cut-in of fan); daylight
driving light on:
1.75 + 0.25 %
Europe: Engine running at 850 r/min
and normal temperature; an lights off:
1.5 + 1.0 %
Fuel jet installation
position
Inserted to a distance of one in,
(2.5 mm) from the jet seating surface
Basic position of fuel needle in
vacuum piston (basic setting for ad
justment)
Temperature compensator,
opening at room tempera
ture (68°F/20°C)
Vacuum piston return
spring, colour
Shoulder of needle in line with lower
edge of vacuum piston
0.004-0.012 in, (0.1-0.3 mm)
Red
Miscellaneous
Fuel pump (mechanical)
type
Static fuel pressure at
starter speed
Fuel tank capacity
Pierburg 7.20739.00
0.17-0.25 bar (2.4-3.6 lb/in
12.8 Imp. gal. (58 1)
2
Deceleration valve, carbureted engine
with Europe specification
Setting:
1. Turn the valve screw clockwise until
engine speed ceases to increase.
2. Turn the valve screw counter-clockwise
until the engine returns to idling speed
and then turn the screw a further 1/23/4 turn clockwise from this position.
To check:
Rev up the engine and release the
throttle. Check that the engine speed
returns smoothly
after a slight delay
and surely to the idling speed.
-
-
Dashpot, carbureted engines with Sweden spec.
Checking: Retardation time from
3 000 r/min to idling speed should
be:
Setting: Idling speed when the
dashpot rod strikes the throttle
lever stop (vacuum hose
disconnected and plugged;
engine warm)
020—24
Between 3 arid 6 seconds
Single-carburetor engines: 2 600 ± 100 r/miri
Engine model 1982—