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70
FIAT·850 PASSENGER CARS
Comply
with
th~
data tabulated hereafter.
Testing Range of Rebuilt Engines.
Fig. 122 • Horsepower, consumption and torque cur....es of
100G.OOO engine.
Corrected horsepower curve shown in figure refers to 8 rebul1t and
run-in engine with fan and air cleaner, without muffler.
CS .... Consumption. - CV
-=
H.P.• MT
=
Torque.
ev
40
'-
esf-
I-- l-
I
JI
I -
V
30
~
1-
-
-
11
/.
10
/
-
-
v~
b7
MT
......
-
~
15 -
t
-
,
-
10
II
II'
. .
-
-
I
4
I
6
J 00
180
160
140
p
=
atmospheric pressure
t
=
temperature of suction air.
Overhaul after Bench Test.
Horsepower Check-up.
To determine the horsepower developed
by
the
engine at various speed rates, in the conditions
shown on foot of figures 122 and 123, use the fonnula:
Corrected horsepower
=
Reading of bench indicator
760
V
273
+
t
x -
• where:
p
293
After the bench test. the engine should be over-
hauled just in case running troubles have been
detected.
Correct as required and then necessarily submit
the engine to a new bench test to make sure of
im
reguhcr operation.
1000
R. P. M.
4000
3000
1000
1000
ev
0
0 40
'-
0
es
0
.
31
/ '
:-
~
30
~
V
1/
11
-
I-
ev
Ii"
~
,-,-
- -
l- I--
I
6 10
II
f-
-
5
"""-iJ
MT
......
1I
/"
~
I--
1/
-
Ie-
4
~
10
71
-
I
Test Speed Rate
Time - Min.
Brake Load
I.p.m.
500
15'
No load
2,000
15'
Half load
2,000
5'
Full load
Total
35'
30
18
16
14
Fig. 123 • Hors.power, consumption and torque curves of
100G.OO2 engine.
Corrected horsepower curve shown in figure refers to a rebuilt and
run-in engine with fan and air cleaner, without muffler.
CS
=.
Consumption. - CV
~
H.P.• MT
=
Torque.
When bench testing a rebuilt engine. avoid
revving it up
in
an attempt to obtain horsepower
curve speeds.
Engine break-in will be completed by the Owner
who is bOlUld not to drive the car beyond the speed
rates specified for the initial use period.
1000
1000
JOOO
4000
1000
R. P. M.
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