Fiat 411 Rb Instruction Book page 25

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Cverhead valves. Timing data:
opens: before t.d.c. . . . . . . . . . . . . .
closes: after b.d.c. . . . . . . . . . . . . . .
opens: before b.d.c. . . . . . . . . . . .
Intake
Exhaust
100
51°
480
GENERAL ,
WEIGHTS AND DIMENSIONS
Wheelbase . . . . . . . . . . . . . . . . . . . . . . . . 173 m
F'°"i "ack Width (five spacings) . . . . _ . from 1,30 m to 1,70
Real" track Width (eight spacings) . . . . . . from 1,20 m to 1,90 »
Overail length . ._ . . . . . . . . . . . . . . . . . . . . . 2,89 )7
Overafi width 3 min. track . . . . . . . . . . . . . . . . . 1,65 >1
.45
max. track . . . . . . . . . . . . . . . , _ 2
3)
Max. height (at steering wheel) . . . . . . . . _ _ _ _ , _ _ 145 »
Min. ground clearance (front axle) . . . . , . . . . . . , _ 0'40 0
Weight of tractor in working order Withom "Her ' ~ ~ 1249
_ 1 with lifter . . . . . , 1330
SPEEDS AND FUEL CONSUMPTION
Speed (engine running at maximum speed rate):
--.1stgear........ . . . . . , . . . . . . . ..23k
— 2nd gear . . . , . . . . . . . . . . . . . . . . . . . 4,2
~ 3rd gear . . . . . . . . . . . . . . , , _ _ _ _ _ _ _ 5'7
--- 4th gear . . . . . . . . . . . . . . . . . . . . _ _ _ 3,5
——~ 5th gear . . . . . . . . . . . . . . . . . . . . . _ . , 15,4
*6?" Sear - - ~ - - . . . . . . . . . . . . . . . . . , 24,2
e low reverse . . . . . . . . . . . _ _ _ _ _ , _ _ _ _ _ 3_4
—-~ high reverse . . . . . . . . . . . . . . . . _ _ , _ _ _ 12:5
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m (51.2" to 67";
70"
(47.2" to 75")
(1.4
(2.6
(4.2
(5.3
(9.5
(15
(2.1
(1.3
(11:-ts")
(ss.4")
(96.50
(51.50
(1 5.1")
kg (2734 lbs.)
kg (2933 tbs.)
m.p.i1.)
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" ¢ ~ . ¢ ¥ ¢ ~ _ , \ / \ . 1
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Approximate fuel consumption (average farmland works) 6 to 7 kgm (13.2 to 1&4 lbah)
ENGINE
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105,015
No. of cylinders . . . . . . . . . . . . . . . . _ , . _ _ ,
~ 4
Bore and stroke . . . . . . . . . . . . . . . . . . . 82x90 mm (3 228" x3 543")
Total piston displacement . . . . . . . . . . . . . . . . . . 1901 Cc
Compression ratio . . . . . . . . . . . . . . . . . . . . . . 75 (0 1
R-P1M- ¢°"e$P0"di"9 to max. output under load . . . . . . _ 2500 R PM
42 '
closes: after t.d.c. . . . . . . . . . . . . . . . . i 11°
Vaive~to~roclcer ciearance (for timing checks) . . . . . . . . . 0,450 mm (.01'I")
Valve-to-rocker clearance with cold engine for normal operation
(intake and exhaust). . . . . . . . . . . . . . . . . . . . 0,150 1» (.0059")
FEED g
Mechanical fuel pump.
Carburetor: Solex C 26 NH, with easy starting device (choke).
€arbu retor data:
Primary Venturi diameter . . . . . . . . . . . . . . . . . . . . . . . 21 mm
Main iet diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,25 »
idling speed jet diameter . . . . . . . . . . . . . . . . . . . . _ . . 0,60 »
Emuisiori air iet diameter . . . . . . . . . . . . . . . . . . . . . . . 1,25 »
Needle seat diameter . . . . . . . . . . . . . . . . . . . . . . . . . 1,30 1»
Air intake through oi! bath air cleaner.
Speed governor operating over the entire engine r.p.m. range, adjusted for the
following rates:
-— max. engine speed under load . . . . . . . . . . . . . . . . . 2500 RPM
W max. engine speed with no load . . . . . . . . . . . . . . . . 2580 RPM
IGNITION
By battery, coil and camshaft-driven distributor.
Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1~3-4-2
Static advance . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°
Centrifugal automatic advance . . . . . . . . . . . . . . . . . . . . 24"_-oi: 2°
Breaker contacts gap . . . . . . . . . . . . . . 0,42 to 0,48 mm (.0i6" to .019")
Spark plugs M 14-12,/240:
Spark plug gap . . . . . . . . . . . . . . . 0,50 to 0,60 mm (.020" to .024")
i.UBRiCATiON
Forced by gearetype pump.
Oii cleaning: by gauze filter on pump intake and repiaceabie cartridge hy~pass filter.
Lubrication pressure (auiomaticatly adjusted by
a vatve) with hot engine at normal r.p.m. rate . 3 to 3,5 kg/cm: (42.7 to 49.8 p.s.i.)
' 43