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12
MODEL TL100 - - BOSCH INJECTION PUMP CALIBRATION DATA
TYPE VE 4/11 F 1250 L 775 AND TYPE VE 4/11 F 1250 L 786
ASSEMBLY DATA
Pump timing on engine: delivery start 7° ± 0.5° before
TDC of cylinder 1 on compression stroke.
Plunger pre--lift for pump timing on engine: 0.04 in. (1
mm) from B.D.C. (with tools 380000228 --
380000229).
Cylinder No. 1 delivery line union on pump: marked
with letter A.
ASSEMBLY DIMENSIONS
SYMBOL
K
in. (mm)
0.126 to
0.035 to
0.134 (3.2
0.051 (0.90
to 3.4)
to 1.30)
Plunger pre--lift from BDC: mm 0
rpm: 850
rpm: 850
4. FULL- -LOAD DELIVERY WITH BOOSTER PRESSURE
rpm: 750
LDA pressure: kPa 100
5. FULL- -LOAD DELIVERY WITHOUT BOOSTER PRESSURE
rpm: 500
rpm: 335
rpm: 1360
LDA pressure: kPa 100
rpm: 100
LDA pressure kPa
Rev/min
Internal pressure supply: psi (bar)
LDA pressure
Rev/min
Advance stroke
Rev/min
LDA pressure kPa
3
Backflow cm
NOTE: The values shown above in brackets must be used for checking purposes only.
SECTION 10 - - ENGINE - - CHAPTER 1
MS
ya
yb
1.37 to 1.45
1.86 to 2.07
(34.9 to
(47.3 to
36.9)
52.5)
1. START OF DELIVERY
counterclockwise
2. ADVANCE REGULATOR STROKE
3. FUEL SUPPLY PUMP PRESSURE
Delivery per 1000 shots: cm
6. SPREAD GOVERNOR AT IDLE SPEED
Delivery per 1000 shots: cm
7. SPREAD GOVERNOR AT MAXIMUM SPEED
8. DELIVERY AT STARTING SPEED
9. TRANSFER PRESSURE PROGRESSION
10. INJECTION ADVANCE PROGRESSION
kPa
in. (mm) 0.066 to 0.082 (0.047
to 0.102) [1.7 to 2.1
11. BACKFLOW
CALIBRATION TEST CONDITIONS
Test bench conforming to ISO 4008/1 .../2
Injectors
conforming
[(1.688.901.027 with calibrated pad ∅ 0.002 in.
(0.5 mm)].
Injector pressure setting 3626 to 3670 psi
(250 to 253 bar).
Fuel supply pressure: 5.8 ± 0.72 psi (0.35 ± 0.05 bar).
Delivery pipes (conforming to ISO 4093.2):
0.2 x 0.07 x 17.7 in. (6 x 2 x 450 mm).
Graduate drain time:
Test liquid: ISO 4113 at a temperature of
113° ± 102.5 °F (45° ± 1 °C).
Advance stroke: 0.066 to 0.082 in. (1.7 to 2.1 mm)
Internal pressure: 91.4 to 100.1 psi (6.3 to 6.9 bar)
3
74 to 75
Delivery per 1000 shots: cm
3
8 to 12
Spread: cm
Delivery per 1000 shots: cm
Delivery per 1000 shots: cm
850
91.4 to 100.1
(6.3 to 6.9)
850
0.130 to 0.161
(3.3 to 4.1)
(1.2 to 2.6)]
350
100
46.9 to 85.5 (31.9 to 70.5)
to
ISO
7440--A61
30 sec.
Injection order: 1--3--4--2
3
Spread: cm
≤ 3.5 (4.0)
3
63 to 64
3
≤ 3.5 (4.0)
3
17.5 to 27.5
3
80 to 120
100
1050
107.3 to 116
119 to 127.6
(7.4 to 8.0)
(8.2 to 8.8)
100
1050
1200
0.173 to 0.205 (0.161
to 0.217) [4.4 to 5.2
(4.1 to 5.5)]
1250
100
55 to 138 (40 to 153)
--
1200
(continued)
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