Engine: Fuel System; Test Data For Bosch Injection Pump Type 679 - Fiat Bravo Service Manual

Technical data

Engine: fuel system

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TEST DATA FOR BOSCH INJECTION P U M P , t y p e VE R 679
GENERAL TEST CONDITIONS
-Test oil: ISO 4113
-Test fluid temperature: 45° ± 1°C (reflux
-outlet • )
-Pump intake pressure: 0.35 bars
-Clockwise rotation
Regulator
Check
lever
t y p e
position
1 Max
2 Max
Max Max Max
3 Max
4 Max
5 Max
6 Max
O u t p u t O u t p u t O u t p u t O u t p u t O u t p u t O u t p u t O u t p u t 7 Max
Max
8
Max
9
10 Max
Ignition
11 Max
(enrichment)
12 Max
Elimination Elimination
of enrichment 13 of enrichment
Max
14 Max
Reflux o u t - Reflux o u t -
put ( • ) put ( • )
15 Max
Idle 16 Min
Residual
17 Min
f l o w
Arrest ( • • ) Min
18
19 1500
Delay device Delay device
(LFB) (LFB)
20 1500
Fixed i n s t a l l a t i o n advance = 0.92 m m
Electric arrest c o n t r o l : m i n i m u m operating voltage 8V. Operating voltage11-13V
M a x i m u m engine speed w i t h no l o a d : 5050 ± 5 0 / m i n .
Engine idle speed: 8 5 0 ± 2 0 / m i n .
( • ) Fuel return from pump to tank
( • • ) Carry out with electric arrest control turned off.
8
SPECIFIC TEST CONDITIONS
- Bosch 1.688.901.022 Injectors
- Nozzles: Bosch 1.688.901.922 (DNO SD 1510) set
to 130 - 133 bar
- Pipes: 2x6x450 mm.
R o t a t i o n
Advance
Transfer
check
speed
pressure
r p m m m
1000 2.4-3.8
1500
5.1-6.3
2100 8.2-9.6
600
-
-
1000
-
1500
-
2100
-
2400
-
2600
-
2800
100
-
-
400
-
525
-
600
2100
-
-
425
500
-
-
425
- -
(0.2±0.1)
-
-
Bravo- Brava @>
O u t p u t
per
element
bar
strokesmm/
m m / c y c l e
-
5.4-6.4
-
6.8-7.8
-
8.3-9-3
-
39.3-43.9
-
40.3-44.9
-
41-45
-
41.3-45.9
-
26.2-36.2
-
8.4-18.4
-
50-80
-
52-72
-
-
55-65
-
15-31 l/h
20-50 l/h
-
-
10.5-18.3
^ 3
-
-
^ 3
P. MAX Q. MAX
(10±1)
- -
TD75
Max. devia-
t i o n be- S t r o k e
t w e e n indi- r e d u c t i o n
vidual T o t a l
m m
cycle
-
-
-
-
-
-
- -
- -
-
^ 2 . 5
-
-
-
-
- -
-
-
-
-
-
-
- -
-
-
-
^ 2 . 5
-
-
-
-
-
-
-
-
0 . 7 - 0 9