Injection Pump Adjustment - Toyota 1PZ Repair Manual

Injection Pump Adjustment

Preparations of
Test nozzle type
pump tester
Test nozzle opening pressure
Injection pipe
Outer diameter
Inner diameter
Length
Minimum bending radius
Fuel temperature
Fuel feeding pressure
Full load
injection volume
pre-setting
1PZ
1HZ
1HD-T
(w/o BACS)
1HD-T (w/ BACS)
Maximum speed
pre-setting
1PZ
1HZ
1HD-T
Pump inner
pressure
1PZ
1HZ
1HD-T
(w/o BACS)
1HD-T (w/ BACS)
SERVICE SPECIFICATIONS
Adjusting
Item
lever position
Maximum
speed side
Maximum
speed side
Maximum
speed side
Maximum
speed side
Adjusting
Item
lever position
Maximum
speed side
Maximum
speed side
Maximum
speed side
Pump rpm
Item
500
2,000
500
2,000
400
1,900
2,200
400
2,200
Fuel System
DN12SD12
145-155 kg/cm
(2,062 - 2,205 psi, 1 4,220 - 1 5,200 kPa)
6.0 mm
2.0 mm
840 mm
25 mm (0.98 in.) or more
40-45°C
2
0.2 kg/cm (2.8 psi, 20 kPa)
No. of
Pump rpm
measuring
strokes
1,200
200
1,200
200
1,800
200
1,800 200
No. of
Pump rpm measuring
strokes
2,300
200
2,300
200
2,200
200
Inner pressure
2.45 - 3.05 (35 - 43, 240 - 299)
6.4-7.0 (91 -100, 628-686)
2.5 -3.1 (36-44, 245-304)
7.1 -7.7 (101-110, 696-755)
2.2-3.1 (31 -44, 216-304)
8.1 -8.4 (115-119, 794-824)
9.0 (128, 883) or less
2.7-3.6 (38-51, 265-353)
8.7-9.0 (124-128, 853-883)
2
0.236 in.
0.079 in.
33.07 in.
Injection volume
cc (cu in.)
11.78-12.18 (0.72-0.74)
11.80-12.20 (0.72-0.74)
13.58-14.18 (0.83-0.87)
13.14-13.74 (0.80-0.84)
Injection volume
cc (cu in.)
4.0-6.0 (0.24-0.37)
3.0-5.0 (0.18-0.31)
3.0-5.0 (0.18-0.31)
2
kg/cm (psi, kPa)
A-13