Leakage Of Injector; Atomizing Condition - Ford TRADER Workshop Manual

F1
ADJUSTING SHIM
9TGOF1·048
CORRECT
WRONG
9TGQF1·049
I I . • \
CORRECT
WRONG- WRONG
9TGOF1·0SO
9TGOF1·OS1
9TGOF1·052
F1-20
FUEL SYSTEM
3. If not within the specified pressure, adjust the starting pres-
sure by adding or removing shims.
Note
• Shims are available in thicknesses of 0.5mm (0.0197
in) to 1.45mm (0.0571 in) in 0.04mm (0.0016 in)
increments. Adding 0.04mm (0.0016 in) shim thick-
ness increases injection starting pressure approx.
471 kPa (4.8 kg/cm
2
,
68 psi).
Leakage of injector
1. Connect the nozzle to a nozzle tester.
2. Apply pressure 1,962 kPa (20 kg/cm2, 284 psi) lower than
the specified injection pressure, and verify that no fuel leaks
from the injection nozzle.
3. If fuel leaks, disassemble, clean and recheck the nozzle,
or replace it
Atomizing condition
1. Connect the nozzle on the nozzle tester.
2. Air bleed by operating the nozzle tester handle several times.
3. Keeping the pressure gauge of the nozzle tester in the non-
functioning condition, quickly lower the handle (lower the
handle as quickly as possible so that a pulsating whistling
sound can be heard). Repeat this operation several times
and check the atomizing condition.
4. Verify that the fuel is atomized uniformly and properly.
5. Verify that the injection angle and direction are normal.
6. If the atomizing condition is incorrect, it is necessary to dis-
assemble, wash and recheck the nozzle, or to replace it.
Disassembly
1. Clamp the nozzle in a vise as shown in the figure.
2. Disassemble as shown in the figure.
(DRetaining nut
@Nozzle body
@Distance piece
@Pressure pin
@Pressure spring
@Shim
0Nozzle holder