Chapter 3 Fuel Injection Equipment
7. Fuel Injection Nozzle
4LHA Serie
NO TE: Use a special socket wrench for the hole type
(the thickness of the two nozzle nuts is 15
mm (0.5906 in.)).
(4) Remove the inner parts
NOTE: Be careful not to loosen the spring seat, ad-
justing shims or other small parts.
7-4
Fuel
injection
nozzle
inspection
74.1
Washing
(1) Make sure to use new diesel oil to wash the fuel
injection nozzle parts.
(2) Wash the nozzle in clean diesel oil
with
the nozzle
cleaning kit.
Nozzle
cleaning kit
1) Diesel Kiki nozzle cleaning kit:
Type NP-8486B No. 5789-001
2) Anzen Jidosha Co., Ltd. nozzle cleaning kit:
Type NCK-001
(3) Clean off the carbon on the outside of the nozzle
body
with
a brass brush.
(4) Clean the nozzle seat
with
cleaning spray.
(5) Clean off the carbon on the tip of nozzle
with
a
piece of wood.
(6) Clean hole type nozzles
with
a nozzle cleaning
needle.
Nozzle
cleaning needle (piano
wire)
02mm dia. wire. 22mm long x 5 wires
z
c i
Part code no. 28210-000010
74.2
Nozzle
inspection
(1)
1
nspect for scratches/wear
Inspect the oil seals for abnormal scratches or wear
and replace the nozzle if the nozzle sliding surface
or seat are scratched or abnormally worn.
(2) Check nozzle sliding
Wash
the nozzle and nozzle body in clean diesel
oil,
and make sure
that
when the nozzle is pulled
out about half way
from
the body, it slides down
by itself when released.
Rotate the nozzle a
little;
replace the nozzle/nozzle
body as a set if there are some places where it does not
slide smoothly.
Hole type
3-2-45
To Next Page
Loading...
Need help?
General
