Hino Motors J08E-VC Workshop Manual page 225

EN07–24
Upper body
Upper body
Cylinder head
FUEL SYSTEM (J08E)
INSPECTION
1.
Megohmmeter (1)
! CAUTION
Never measure between the terminals, or the injector will be dam-
aged.
SAPH011060700053
(2)
(3)
SAPH011060700054
2.
(1)
! CAUTION
•
•
3.
(1)
NOTICE
•
Nozzle seat
•
(2)
SAPH011060700055
INSPECTING THE RESISTANCE
Using a 1,000V megohmmeter, measure the insulation resistance
between either of the 2 terminals (no polarity) to which the injector
harness is connected and the upper body of the injector.
Standard value
(Normal temperature)
Using a circuit tester, measure the resistance between terminals.
Standard value
(at a temperature of 20C {68F})
The resistance values of (1) and (2) exceed the standard value,
replace the injector.
CLEANING THE INJECTOR
Use clean clothes to remove sludge adhered to the terminal part and
its perimeter.
Use clean clothes to wipe off sludge without using any deter-
gent.
Use of detergent causes it to penetrate, which may lead to elec-
tric failure.
CLEANING THE INSIDE OF THE NOZZLE SEAT
If sludge sticks to the inside of the nozzle seat, spray a detergent over
it, wipe it off with a waste cloth, and wash it out with the detergent.
If sludge sticks hard to the inside of the nozzle seat, remove it
with brush and a detergent.
It is advisable to perform a contact check using red lead primer.
Make sure that the inside of the nozzle seat is free of sludge or foreign
matters.
10 M or more
(Use a 1,000V megohmmeter.)
0.37-0.57 