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CHECK AND MAINTENANCE
11. Check points of every 1500 hours
3. If the measurement is not within the service
specifications, replace the adjusting washer in the
nozzle holder to adjust it.
Fuel injection pres-
Service specifi-
sure
cation
11.3 Checking valve seat tightness
1. Set the injection nozzle to a nozzle tester.
2. Raise the fuel pressure, and keep at 12.75 MPa
2
(130 kgf/cm
, 1849 psi) for 10 seconds.
Valve seat tight-
Service specifi-
ness
cation
3. If any fuel leak is found, replace the nozzle piece.
12. Check points of every 3000
hours
12.1 Checking injection timing
NOTE
• The
liquid
gasket
assembling.
• Shims are available in thickness of 0.20 mm
(0.0079 in.), 0.25 mm (0.0098 in.), 0.30 mm
(0.012 in.), 0.35 mm (0.014 in.) and 0.175 mm
(0.00689
in.).
Combine
adjustments.
• Addition or reduction of shim (0.025 mm,
0.00098 in.) delays or advances the injection
timing by approx. 0.0044 rad (0.25°).
• In disassembling and replacing the injection
pump, be sure to use the same number of new
shims with the same thickness.
• The 0.175 mm (0.00689 in.) thick shim is coated
only on the lower face. Therefore, do not use
the 0.175 mm (0.00689 in.) thick shim as the top
05-E4B SERIES,05-E4BG SERIES
13.73 to 14.70 MPa
2
140.0 to 150.0 kgf/cm
1992 to 2133 psi
No fuel leak at
12.75 MPa
2
130.0 kgf/cm
1849 psi
is
not
required
for
these
shims
for
shim of the combination (injection pump side),
because this can cause oil leakage.
• Refer to figure of the shim to check the
thickness of the shims.
• The injection timing might be changed by the
application.
(1) Timing line
(2) Alignment mark
(3) Delivery valve holder
(4) Shim (Soft metal gasket
shim)
(5) Two-holes: 0.20 mm
(0.0079 in.)
Two-holes: 0.175 mm
(0.00689 in.)
1. Remove the injection pipes.
2. Remove the engine stop solenoid.
3. MAINTENANCE
(6) One-hole: 0.25 mm
(0.0098 in.)
(7) Without hole: 0.30 mm
(0.012 in.)
(8) Three-holes: 0.35 mm
(0.014 in.)
3-17
KiSC issued 03, 2023 A
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