Kubota GR1600EU Workshop Manual page 104

GR1600EU, WSM
Fuel Injection Pressure
1. Set the injection
No. 07909-31361).
2. Slowly move the tester handle to measure the pressure at which
fuel begins jetting out from the nozzle.
3. If the measurement is not within the factory specifications,
replace the adjusting washer (1) in the nozzle holder to adjust it.
Fuel injection pressure Factory specification
(Reference)
• Pressure variation with 0.01 mm (0.0004 in.) difference of
adjusting washer thickness.
Approx. 240 kPa (2.4 kgf/cm
(1) Adjusting Washer
Valve Seat Tightness
1. Set the injection nozzle to a nozzle tester (Code No.
07909-31361).
2. Raise the fuel pressure, and keep at 12.8 MPa (130 kgf/cm
1850 psi) for 10 seconds.
3. If any fuel leak is found, replace the nozzle piece.
Valve seat tightness Factory specification
1-S18
nozzle to a nozzle
13.7 to 14.7 MPa
140 to 150 kgf/cm
2000 to 2130 psi
2
, 34 psi)
9Y1210595ENS0019US0
No fuel leak at
12.8 MPa
130 kgf/cm
1850 psi
9Y1210595ENS0020US0
ENGINE
tester (Code
2
2
,
2
KiSC issued 11, 2013 A