Carrier V2203-DI - Pump Pressure and Delivery Valve Seal Tests

62--11362 5--2
5.1 CHECKING AND ADJUSTING
1. Injection Pump Pressure
Tester
2. Injection Nozzle
3. Protective Cover
5.1.3 Pump Pressure Test
1. Remove the engine fuel speed solenoid.
2. Remove the injection pipes and nozzle.
3. Connect a pressure tester to the fuel injection pump.
4. Connect theinjectionnozzle(2)jettedwiththeproper
injectionpressuretotheinjectionpumppressuretest-
er (1).
5. Using the starter, rotate the crankshaft until the fuel
pressure is built up.
6. If the pressure does not build up, replace the pump
element with a new one and test again.
Fuel Pump
Pressure Test
Factory
Specification
18.63 MPa
190 kgf/cm
2
2702 psi
5.1.4 Delivery Valve Fuel Seal
1. Remove the engine fuel speed solenoid.
2. Remove the injection pipes and nozzle.
3. Connect a pressure tester to the fuel injection pump.
4. Connect theinjectionnozzle(2)jettedwiththeproper
injectionpressuretotheinjectionpumppressuretest-
er (1).
5. Using the starter, rotate the crankshaft until the fuel
pressure is built up.
6. Release the pressure in the delivery chamber by ro-
tating the crankshaft to bottom deadcenter. (turn the
crankshaft 1.57 rad. (90°) clockwise from fuel timing
set point)
7. Ifthepressure dropfor 5 seconds exceeds theallow-
able limit, replace the delivery valve or pump assem-
bly.
Delivery Valve
Fuel Seal
Factory
Specification
10 seconds
18.63 to 17.65 MPa
190 to 180 kgf/cm
2
2702 to 2560 psi
Allowable
Limit
5 seconds
18.63 to 17.65 MPa
190 to 180 kgf/cm
2
2702 to 2560 psi
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