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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 the injection nozzle (2) jetted with the proper
injectionpressureto theinjectionpumppressuretest-
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 V alve 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 the injection nozzle (2) jetted with the proper
injectionpressureto theinjectionpumppressuretest-
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 c rankshaft to bottom dead center . ( turn the
crankshaft 1.57 rad. (90°) clockwise from fuel timing
set point)
7. If the pressure drop for 5 seconds exceeds the allow-
able limit, replace the delivery v alve 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