VE-TYPE INJECTION PUMP — Testing of Injection Pump (Cont'd)
EF & EC-692prose procedureApplies to CD20 diesel engine (VE-type injection pump). Cold start device adjustment referenced for vehicles with cold start device.
Testing of Injection Pump (Cont'd)
Adjustment of fuel injection during idle
- 1Set control lever at idle speed position.
SEF890A - 2Furnish voltage of 12 volts to activate fuel cut solenoid valve.
- 3Measure fuel injection at specified fuel injection pump rpm.Refer to S.D.S. for idle fuel injection amount of adjustment value.
- 4If fuel injection is not within specified range, adjust by turning idle speed adjusting screw.
IMPORTANT
a. Tightening this screw may change fuel injection amount.
b. Make sure control lever angle is set at the specified range. Refer to S.D.S. If control lever angle is not within specified range, adjust by repositioning control lever on control shaft. (One serration pitch: 15°) After control lever has been repositioned, be sure to measure amount of fuel injection at idle speed again.
Adjustment of fuel injection during start
- 1Set control lever at "full-load" by pulling spring or using a suitable equipment.
SEF010C - 2Furnish voltage of 12 volts to activate fuel cut solenoid valve.
- 3Measure fuel injection at specified fuel injection rpm.Refer to S.D.S. for start fuel injection amount of adjustment value.
- 4If not within specifications, check to make sure "MS" dimension is within specification. Refer to step 25 for Injection Pump Assembly.
NOTE
For vehicles with cold start device, refer to cold start device adjustment.
Adjustment of fuel injection at max. pump rpm
- 1Set control lever at "full-load" by pulling spring or using a suitable equipment.
SEF859A - 2Furnish voltage of 12 volts to activate fuel cut solenoid valve.
- 3Measure fuel injection at specified fuel injection rpm.Refer to S.D.S. for max. pump speed fuel injection amount of adjustment value.
- 4If fuel injection is not within standard range, adjust by turning max. speed adjusting screw.
See also
S.D.S.