–
| Connect tandem pump tester -VAS 5187- as shown in the illustration. |
–
| Increase engine speed to 4000 rpm. |
–
| Read the pressure on the gauge: |
l
| Specification: at least 10.5 bar |
If specification is not obtained: |
–
| Clamp off return hose between fuel filter and tandem pump using hose clamp. |
–
| Increase engine speed to 4000 rpm. |
–
| Read the pressure on the gauge: |
l
| Specification: at least 10.5 bar |
If specification is now obtained: pressure is being lost at unit injectors. |
–
| Renew O-rings at unit injectors. |
If specification is not obtained: |
Note After removing pressure tester, tighten screw plug to 25 Nm. Renew the seal. |
|
|
|