High Pressure Oil Pump: Service and Repair

Special Tool(s):

SPECIAL TOOL(S)

REMOVAL

1. Remove the intake manifold.
2. Remove the turbocharger adapter pipe.






3. Secure the turbocharger outlet pipe.






4. Remove the turbocharger heat shield.










5. Remove the bolts and the high-pressure oil pump cover.
^ Use a thin gasket scraper to separate the cover from the crankcase.
^ Remove and discard the press-in-place gasket.






6. Remove the bolts from the high pressure oil pump discharge pipe.






7. Using the special tool, disconnect and remove the high-pressure oil pump discharge pipe.
^ Remove and discard the D-ring seal.






8. Remove and discard the high-pressure pump O-ring seal.






9. Remove the bolts and the high-pressure oil pump.






10. Remove and discard the lower O-ring seal.

INSTALLATION






1. Install a new lower O-ring seal.






2. Install the high-pressure oil pump and bolts.






3. Install the high-pressure pump O-ring seal.






4. Install the oil pump discharge pipe.






5. Install the bolts for the oil discharge pipe.






6. Position the dial indicator with bracketry onto the oil pump drive and check the oil pump drive gear backlash.






7. Install a new D-ring seal on the high-pressure discharge pipe.






8. Install a new press-in-place gasket in the high-pressure pump cover.






9. Clean the cover mounting surface and apply sealer at the seams.






10. Install the high-pressure pump cover and bolts.






11. Install the turbocharger heat shield.

12. Position the turbocharger adapter pipe.






13. NOTE: Do not tighten the nuts and bolts until after the turbocharger is installed and attached.

Loosely install the nuts and bolts in the adapter pipe.






14. Release and position the turbocharger outlet pipe.






15. Install the intake manifold.