Disassembly
Thoroughly clean the area around the pressure regulator plug to prevent debris from falling into the plunger bore
when the plug is removed.
19 mm
Remove the threaded plug, spring and plunger.
Service Tip: The plunger normally can be removed by inserting one finger into the plunger bore until snug and
pulling up. If the plunger cannot be removed in this manner, the plunger is probably stuck and will require removal
of the housing for plunger removal and cleaning.
Cleaning and Inspection
Thoroughly clean all components with clean solvent. Blow dry with compressed air.
NOTE: If the plunger bore requires cleaning, remove the housing so as not to flush debris into the engine.
Inspect the plunger and plunger bore. Polished areas on the plunger and bore are acceptable.
Verify the plunger moves freely in the bore.
Assembly
19 mm
Install a new sealing o-ring on the threaded plug and lubricate with clean engine oil. Install the pressure regulator assembly.
Torque Value: 80 N*m [60 ft-lb]
