(Holset QE Models) (012-104)
If the cylinder head is removed while the air
engine coolant. Refer to the engine manual.
Since the valve plate, head and unloader
body are indexible, marking of these parts is
recommended to make sure they are
reassembled in the proper orientation.
The unloader body is installed with spring
tension. Use care when removing to prevent
personal injury. Always wear protective eye
Hold the unloader valve body down and remove the four
Remove the unloader valve body.
Remove the unloader valve spring.
Remove the unloader valve cap.
Remove the unloader body gasket and unloader valve
cap rectangular ring seal.