Remove the down pipe from the Exhaust
Back Pressure Valve outlet.
Remove the actuator arm from the ball
located under the Exhaust Back Pressure Valve housing by sliding
the sleeve back and pull the ball from the socket.
Remove the three 5/16" 12-point bolts
from the Exhaust Back Pressure Valve housing.
Remove the Exhaust Back Pressure Valve housing from the the
turbo housing.
Grind off and drive out the two rivets
that hold the butterfly plate to the shaft. Remove the
butterfly plate.
Pull the shaft from the housing.
Drive the shaft bushing out of the lower housing using an old
socket (drive it into the housing).
Drive a 20mm freeze plug into the
shaft bore. I used a socket to drive it in.
The Exhaust Back Pressure Valve
housing is ready to be reinstalled. Re-attach using the
three 5/16" bolts and reclamp the down pipe.
Unplug the actuator wires located on
the driver's side, near the base of the turbo compressor
housing. It is the only two-wire connecting plug.
