Fuel Injector: Service and Repair
REMOVAL AND INSTALLATION
REMOVAL SERVICE POINT
HIGH PRESSURE FUEL HOSE DISCONNECTION
Bleed the residual pressure within the fuel pipe line so as to prevent the flow of fuel.
CAUTION: Cover the hose connection with rags to prevent splash of fuel that could be caused by some residual pressure in the fuel pipe line.
INSTALLATION SERVICE POINTS
>A
(1) Apply a small amount of new engine oil to the O-ring.
CAUTION: Do not let the engine oil get into the fuel rail.
(2) While turning the injector to the left and right, install it to the fuel rail.
(3) Check to be sure that the injector turns smoothly. If it does not turn smoothly, the O-ring may be trapped, remove the injector and then reinsert it into the fuel rail and check again.
>B< FUEL PRESSURE REGULATOR INSTALLATION
(1) Apply a small amount of new engine oil to a new O-ring and insert it to the fuel rail carefully.
CAUTION: Do not let the engine oil get into the fuel rail.
(2) If the fuel pressure regulator does not move smoothly, the O-ring may be folded. Then, remove the regulator to check the O-ring for damage.
(3) Tighten the regulator to the specified torque.
Tightening torque: 9 Nm (7 ft.lbs.)
>C< FUEL PIPE / HIGH-PRESSURE FUEL HOSE CONNECTION
Apply a small amount of new engine oil to the fuel pipe and high pressure fuel hose union and then insert, being careful not to damage the O-ring.
CAUTION: Do not let the engine oil get into the fuel rail.