Fuel Injector: Service and Repair

Components For Removal And Installtion Part 1 Of 2:

Components For Removal And Installtion Part 2 Of 2:

COMPONENTS FOR REMOVAL AND INSTALLATION

INJECTORS REMOVAL
1. REMOVE AIR CLEANER HOSE
2. REMOVE INTAKE AIR CONNECTOR
3. REMOVE FUEL PRESSURE REGULATOR
4. DISCONNECT FUEL INLET PIPE

CAUTION: Catch leaking fuel in a container.

5. REMOVE FUEL PIPE
6. DISCONNECT INJECTOR CONNECTORS





7. REMOVE DELIVERY PIPES AND INJECTORS

NOTICE: Be careful not to drop the injectors when removing the delivery pipes.

(a) Remove the 4 bolts and delivery pipes together with the 6 injectors
(b) Remove the 4 spacers from the intake manifold.
(c) Pull out the 6 injectors from the delivery pipes.
(d) Remove the 2 O-rings and 2 grommets from each injector.

INJECTORS INSTALLATION

1. TEMPORARILY INSTALL INJECTORS AND DELIVERY PIPES





(a) Install 2 new grommets to each injector.
(b) Apply a light coat of spindle oil or gasoline to 2 new O-rings and install them to each injector.





(c) While turning the injector clockwise and counter clockwise. push it to the delivery pipes. Install the 6 injectors.
(d) Position the injector connector outward.

(e) Place the 4 spacers in position on the intake manifold.
(f) Place the delivery pipes with the 6 injectors in position on the intake manifold.





(g) Temporarily install the 4 bolts holding the delivery pipes to the intake manifold.





(h) Check that the injectors rotate smoothly.

HINT: If injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. Replace the O-rings.

(i) Position the injector connector outward.
2. CONNECT INJECTOR CONNECTORS





3. INSTALL FUEL PIPE AND TIGHTENING DELIVERY PIPE HOLDING BOLTS
(a) Install the fuel pipe with 4 new gaskets and the 2 union bolts.

Torque: 34.3 N.m (350 kgf.cm, 25 ft.lbf)

(b) Tighten the 4 bolts holding the delivery pipes to the intake manifold.

Torque: 13 N.m (130 kgf.cm, 10 ft.lbf)





4. CONNECT FUEL INLET PIPE
(a) Temporarily install the union and 2 new gaskets. and connect the fuel pipe.
(b) Install the clamp bolt.

Torque: 8 N.m (80 kgf.cm, 71 in.lbf)

(c) Tighten the union bolt.

Torque: 34.3 N.m (350 kgf.cm, 25 ft.lbf)

5. INSTALL FUEL PRESSURE REGULATOR





6. VISUALLY INSPECT AIR ASSIST LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
7. INSTALL INTAKE AIR CONNECTOR
8. INSTALL AIR CLEANER HOSE
9. CHECK FOR FUEL LEAKS