INSTALL FUEL INJECTOR SEAL
| *1 | Clean Area |
Apply engine conditioner to the injector area shown in the illustration. Using a piece of cloth, clean carbon deposits from the injector and its grooves.
Note
Do not clean the tip of the injector.
Do not use a wire brush to clean the injector.
If an injector is dropped or the tips of the injectors are struck, replace it with a new one.
| *1 | SST (Guide) |
| *2 | Tapered Inner Portion |
Apply engine oil to the injector contact surface of SST (guide). Then attach SST (guide) to the injector with the tapered inner portion facing the tip of the injector, as shown in the illustration.
| *1 | Fuel Injector Seal |
| *2 | SST (Holder) |
| *a | CORRECT |
| *b | INCORRECT |
Install a new injector seal to SST (holder).
Note
Be careful not to install the injector seal to SST (holder) at an angle. Doing so will stretch the seal and correcting this problem is very complicated.
| *1 | SST (Holder) |
| *2 | SST (Guide) |
Install SST (holder with injector seal) to the tip of the injector. Slide the seal downward into the injector groove (injector connector side) with your fingers, as shown in the illustration.
Tech Tips
Check that the seal covers the circumference of the injector groove as shown in the illustration.
| *1 | SST (Holder) |
| *2 | SST (Guide) |
| *3 | Injector Seal |
| *a | Gently Press |
| *b | Slowly Slide |
| *c | CORRECT |
| *d | INCORRECT |
Using SST (holder), gently press downward on the injector seal (injector connector side). Then slowly slide SST (guide) toward the injector tip to settle the seal into the injector groove.
Note
Be careful that the seal is not pinched between SST (guide) and the injector groove. Replace the seal if it becomes damaged.
Tech Tips
When using SST (guide) to settle the seal into the groove, SST (guide) only needs to be slid upward to the position labeled A in the illustration.
After using SST (guide) to settle the seal into the groove, return SST (guide) to its position labeled B in the illustration.
| *1 | Fuel Injector Seal |
| *2 | SST (Holder) |
| *a | CORRECT |
| *b | INCORRECT |
Install a new injector seal to the injector groove (injector tip side) as shown in the illustration.
| *1 | SST (Holder) |
| *2 | SST (Guide) |
| *3 | Welded Groove |
| *4 | Injector Seal |
Check that the seal covers the circumference of the injector groove as shown in the illustration.
Note
Make sure that the seal does not slip into the welded groove of the injector shown in the illustration. If it does, replace it with a new one.
| *1 | SST (Guide) |
| *2 | Injector Seal |
Slowly slide SST (guide) toward the tip of the injector. When the injector contact surface of SST (guide) aligns with the seal (injector connector side) as shown in the illustration, hold the position for 5 seconds or more to fully align the seal into the injector groove.
Note
Be careful that the seal is not pinched between SST (guide) and the injector groove. Replace the seal if it becomes damaged.
Tech Tips
Set SST (guide) so that its bottom surface and seal are flush.
If there is difficulty in sliding SST upward, slowly wiggle it from side to side while sliding it up the injector little by little.
| *1 | SST (Holder) |
| *2 | SST (Guide) |
| *3 | Injector Seal |
| *a | Gently Press |
| *b | Slide |
| *c | CORRECT |
| *d | INCORRECT |
Using SST (holder), gently press downward on the injector seal (injector tip side). Then slowly slide SST (guide) toward the injector tip to settle the seal into the injector groove.
Note
Be careful that the seal is not pinched between SST (guide) and the injector groove. Replace the seal if it becomes damaged.
| *1 | SST (Guide) |
| *2 | Injector Seal |
Slowly slide SST (guide) toward the tip of the injector. When the injector contact surface of SST (guide) aligns with the seal (injector tip side) as shown in the illustration, hold the position for 5 seconds or more to fully align the seal into the injector groove.
Note
Be careful that the seal is not pinched between SST (guide) and the injector groove. Replace the seal if it becomes damaged.
Tech Tips
Set SST (guide) so that its bottom surface and the seal are flush.
If there is difficulty in sliding SST upward, slowly wiggle it from side to side while sliding it up the injector little by little.
| *a | Normal |
| *b | Protruding |
| *c | Deformed |
| *d | CORRECT |
| *e | INCORRECT |
After installing the seals, check that they are not scratched, deformed or protruding from the injector groove.
Note
If a seal is scratched, deformed or protruding from the groove, replace it with a new one.
INSTALL FUEL INJECTOR ASSEMBLY
Install a new O-ring, new backup rings (No. 1, No. 2 and No. 3) and new E-ring to the fuel injector as shown in the illustration.
| *1 | No. 1 Backup Ring | *2 | No. 2 Backup Ring |
| *3 | No. 3 Backup Ring | *4 | O-Ring |
| *5 | E-Ring | - | - |
| *a | Alignment Opening | *b | Overlapped |
| *c | Stretched | *d | CORRECT |
| *e | INCORRECT | - | - |
Note
Check that there is no foreign matter or damaged areas in the O-ring groove of the injector.
Check that the No. 1 and No. 2 backup rings are installed in the correct direction.
Make sure that the backup rings and O-ring are installed in the correct order.
Check that the alignment openings of the backup rings are not overlapped or stretched as shown in the illustration.
After installing the O-ring, check that it is not contaminated with foreign matter and is not damaged.
Install the injector nozzle holder clamp.
Apply gasoline to the O-ring. Install the nozzle holder clamp by aligning the protruding part of the clamp to the notch of the delivery pipe.
Note
Make sure that there is no gap between the delivery pipe and clamp.
Check that there is no foreign matter or damage to the injector insertion hole of the delivery pipe.
Insert the injector straight into the delivery pipe without tilting it.
INSTALL NO. 1 FUEL DELIVERY PIPE SUB-ASSEMBLY
Install a new injector vibration insulator to the cylinder head.
Apply lubricant to the installation hole of the injector.
| *a | Nut can be attached |
Insert the stud bolt into the fuel delivery pipe until the screw threads protrude enough so that a nut can be attached.
Note
If an injector is dropped or the tips of the injectors are struck, replace it with a new one.
Check that there is no foreign matter or damage to the injector insertion hole of the delivery pipe.
When inserting the fuel delivery pipe, push it in evenly without tilting it.
| *1 | Nut |
| *2 | Bolt |
| *a | Front |
Install the No. 1 fuel delivery pipe by uniformly tightening the 2 bolts and 2 nuts in several passes in the order shown in the illustration.
Connect the 3 injector connectors and 2 wire harness clamps.
| *1 | Wire Harness |
Connect the fuel pressure sensor connector and attach the clamp.
Note
Make sure the wire harness of the fuel pressure sensor passes under the area labeled A as shown in the illustration.
Do not pull the wire harness of the fuel pressure sensor excessively.
INSTALL NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY
Install new injector vibration insulators to the cylinder head.
Apply lubricant to the installation holes of the injectors.
| *a | Nut can be attached |
Insert the stud bolt into the delivery pipe until the screw threads protrude enough so that a nut can be attached.
Note
If an injector is dropped or the tips of the injectors are struck, replace it with a new one.
Check that there is no foreign matter or damage to the injector insertion hole of the delivery pipe.
When inserting the fuel delivery pipe, push it in evenly without tilting it.
| *1 | Nut |
| *2 | Bolt |
| *a | Front |
Install the No. 2 fuel delivery pipe by uniformly tightening the 2 bolts and 2 nuts in several passes in the order shown in the illustration.
Connect the 3 injector connectors and 3 wire harness clamps.
INSTALL NO. 3 FUEL PIPE SUB-ASSEMBLY
Install new O-rings, new backup rings (No. 1, No. 2 and No. 3) and new E-rings to the No. 3 fuel pipe as shown in the illustration.
| *1 | No. 1 Backup Ring | *2 | No. 2 Backup Ring |
| *3 | O-Ring | *4 | No. 3 Backup Ring |
| *5 | E-Ring | - | - |
| *a | Alignment Opening | *b | Overlapped |
| *c | Stretched | *d | CORRECT |
| *e | INCORRECT | - | - |
Note
Check that there is no foreign matter or damaged areas in the O-ring groove of the injector.
Check that the No. 1 and No. 2 backup rings are installed in the correct direction.
Make sure that the backup rings and O-ring are installed in the correct order.
Check that the alignment openings of the backup rings are not overlapped or stretched as shown in the illustration.
After installing the O-ring, check that it is not contaminated with foreign matter and is not damaged.
Check that the fuel pipe installation end is not contaminated with foreign matter and is not damaged.
| *a | No Gap |
|
Front |
Apply gasoline to the O-ring.
Press the fuel pipe and delivery pipe together by hand until there is no gap between them. Then install the No. 3 fuel pipe with the 4 bolts.
Note
Do not install the No. 3 fuel pipe at an angle.
INSTALL FUEL PUMP ASSEMBLY