Tech Tips
w/ Canister Pump Module:
Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly or cylinder head LH Click here.
INSTALL SPARK PLUG TUBE
Note
When using a new cylinder head, the spark plug tubes must be replaced.
| *1 | Standard Application Width |
| *a | 9.0 to 15.0 mm (0.354 to 0.591 in.) |
Apply adhesive onto the shaded area of a new spark plug tube.
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent. |
| Standard application width |
|---|
| 1.0 to 3.0 mm (0.0394 to 0.118 in.) |
Note
Install the spark plug tube within 3 minutes after applying adhesive.
Be careful not to deform the spark plug tube.
Be careful not to expose the seal to coolant for at least 1 hour after installing it.
| *1 | Standard Protrusion Height |
| *2 | Cylinder Head Casting Surface |
Using a wooden block and hammer, tap in the spark plug tube to the specified protrusion height.
| Standard protrusion height |
|---|
| 72.9 mm (2.87 in.) |
Note
To avoid tapping in the spark plug tube too far, measure the protrusion height while tapping it.
INSTALL NO. 1 STRAIGHT SCREW PLUG
Using a 10 mm hexagon wrench, install 4 new gaskets and the 4 No. 1 straight screw plugs.
INSTALL NO. 2 STRAIGHT SCREW PLUG
Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 No. 2 straight screw plugs.
INSTALL UNION
Apply adhesive to the union of the cylinder head.
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent |
Using a union nut wrench (12 mm), install the union to the cylinder head as shown in the illustration.
| *A | Bank 1 | *B | Bank 2 |
INSTALL STUD BOLT
Note
If the stud bolt is deformed or the threads are damaged, replace it.
Using E6 and E8 "TORX" socket wrenches, install the stud bolts.
| *a | Rear Side LH | *b | Intake Side RH |
| *c | Rear Side RH | *d | Exhaust Side RH |
| *e | Exhaust Side LH | *f | Intake Side LH |
INSTALL VALVE SPRING SEAT
Install the valve spring seats to the cylinder head.
INSTALL VALVE STEM OIL SEAL
| *1 | Gray |
| *2 | Black |
| *a | Intake Side |
| *b | Exhaust Side |
Apply a light coat of engine oil to new valve stem oil seals.
Note
Pay attention when installing the intake and exhaust valve stem oil seals. For example, installing the intake valve stem oil seal into the exhaust side or installing the exhaust valve stem oil seal to the intake side can cause installation problems later.
Tech Tips
The intake valve oil seals are gray and the exhaust valve oil seals are black.
| *a | CORRECT |
| *b | INCORRECT |
Using SST, push in the oil seals.
Note
Failure to use SST will cause the seal to be damaged or improperly seated.
INSTALL EXHAUST VALVE
| *a | 40 mm (1.57 in.) or more |
Apply a sufficient coat of engine oil to the tip area of the exhaust valve shown in the illustration.
Install the exhaust valve, inner compression spring and valve spring retainer to the cylinder head.
Note
Install the same parts in the same combination to their original locations.
Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.
Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Be careful not to damage the retainer.
INSTALL INTAKE VALVE
| *a | 40 mm (1.57 in.) or more |
Apply a sufficient coat of engine oil to the tip area of the intake valve shown in the illustration.
Install the intake valve, inner compression spring and valve spring retainer to the cylinder head.
Note
Install the same parts in the same combination to their original locations.
Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.
Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Be careful not to damage the retainer.