Replacement
2ZR-FE ENGINE MECHANICAL: CYLINDER HEAD: REPLACEMENT
1. REPLACE INTAKE VALVE GUIDE BUSH
(a) Heat the cylinder head to 80 to 100°C (176 to 212°F).
(b) Place the cylinder head on wooden blocks.
(c) Using SST and a hammer, tap out the guide bush.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
(d) Using a caliper gauge, measure the bush bore diameter of the cylinder head.
Cylinder bore diameter:
10.285 to 10.306 mm (0.4049 to 0.4057 in.)
Select a New Guide Bush (STD or O/S 0.05):
(e) If the bush bore diameter of the cylinder head is greater than 10.306 mm (0.4057 in.), machine the bush bore to the dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the cylinder head.
(f) Heat the cylinder head to 80 to 100°C (176 to 212°F).
(g) Place the cylinder head on wooden blocks.
(h) Using SST and a hammer, tap a new guide bush into the specified protrusion height.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
Protrusion height:
9.9 to 10.3 mm (0.3898 to 0.4055 in.)
(i) Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard clearance between the guide bush and valve stem.
Standard oil clearance:
0.025 to 0.060 mm (0.0010 to 0.0024 in.)
2. REPLACE EXHAUST VALVE GUIDE BUSH
(a) Heat the cylinder head to 80 to 100°C (176 to 212°F).
(b) Place the cylinder head on wooden blocks.
(c) Using SST and a hammer, tap out the guide bush.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
(d) Using a caliper gauge, measure the bush bore diameter of the cylinder head.
Diameter:
10.285 to 10.306 mm (0.4049 to 0.4057 in.)
Select a New Guide Bush (STD or O/S 0.05):
(e) If the bush bore diameter of the cylinder head is greater than 10.306 mm (0.4057 in.), machine the bush bore to the dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the cylinder head.
(f) Heat the cylinder head to 80 to 100°C (176 to 212°F).
(g) Place the cylinder head on wooden blocks.
(h) Using SST and a hammer, tap a new guide bush into the specified protrusion height.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
Protrusion height:
11.15 to 11.55 mm (0.4390 to 0.4547 in.)
(i) Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard clearance between the guide bush and valve stem.
Standard oil clearance:
0.030 to 0.065 mm (0.0012 to 0.0026 in.)
3. REPLACE RING PIN
NOTICE:
It is not necessary to remove the ring pins unless they are being replaced.
(a) Remove the ring pins.
(b) Using a plastic-faced hammer, tap in new ring pins to the specified protrusion height.
Protrusion height:
6.5 to 7.5 mm (0.26 to 0.30 in.)
4. REPLACE STUD BOLT
NOTICE:
If any of the stud bolts is deformed or the threads are damaged, replace it.
(a) Remove the stud bolts.
(b) Using an E8 "TORX" socket, install the stud bolts.
Torque : 9.5 Nm (97 kgf-cm, 84 in-lbf)