Replacement
2GR-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 intake valve guide bushes.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
(d) Using a caliper gauge, measure the intake valve guide 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, tap in new intake valve guide bushes to the specified protrusion height.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
Protrusion height:
9.30 to 9.70 mm (0.3661 to 0.3819 in.)
(i) Using a sharp 5.5 mm reamer, ream the valve guide bushings to obtain the specified clearance.
Standard oil clearance:
0.025 to 0.060 mm (0.0010 to 0.0023 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 hammer, tap out the exhaust valve guide bushes.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
(d) Using a caliper gauge, measure the exhaust valve guide 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, tap in new exhaust valve guide bushes to the specified protrusion height.
SST : 09201-10000
09201-01050
SST : 09950-70010
09951-07100
Protrusion height:
9.30 to 9.70 mm (0.3661 to 0.3819 in.)
(i) Using a sharp 5.5 mm reamer, ream the valve guide bushings to obtain the specified clearance.
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 pin unless it is being replaced.
(a) Using a plastic hammer, tap in new ring pins to the specified protrusion height.
Specified protrusion height:
2.5 to 3.5 mm (0.098 to 0.138 in.)
4. REPLACE STUD BOLT
NOTICE:
If the stud bolt is deformed or the threads are damaged, replace it.
(a) Using E6 and E8 "TORX" sockets, install the stud bolts.
Torque : 10 Nm (102 kgf-cm, 7 ft-lbf for bolts A and B)
Torque : 4.0 Nm (41 kgf-cm, 35 in-lbf for bolt C)
5. REPLACE STRAIGHT PIN
NOTICE:
If the straight pin is deformed, replace it.
(a) Using a plastic hammer, tap in new straight pins as shown in the illustration.
Protrusion height:
17.5 to 19.5 mm (0.689 to 0.768 in.)