Replacement (Valves)

1GR-FE ENGINE MECHANICAL: CYLINDER HEAD: REPLACEMENT

REPLACEMENT

1. REMOVE VALVE GUIDE BUSH





(a) Gradually heat the cylinder head to 80 to 100°C (176 to 212°F).





(b) Place the cylinder head on a wooden block.
(c) Using SST, tap out the valve guide bush.
SST: 09201-10000
SST: 09201-01055
SST: 09950-70010
09951-07100
2. INSTALL VALVE GUIDE BUSH





(a) Using a caliper gauge, measure the bush bore diameter of the cylinder head.
Bush bore diameter:
10.295 to 10.315 mm (0.4053 to 0.4061 in.)
If the bush bore diameter of the cylinder head is greater than 10.315 mm (0.4061 in.), machine the bush bore to the dimension of 10.345 to 10.365 mm (0.4073 to 0.4081 in.).
Valve guide bush diameter:










(b) Gradually heat the cylinder head to 80 to 100°C (176 to 212°F).





(c) Place the cylinder head on a wooden block.
(d) Using SST, tap in a new valve guide bush to the specified protrusion height.
SST: 09201-10000
SST: 09201-01055
SST: 09950-70010
09951-07100
Protrusion height:
9.3 to 9.7 mm (0.366 to 0.382 in.)





(e) Using a sharp 5.5 mm reamer, ream the valve guide bush to the standard specified clearance between the valve guide bush and valve stem.
Standard oil clearance::