Page 3625 of 4500
Fig. 340: Taping Out Guide Bush Using SST And Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST and a hammer, tap out the guide bush.
SST 09201-01055, 09950-70010 (09951-07100)
Page 3626 of 4500
Fig. 341: Heating Cylinder Head
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
12.REMOVE EXHAUST VALVE GUIDE BUSH
a. Gradually heat the cylinder head to approximately 80 to 100° C (176 to 212° F).
Page 3627 of 4500
Fig. 342: Taping Out Guide Bush Using SST And Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST and a hammer, tap out the guide bush.
SST 09201-01055, 09950-70010 (09951-07100)
Page 3628 of 4500
Fig. 343: Measuring Bush Bore Diameter Of Cylinder Head Using Caliper Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
13.INSTALL INTAKE VALVE GUIDE BUSH
a. Using a caliper gauge, measure the bush bore diameter of the cylinder head.
b. Select a new guide bush (STD or O/S 0.05).
GUIDE BUSH REFERENCE
If the bush bore diameter of the cylinder head is greater than 10.306 mm (0.4057 in.), machine the
bush bore diameter to between 10.335 and 10.356 mm (0.4068 to 0.4077 in.).
If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the
cylinder head.
Bush sizeBush bore diameter
Use STD10.285 to 10.306 mm (0.4049 to 0.4057 in.)
Use O/S 0.0510.335 to 10.356 mm (0.4068 to 0.4077 in.)
Page 3629 of 4500
Fig. 344: Measuring Intake And Exhaust Dimension
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
Different the bushes are used for the intake and exhaust.
Bush length: 34.5 mm (1.358 in.)
Page 3630 of 4500
Fig. 345: Taping Guide Bush Using SST And Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Gradually heat the cylinder head to approximately 80 to 100° C (176 to 212° F).
d. Using SST and a hammer, tap in a new guide bush to the specified protrusion height.
SST 09201-01055, 09950-70010 (09951-07100)
<0033005500520057005500580056004c005200510003004b0048004c004a004b00570003000b002b000c001d0003001c001100150003005700520003001c0011001b0003005000500003000b00130011001600190015000300570052000300130011001600
1b00190003004c00510011000c[
Page 3631 of 4500
Fig. 346: Identifying Specification Clearance Using Reamer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
e. Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard specified clearance (see
step 9) between the guide bush and valve stem.
Page 3632 of 4500
Fig. 347: Measuring Bush Bore Diameter Of Cylinder Head Using Caliper
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
14.INSTALL EXHAUST VALVE GUIDE BUSH
a. Using a caliper gauge, measure the bush bore diameter of the cylinder head.
b. Select a new guide bush (STD or O/S 0.05).
GUIDE BUSH REFERENCE
If the bush bore diameter of the cylinder head is greater than 10.306 mm (0.4057 in.), machine the
bush bore diameter to between 10.335 and 10.356 mm (0.4068 to 0.4077 in.)
If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the
cylinder head.
HINT:
Bush sizeBush bore diameter
Use STD10.285 to 10.306 mm (0.4049 to 0.4057 in.)
Use O/S 0.0510.335 to 10.356 mm (0.4068 to 0.4077 in.)