Cylinder Boring - Toyota 5R 1969 Repair Manual

Cylinder Boring

1. Select the cylinder with the most
w e a r first to determine the o v e r ­
size piston to be used.
Th e size and the piston diameter
a re marked
also on the piston head.
F i g . 3-22 Piston with Pin
Piston specification fo r 3 R - B and
3 R - C :
S T D :
Mark: 87.965
Piston diameter:
87.960 : » 87.970 mm
(3.4630 ~ 3.4 634")
Mark: 87.975
Piston diameter:
87.970 - 87.980 mm
(3.4634 - 3 .4 638")
Mark: 87.985
Piston diameter:
87.980
(3.4638 ~ 3 .4 642")
O/S-010:
Mark: 88.220
Piston diameter:
88.214 ~ 88.224 mm
(3.4730 - 3 .4 734")
Mark: 88.230
Piston diameter:
88.224 ~ 88.234 mm
(3.4734 ~ 3 .4 7 3 8 ")
Mark: 88.240
Piston diameter:
88.234 ~ 88.244 mm
(3.4738 ~ 3 .4 742")
O/S-020:
Mark: 88.475
Piston diameter:
88.468 ~ 88.478 mm
(3.4830 - 3 .4 8 3 4 ")
on the package and
V4677
- 87.990 mm
E N G IN E - Major S e r v ic e
Mark: 88.485
Piston diameter:
88.478 ~ 88.488 mm
(3.4834 ~ 3 .4 838")
Mark: 88.495
Piston diameter:
88.488 ~ 88.498 mm
(3.4838 - 3 .4 842")
O /S-030:
Mark: 88.725
Piston diameter:
88.722 ~ 88.732 mm
(2.4930 - 3 .4 9 3 4 ")
Mark: 88.735
Piston diameter:
88.732 ~ 88.742 mm
(3.4934 - 3 .4 9 3 8 ")
Mark: 88.745
Piston diameter:
88.742 ~ 88.752 mm
(3.4938 ~ 3 .4 9 4 2 ")
C /S -0 4 0 :
Mark: 88.980
Piston diameter:
88.976 ~ 88.986 mm
(3.5030 * 3 .5 0 3 4 ")
Mark: 88.990
Piston diameter:
88.986 ~ 88.996 mm
(3.5034 !? 3 .5 0 3 8 ")
Mark: 89.00
Piston diameter:
88.996 ~ 89.006 mm
(3.5038 » 3 .5 0 4 2 ")
O /S -050:
Mark: 89.235
Piston diameter:
89.230
(3.5130 » 3 .5 1 3 4 ")
Mark: 89.245
Piston diameter:
89.240 ~ 89.250 mm
(3.5134 - 3 .5 1 3 8 ")
Mark: 89.255
Piston diameter:
89.250 ~ 89.260 mm
(3.5138 ■ * 3 .5 1 4 2 ")
O /S-060:
Mark: 89.400
Piston diameter:
89.394 ~ 98.404 mm
(3.5194 - 3 .5 1 9 8 ")
Mark: 89.410
Piston diameter:
89.404 * 89.414 mm
(3.5198 - 3 .5 2 0 2 ")
3-15
~ 89.240 mm