5B-20 Manual Transmission:
Specifications
Service Data
B718H15207001
Transmission + Drive Chain
Unit: mm (in) Except ratio
Tightening Torque Specifications
B718H15207002
NOTE
The specified tightening torque is also described in the following.
“Gearshift Lever Construction (Page 5B-13)”
“Gearshift Shaft / Gearshift Cam Plate Components (Page 5B-14)”
“Gearshift Construction (Page 5B-15)”
Reference:
For the tightening torque of fastener not specified in this section, refer to “Tightening Torque Specifications in Section
0C (Page 0C-7)”.
Item Standard Limit
Primary reduction ratio 1.537 (83/54) —
Final reduction ratio 2.388 (43/18) —
Gear ratios
Low 3.076 (40/13) —
2nd 2.058 (35/17) —
3rd 1.550 (31/20) —
4th 1.304 (30/23) —
5th 1.160 (29/25) —
Top 1.071 (30/28) —
Gearshift-fork to gearshift-fork
groove clearance
0.1 – 0.3 (0.004 – 0.012) 0.5 (0.020)
Gearshift fork groove width 5.0 – 5.1 (0.197 – 0.201) —
Gearshift fork thickness 4.8 – 4.9 (0.189 – 0.193) —
Gearshift lever height 45 – 55 (1.8 – 2.2) —
Fastening part
Tightening torque
Note
N⋅mkgf-mlb-ft
Push rod oil seal bolt 12 1.2 8.5 )(Page 5B-5)
Countershaft bearing retainer screw 12 1.2 8.5 )(Page 5B-6)
Gearshift fork shaft retainer screw 10 1.0 7.0 )(Page 5B-7)
Gearshift cam retainer screw 10 1.0 7.0 )(Page 5B-7)
GP switch mounting bolt 6.5 0.65 4.7 )(Page 5B-13)
Gearshift arm stopper 19 1.9 13.5 )(Page 5B-16)
Gearshift cam stopper bolt 10 1.0 7.0 )(Page 5B-16)
Gearshift cam stopper plate bolt 13 1.3 9.5 )(Page 5B-17)
Gearshift shaft end bolt 10 1.0 7.0 )(Page 5B-17)
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