Lower Unit Technical Data; Lower Unit Assembly - Yamaha F25 Service Manual

SPEC
Item
Crankcase
Crankshaft journal oil
clearance
(*1) The figures are for reference only.

Lower unit technical data

Lower unit assembly

Item
Lower unit
Holding pressure
Pinion-to-forward gear
Backlash (*1)
Pinion-to-reverse gear
Backlash (*1)
Pinion shim (T3)
Forward gear shim (T1)
Reverse gear shim (T2)
Propeller shaft
Runout
Drive shaft
Runout
Item
Lower unit
Holding pressure
Pinion-to-forward gear
Backlash (*1)
Pinion-to-reverse gear
Backlash (*1)
1-19
Specification
Unit
mm (in)
Unit
kPa
(kgf/cm
psi)
mm (in)
mm (in)
mm
mm
mm
mm (in)
mm (in)
Unit
kPa
(kgf/cm
psi)
mm (in)
mm (in)
F25EA
0.012–0.036 (0.0005–0.0014)
F25MHA
2
, 98.1 (0.981, 14.2)
0.30–0.73 (0.0118–0.0287)
0.92–1.65 (0.0362–0.0650)
0.7, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6
1.0, 1.1, 1.2, 1.3, 1.4
F25EA
2
, 98.1 (0.981, 14.2)
0.30–0.73 (0.0118–0.0287)
0.92–1.65 (0.0362–0.0650)
Model
F25A
Model
F25EHA
1.0, 1.1, 1.2, 1.3
0.02 (0.0008)
0.5 (0.0197)
Model
F25A
(0.686, 9.9)
0.22–0.69
(0.0087–
0.90–1.37
(0.0354–
T25A
T25A
68.6
0.0272)
0.0539)