Inner Diameter Of Cylinder; Thickness Of Metal Bearing; Color Of Inner Diameter Code - TOHATSU MFS 9.9 Owner's Manual

8. Loosen bolts in reverse order in several steps. Remove crank
case and measure width of crushed plasti-gauge on each main
journal. Replace bearing if the width is over specified value.
Crankshaft Main Journal Oil Clearance :
0.012 - 0.044 mm (0.00047 - 0.00173 in)
Functional Limit :
0.060 mm (0.00236 in)
If the clearance is less than specified value,
check that inner diameter code is as shown
below.
38) Inner Diameter of Cylinder/Crank Case
Bearing Holder (Inner Diameter Code)
Cylinder is marked on its upper section with inner diameter
code 1 that indicates inner diameter of each bearing holder.
There are the following two types of bearings that are
indicated with the inner diameter code, which is to be used
for identification of proper size part.
Inner diameter code 1
39.000 - 39.008 mm
A or X
(1.53543 - 1.53575 in)
39.008 - 39.016mm
B or Y
(1.53575 - 1.53606 in)
Inner diameter codes A and B or X and Y
represent size of each bearing section.
Remarks : When cylinder/crank case is purchased as a part,
fitting bearing comes with it.

39) Thickness of Metal Bearing

(Color of Inner Diameter Code)

Bearing is painted with color a that represents thickness.
There are the following two types of bearings that are to be
selected properly.
[Coloring (Inner Diameter Code)]
Blue
Red
4st 9.9/15/20 2008
Standard value Coloring of bearing
Blue
Red
Thickness
1.488 - 1.494 mm
(0.05858 - 0.05882 in)
1.494 - 1.500 mm
(0.05882 - 0.05906 in)
1 Inner diameter code
A B
or
(Upper bearing side)
A X
Example :
1
XY
X Y
or
(Lower bearing side)
a
5-49
5