Suzuki SQ416 Service Manual page 54

No. 1 Bearing
No. 3
Bearing
No. 2
Bearing
2) Next, check crankcase (bearing cap) bore diameter without
bearing. On lower surface of lower crankcase 4 alphabets are
stamped as shown in figure.
Three kinds of alphabets (A, B and C) represent following cap
bore diameters.
No. 4
Stamped alphabet
Bearing
3) There are five kinds of standard bearings differing in thickness.
To distinguish them, they are painted in following colors at the
position as indicated in figure.
Each color indicates following thickness at the center of bearing.
Color painted
Black
Colorless (no paint)
Yellow
Blue
Pink
ENGINE MECHANICAL (H25 ENGINE) 6A2-9
Bearing cap bore diameter
70.000 – 70.006 mm
A
(2.7559 – 2.7561 in.)
70.006 – 70.012 mm
B
(2.7561 – 2.7563 in.)
70.012 – 70.018 mm
C
(2.7563 – 2.7566 in.)
Bearing thickness
2.496 – 2.500 mm
(0.0983 – 0.0984 in.)
2.499 – 2.503 mm
(0.0984 – 0.0985 in.)
2.502 – 2.506 mm
(0.0985 – 0.0986 in.)
2.505 – 2.509 mm
(0.0986 – 0.0987 in.)
2.508 – 2.512 mm
(0.0987 – 0.0988 in.)
(without bearing)