Suzuki GRAND VITARA XL-7 Owner's Manual page 321

6A2-34 ENGINE MECHANICAL (H27 ENGINE)
Under size bearing specification :
Alphabets stamped on
lower crankcase
• UNDERSIZE BEARING (0.25 mm) :
0.25 mm undersize bearing is available, in 5 kinds varying in
thickness.
To distinguish them, each bearing is painted in the following
colors at such position as shown in the figure.
Each color represents the following thickness at the center of
bearing.
Under size main bearing thickness
1.
• If necessary, regrind crankshaft journal and select undersize
bearing to use with it as follows.
1) Regrind journal to the following finished diameter.
Finished journal diameter :
64.738 – 64.756 mm (2.5487 – 2.5494 in.)
2) Using micrometer, measure reground journal diameter.
Measurement should be taken in 2 directions perpendicular
to each other in order to check for out-of-round.
3) Using journal diameter measured above and alphabets
stamped on lower crankcase, select an undersize bearing by
referring to table given below.
Check bearing clearance with newly selected undersize
bearing.
64.750 – 64.756 mm
(2.5492 – 2.5494 in.)
A Black & Red
B Red
C Red & Yellow
Color painted
Black & Red
Red
Red & Yellow
Red & Blue
Red & Pink
Paint
Measured journal diameter
64.744 – 64.750 mm
(2.5489 – 2.5492 in.)
Red
Red & Yellow
Red & Blue
Bearing thickness
2.621 – 2.625 mm
(0.1032 – 0.1033 in.)
2.624 – 2.628 mm
(0.1033 – 0.1034 in.)
2.627 – 2.631 mm
(0.1034 – 0.1035 in.)
2.630 – 2.634 mm
(0.1035 – 0.1036 in.)
2.633 – 2.637 mm
(0.1036 – 0.1037 in.)
64.738 – 64.744 mm
(2.5487– 2.5489 in.)
Red & Yellow
Red & Blue
Red & Pink