Suzuki K6A-YH6 Technical/Repair Manual page 98

REPAIR
Inspection
Cylinder Block and Lower Crankcase
1. Carefully inspect cylinder block and lower crankcase
for cracks or damage. Repair or replace as needed.
2. Inspect cylinder liners for cracks or damage.
3. Measure cylinder bores ID. Compare to specification
and piston OD specification. Repair or replace
as needed.
Cylinder Bore ID: 2.6771—2.6779 in.
(68.000—68.020 mm)
Cylinder Bore ID Limit: 2.6791 in.
(68.050 mm)
Piston OD: 2.675—2.676 in.
(67.970—67.990 mm)
NOTE
Oversized main and thrust bearings are available. The
bearing sets are color coded to identify size. Measure
components to determine the proper set for the
application.
Bearing Color
Brown
Green
Black
No Color
7
Yellow
4. Inspect main bearing journals for damage.
5. Measure main bearing journals ID. Compare
measurement to specification and crankshaft main
journal OD specification. Calculate or measure oil
clearance. Compare to specification and choose the
correct color coded main bearing set for the
application. Repair or replace as needed.
Cylinder Block Main Bearing Journal ID:
1.9291—1.9298 in. (49.000—49.018 mm)
Crankshaft Main Bearing Journal OD:
1.770—1.771 in. (44.982—45.000 mm)
Oil Clearance: 0.0007—0.0015 in.
(0.020—0.040 mm)
Oil Clearance Limit: 0.002 in. (0.065 mm)
6. Inspect oil passages for debris or obstructions. Clean
as needed.
7-44
Size Range
0.0785—0.0787 in.
(1.996—2.000 mm)
0.0787—0.0788 in.
(1.999—2.003 mm)
0.0788—0.0789 in.
(2.002—2.006 mm)
0.0788—0.0789 in.
(2.002—2.006 mm)
0.0790—0.0792 in.
(2.008—2.012 mm)
Crankshaft
1. Inspect crankshaft for cracks or damage. Replace as
needed. Inspect main and rod journals for scratches,
wear, or damage. Repair or replace as needed.
2. Measure crankshaft main bearing journals OD.
Compare measurement to specification and cylinder
block main bearing journals ID. Calculate or measure
oil clearance. Compare to specification and choose
the correct color coded main bearing set for the
application. Repair or replace as needed.
Crankshaft Main Bearing Journal OD:
1.770—1.771 in. (44.982—45.000 mm)
Cylinder Block Main Bearing Journal ID:
1.9291—1.9298 in. (49.000—49.018 mm)
Oil Clearance: 0.0007—0.0015 in.
(0.020—0.040 mm)
Oil Clearance Limit: 0.002 in. (0.065 mm)
3. Measure crankshaft rod bearing journals OD.
Compare measurement to specification and
connecting rod large end ID specification. Calculate
or measure oil clearance and compare to
specification. Repair or replace as needed.
Crankshaft Connecting Rod Bearing Journal OD:
1.495—1.496 in. (37.982—38.000 mm)
Connecting Rod Large End ID: 1.6141—1.6148 in.
(41.000—41.018 mm)
Oil Clearance: 0.0007—0.0015 in.
(0.020—0.040 mm)
Oil Clearance Limit: 0.002 in. (0.065 mm)