Cylinder/Piston Standards; Crankshaft Standards - Honda Nighthawk CB 750 1991 Service Manual

General Information
Cylinder I .O.
Cylinder out of round
Cylinder taper
Cylinder warpage
Piston mark direction
Piston O.D. (0)
Piston O.D. measurement point (H)
Piston pin hole I.D. (d)
Unit:mm(~n)
CyIinderlPiston
67.0-67.01 0 (2.638-2.6381)
-
-
-
"IN" mark facing toward the intake side
66.96-66.99 (2.636-2.637)
14mm (0.55 in) from the bottom
17.002-17.008 (0.6694-0.6696)
Item
Cylinder-to-piston clearance
Piston pin O.D.
Piston-to-piston pin clearance
Connecting rod-to-piston pin clearance
Top ring-to-ring groove clearance
Second ring-to-ring groove clearance
Top ring end gap
Second ring end gap
Oil ringlside rail) end gap
Top ring mark
Second ring mark
0.01 -0.050 (0.0003-0.001 9)
16.994-17.000 (0.6691 -0.6693)
0.002-0.014 ( 0 0 0 0 1 -0.0006)
0.01 6-0.040 (0.0004-0.0020)
0.015-0.045 (0.0006-0.0018)
0.015-0.045 (0.0006-0.0018)
0.15-0.30 (0.006-0.012)
0.30-0.45 (0.012-0.018)
0.20-0.70 (0.008-0.028)
"R" Mark side facing up
"RN" Mark side facing up
Standard
Service Limit
-
Crankshaft
Connecting rod small end 1.0.
Connecting rod big end side clearance
radial clearance
Crankshaft r u n o u t a
Crankpin oil clearance
Connecting rod bearing selection
Main journal oil clearance
Main journal bearing selection
17.016-17.034 (0.6699-0.6706)
0.05-0.20 (0.002-0.008)
-
-
0.024-0.057 (0.0009-0.0022)
See
page 9- 1
5
0.020-0.054 (0.0007-0.0021
)
See page 9-14
17.07 (0.672)
0 . 3 (0.01)
-
0 . 0 5 (0.002)
0.06 (0.002)
-
0.06 (0.002)