Suzuki AN400 Service Manual page 87

CONROD BIG END SIDE CLEARANCE INSPECTION
• Using a thickness gauge, measure the side clearance at the
conrod big end. If the measurement is out of standard value,
measure the conrod big end to determine, replace the conrod.
' Conrod big end side clearance:
% 09900-20803: Thickness gauge
' Conrod big end width: Standard:21.95 – 22.00 mm
CONROD BIG END BEARING
• Check that the conrod turns smoothly without play and noise.
CONROD DEFLECTION INSPECTION
• Move the small end sideways while holding the big end
immovable in thrust direction.
• Measure the amount of deflection.
• Turn the conrod and see if it moves smoothly without play and
noise.
• This method can check the extent of wear on the parts of the
conrod's big end.
' Conrod deflection: Service Limit: 3.0 mm (0.12 in)
% 09900-20607: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
09900-21304: V-block
CRANKSHAFT RUNOUT INSPECTION
• With the right and left crank journals supported with V-block,
turn the crankshaft slowly. At this time, measure the crank-
shaft end runout using a dial gauge. If the runout exceeds the
service limit, replace the crankshaft.
' Crankshaft runout: Service Limit: 0.08 mm (0.003 in)
% 09900-20607: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
09900-21304: V-block
Standard: 0.10 – 0.75 mm
(0.004 – 0.030 in)
(0.864 – 0.866 in)
ENGINE 3-41