Suzuki Liana RH418, Supplementary Service Manual

Page: 177 / 371

Engine Mechanical: 1D-51
• Connecting rod alignment:
Mount connecting rod on aligner to check it for bow
and twist. If limit is exceeded, replace it.
Connecting rod alignment
Limit on bow: 0.05 mm (0.0020 in.)
Limit on twist: 0.10 mm (0.0039 in.)
Crank Pin and Connecting Rod Bearings
Inspection
S3RH0B1406034
Crank Pin
• Inspect crank pin for uneven wear or damage.
Measure crank pin for out-of-round or taper with a
micrometer. If crank pin is damaged or out-of round or
taper is out of limit, replace crankshaft or regrind
crank pin to undersize and use undersize bearing.
Connecting rod bearing and crank pin
Out-of-round
“A” – “B”
Taper
“a” – “b”
Out-of-round and taper limits
0.01 mm (0.0004 in.)
Connecting Rod Bolt
• Connecting rod bolt deformation (Plastic deformation
tightening bolt):
Measure each thread diameter of connecting rod (1)
bolt (2) at “A” and “B” by using a micrometer (3).
Calculate difference in diameters (“A” – “B”). If it is
exceeds limit, replace connected rod.
Connecting rod bolt measurement points
“a”: 32 mm (1.26 in.)
“b”: 40 mm (1.57 in.)
Connecting rod bolt diameter difference
Limit (“A” – “B”): 0.1 mm (0.004 in.)
Connecting rod bearing size Crank pin diameter
Standard
41.982 – 42.000 mm
(1.6529 – 1.6535 in.)
Undersize 0.25 mm (0.0098 in.)
41.732 – 41.750 mm
(1.6430 – 1.6437 in.)
I4RH01140053-01
I2RH0B140120-01
I2RH0B140119-01