Suzuki DF 2.5 Service Manual page 94

6-28 POWER UNIT
Conrod big end oil clearance
Check the clearance as follows.
1. Clean the surface of the conrod, the conrod cap and the
crank pin.
2. Place a piece of the plastigauge on the crank pin parallel to
the crankshaft, avoiding the oil hole.
 09900-22301: Plastigauge
3. Install the conrod and the conrod cap to the crank pin.
4. Install the two conrod bolts and tighten the bolts to the spec-
ified torque in two steps.
NOTE:
Do not rotate the conrod with the plastigauge in place.
 Conrod bolt:
1st step 3.5 N·m (0.35 kg-m, 2.5 lb-ft)
2nd step 7 N·m (0.7 kg-m, 5.0 lb-ft)
5. Remove the conrod and the conrod cap from the crank pin.
6. Using the scale on the plastigauge envelop, measure the
plastigauge with the widest point.
Conrod big end oil clearance:
Standard: 0.15 – 0.035 mm (0.0006 – 0.0014 in)
Service limit: 0.080 mm (0.0031 in)
If the measurement exceeds the service limit replace the conrod
assembly and/or crankshaft.
Conrod big end inside diameter:
Standard: 19.015 – 19.025 mm (0.7486 – 0.7490 in)
Crankshaft runout
Measure the crankshaft runout as shown in the figure.
 09900-20602: Dial gauge
Crankshaft runout:
Service limit: 0.05 mm (0.002 in)
If the measurement exceeds the service limit, replace the crank-
shaft.
Mark