BOMBARDIER Johnson 90 Service Manual page 207

POWER UNIT
CYLINDER / CRANKSHAFT / PISTON
CONROD BEARING
lnspect bearings for proper contact pattern and signs of
fusion, pitting, burning or flaking. Replace if necessary.
Always replace both bearing halves, never replace only one
half of a bearing set.
Conrod big end oil clearance
Check conrod big end oil clearance as follows:
1. Clean surface of conrod, conrod cap, conrod bearing,
and crank pin.
2. lnstall conrod bearing onto conrod and conrod cap.
NOTE:
• Reassemble each bearíng and conrod cap to their original
position.
• Do not apply oil to bearing.
3. Place a piece of Plastigauge on crank pin parallel to
crankshaft. Do not place Plastigauge over oil hole.
1f o&1
Plastigauge (0.025-0.076 mm)
4. lnstall conrod cap (with bearing) to conrod with dot ( • )
mark on cap toward flywheel side.
5. Apply engine oil lightly to conrod bolts and tighten nut in
two steps.
~ Conrod cap nut:
1st step 18 N-m (1.8 kg-m; 13.0 lb-ft)
Final step 35 N,m (3.5 kg-m; 25.5 lb-ft)
NOTE:
Do not rotate conrod while Plastigauge is installed.
dot (•)
6-53