BOMBARDIER Johnson 90 Service Manual page 206

POWER UNIT
CYLINDER / CRANKSHAFT / PISTON
CONROD BIG END SIDE CLEARANCE
Measure conrod big end side clearance with conrod installed
on crank pin as shown in figure.
1©1
Thickness gauge
Conrod big end side clearance:
Standard: 0.100- 0.250 mm (0.0039- 0.0098 in)
Service limit: 0.350 mm (0.0138 in)
lf measurement exceeds service limit, replace conrod and/or
crankshaft.
Conrod big end width:
Standard: 21.950 - 22.000 mm
(0.8642 - 0.8661 in)
Crank pin width:
Standard: 22.100- 22.200 mm
(0.8700 - 0.8740 in)
CRANK PIN
lnspect crank pin for uneven wear or other damage. Measure
crank pin for out-oí-round or taper with micrometer. lf any
crank pin is damaged or íf measurements exceed servíce
límit, replace crankshaft.
1©.1
Micrometer
Out-of-round
Taper
:A-B
: a-b
Out-of-round and taper:
Service limit: 0.01 O mm (0.0004 in)
Crank pin diameter:
Standard: 43.982-44.000 mm
(1.7316-1.7323 in)