ENGINES
3.55
Connecting Rod (Big End) Bearing Inspection
1. Measure connecting rod big end side clearance with
a feeler gauge. Clearance should be equal on all
rods (within .002
²
). Rotate rod on crankshaft and
check for rough spots. Check radial end play in rod
by supporting rod against one thrust washer and
alternately applying up and down pressure. Replace
bearing, pin, and thrust washers if side clearance is
excessive or if there is any up and down movement
detectable in the big end bearing.
NOTE:
Specialized equipment and a sound knowledge
of crankshaft repair and straightening is required to per-
form crankshaft work safely and correctly. Crankshaft
repair should be performed by trained Polaris service
technicians in a properly equipped shop.
Piston Pin / Needle Bearing Inspection
1. Clean needle bearing in solvent and dry with
compressed air.
2. Inspect needle cage carefully for cracks or shiny
spots which indicate wear.
Replace needle
bearings if worn or cracked, and always replace
them if piston damage has occurred.
3. Visually
inspect
piston
pin
for
damage,
discoloration, or wear. Run your fingernail along
the length of the pin and replace it if any rough
spots, galling or wear is detected.
Connecting Rod Small End Inspection
1. Clean small end of connecting rod and inspect inner
bore with a magnifying glass. Look for any surface
irregularities including pitting, wear, or dents.
2. Run your fingernail around the inside of the rod and
check for rough spots, galling, or wear.
3. Oil and install needle bearing and pin in connecting
rod. Rotate pin slowly and check for rough spots or
any resistance to movement. Slide pin back and
forth through bearing while rotating and check for
rough spots.
4. With pin and bearing centered in rod, twist ends
back and forth in all directions to check for
excessive axial play. Pull up and down evenly on
both ends of pin to check for radial play. Replace
pin
and
bearing if there is any resistance to rotation
or excessive axial or radial movement. If play or
roughness is evident with a new pin and bearing,
replace the connecting rod.
Содержание 600 EDGE RMK
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Страница 391: ...ELECTRICAL 10 2 INDY 500 RMK 500 SKS EURO ...
Страница 392: ...WIRING DIAGRAMS 10 3 INDY 700 SKS INDY 600 700 800 EDGE RMK ...