Connecting Rod Inspection - Polaris ACE 900 2017 Service Manual

CONNECTING ROD INSPECTION

1. Inspect the small end and big end of connecting rod
(and matching rod cap) for damage, galling of
surface or pitting.
2. Measure small end I. D. in two directions as shown.
Record measurements
specifications. Replace connecting rod if worn past
the service limit specification.
MEASUREMENT
Connecting Rod Small End I.D.:
0.7879" - 0.7884" (20.015 - 20.025 mm)
Service Limit: 0.7897" (20.06 mm)
3. Install matching rod cap on connecting rod (without
bearings) and install the bolts.
4. Tighten bolts by hand, then torque to specification
prior to taking any measurements.
TORQUE
Connecting Rod Bolts:
Step 1: 9 ft-lb (12 Nm)
Step 2: 22 ft-lb (30 Nm)
Step 3: Tighten add'n 90°
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
5. Using a dial bore gauge, measure big end I.D. in two
and compare to
6. Refer to the number printed onto the side of the
7. The table below lists the big end bore diameter
8. Whether using new connecting rods or re-installing
ENGINE / COOLING SYSTEM
directions shown. Remove bearings when taking
q
measurements . Record measurements and
compare to specifications.
connecting rod, between the small and large bore
ends. This number represents the bore diameter.
specifications.
Connecting Rod Big End Bore Diameters
1 2
1.7318- 1.7321-
1.7321" 1.7323"
(43.989- (43.996-
43.996 mm) 44.003 mm)
the original ones, refer to the bearing selection chart
provided in the "Connecting Rod Bearing Selection"
procedure in this chapter.
3
3
1.7323-
1.7326"
(44.003-
44.010 mm)
3.67