3
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.
3.67
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 and compare to
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°
5. Using a dial bore gauge, measure big end I.D. in two
directions shown. Remove bearings when taking
measurements
q
. Record measurements and
compare to specifications.
6. Refer to the number printed onto the side of the
connecting rod, between the small and large bore
ends. This number represents the bore diameter.
7. The table below lists the big end bore diameter
specifications.
Connecting Rod Big End Bore Diameters
1 2 3
1.7318-
1.7321″
(43.989-
43.996 mm)
1.7321-
1.7323″
(43.996-
44.003 mm)
1.7323-
1.7326″
(44.003-
44.010 mm)
8. Whether using new connecting rods or re-installing
the original ones, refer to the bearing selection chart
provided in the “Connecting Rod Bearing Selection”
procedure in this chapter.
ENGINE / COOLING SYSTEM
To Next Page
Loading...
Need help?
General
