Cylinder Head Inspection; Cylinder Measurement - Polaris 2003 Pro X Service Manual

Cylinder Head Inspection

1. Inspect each cylinder head for warping. Replace
cylinder head if warp exceeds service limit.
Cylinder Head Warp
Service Limit: .003 (.08mm)

Cylinder Measurement

2. Inspect each cylinder for wear, scratches, or
damage. If no damage is evident, measure the
cylinder for taper and out of round with a
telescoping gauge or a dial bore gauge. Measure
the bore 1/2 from the top of the cylinder; in line with
the piston pin and 90 to the pin to determine if the
bore is out of round. Repeat the measurements at
the middle and bottom of the cylinder to determine
taper or out of round at the bottom. Record all
measurements.
Cylinder Taper
Limit: .002 Max.
Cylinder Out of Round
Limit: .002 Max.
Y
X
Top
Y
X
Middle
Y
X
Bottom
ENGINE
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