Cylinder Head Inspection; Cylinder Head Warpage; Cylinder Head Disassembly - Polaris Ranger 500 2x4 2007 Service Manual

ENGINE

Cylinder Head Inspection

B
1. Thoroughly clean cylinder head (B) surface to remove all
traces of gasket material and carbon.
CAUTION: Use care not to damage sealing surface.

Cylinder Head Warpage

Cylinder Head Warpage Limit:
.002" (.05 mm)
1. Lay a straight edge across the surface of the cylinder head
at several different points and measure warpage by
inserting a feeler gauge between the straight edge and the
cylinder head surface. If warpage exceeds the service
limit, replace the cylinder head.

Cylinder Head Disassembly

Wear eye protection or a face shield during
cylinder head disassembly and reassembly.
NOTE: Keep all parts in order with respect to their
location in the cylinder head.
3.24
WARNING
1. Using a valve spring compressor (C), compress the valve
spring and remove the split keeper.
NOTE: To prevent loss of tension, do not compress
the valve spring more than necessary.
2. Remove spring retainer and spring.
NOTE: The valve springs should be positioned with
the tightly wound coils against the cylinder head on
progressively wound springs (D).
3. Push valve out, keeping it in order for reassembly in the
same guide.
4. Measure free length of spring with a Vernier caliper. Check
spring for squareness. Compare to specifications. Replace
spring if either measurement is out of specification
C
D