Ranger 2WD V6-245 4.0L VIN X SFI (1997)
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Compression (Bottom) 0.38-0.58 mm (0.015-0.023 in.)
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Oil Ring (Steel Rail) 0.38-1.39 mm (0.015-0.055 in.)
5. Follow the instructions contained on the piston ring package and install the piston rings.
6. Check the ring side clearance of the compression rings with Feeler Gauge D81L-4201-A or equivalent by inserting it between the ring and its
lower land. The gauge should slide freely around the entire ring circumference without binding. Any wear that occurs will form a step at the inner
portion of the lower land. If the lower lands have high steps, the piston should be replaced.
7. Make sure bearing inserts and the bearing bore in the connecting rod and cap are clean. Foreign material under the inserts will distort the bearing
and cause a failure. Install the connecting rod bearings in the connecting rod and cap with the tangs fitting in the slots provided.
