| 摘要 |
A process is disclosed for inserting a piston pin wire lock ring, particularly Circlips and the like, into a locking groove of a wrist pin bore of a piston. The wire lock ring is radially pre-compressed and thus reduced in size in such a manner that its outside diameter is smaller than the inner diameter of the piston wrist pin bore. The wire lock ring is subsequently inserted, in its compressed state, into the pin bore where it is then uncompressed and released into the locking groove of the piston bore. A kit is disclosed for permitting the installation of a wire lock ring into a groove in a bore of a piston assembly. The disclosed invention comprises a cylindrical sleeve/tube and a plunger that slips into the sleeve/tube. The sleeve/tube has an outside diameter just slightly less than the diameter of the piston wrist pin bore containing the groove in which the lock ring is inserted. The inside diameter of the sleeve/tube is sufficiently large enough to accept the wire lock ring without over compressing, thus bending and/or compromising the wire lock ring. A plunger is also disclosed that slides through the inside diameter of the disclosed sleeve/tube, pressing the wire lock ring out of the sleeve/tube and into its awaiting groove of the bore of the piston assembly, where it will expand and lock into place.
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