Caterpillar Inc.

Jonathan Eggemeyer

Curtis John Graham

Taylor Douglas Young

Donald P Clark

A venting plug assembly for sealing a coolant channel and venting air therefrom is disclosed. The coolant channel defines an open portion to receive the venting plug assembly. The venting plug assembly includes an outer sealing element with an annular portion configured for sealing engagement with the open portion of the coolant channel. The venting assembly further includes an inner sealing element configured for sealing engagement with the annular portion of the outer sealing element. The inner sealing element is configured to move relative to the annular portion of the outer sealing element to allow air to vent from the coolant channel through the outer sealing element.

Venting plug for engine coolant filling

A method for repairing a rocker arm including smoothing out a bore in an injector arm of the rocker arm to remove at least a portion of worn threads within the bore, and securing a threaded insert within the bore. The threaded insert may include threads on an internal surface of the threaded insert, a smooth portion on an external surface of the threaded insert, and a flange on an end of the threaded insert.

Rocker arm for engines

A method of remanufacturing a rocker arm having a body defining a socket portion is disclosed. The method includes machining the socket portion to remove a worn surface and form a seat configured to receive an insert member therein. The method further includes disposing the insert member within the seat and coupling the insert member to the seat.

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East Peoria, IL, United States of America

Jonathan Eggemeyer