Abstract: A tool for attaching valve keys to a valve stem includes an elongated holder with a longitudinal axis, an inner hollow space and an end opening. An elongated core is arranged in the hollow space of the holder coaxially to the longitudinal axis. An elongated recess for receiving a substantial upper portion of the valve stem is provided in the end region of the core coaxially to the longitudinal axis. The recess of the core issues into the end opening and has a depth which is greater than or at least equal to the axial distance between the end and the annular groove of the valve stem. The core at least partially covers the annular groove, such that the valve keys can be supplied to the lateral surface of a valve stem underneath the annular groove and incorrect engagement can be avoided.

Abstract: This invention provides a retainer assembling apparatus which assembles a retainer to a valve stem via a cotter which engage with an engaging groove formed on the valve stem. The cotter comprises a pair of cotter segments. The apparatus includes a cylindrical body, a holding portion which holds the retainer contacting a lower end of the cylindrical body, a push-up shaft which pushes up the pair of cotter segments into the cylindrical body, and an axial body which is arranged in the cylindrical body to be coaxial with the push-up shaft and to be coaxially movable. The cylindrical body includes a tapered inner circumferential portion on an inner circumferential wall lower portion thereof.

Abstract: This invention provides a retainer assembling apparatus which assembles a retainer to a valve stem via a cotter which engage with an engaging groove formed on the valve stem. The cotter comprises a pair of cotter segments. The apparatus includes a cylindrical body, a holding portion which holds the retainer contacting a lower end of the cylindrical body, a push-up shaft which pushes up the pair of cotter segments into the cylindrical body, and an axial body which is arranged in the cylindrical body to be coaxial with the push-up shaft and to be coaxially movable. The cylindrical body includes a tapered inner circumferential portion on an inner circumferential wall lower portion thereof.

Abstract: A multi-part pin remover for removing a pin from a hole of a component is provided. A holder of the pin remover that is supported on the component is equipped with a projection that aligns the pin remover with respect to the component in order to reliably prevent any twisting of the pin when removing the pin from the hole.

Abstract: A tire pressure monitor (TPM) installation tool adapted for use by a operator, and for installing a push-in style TPM within a valve stem opening defined by a wheel, wherein the tool is configured to provide mechanical advantage while assembling the TPM and wheel, and includes an elongated member configured to receive an applied force from the operator, a nesting fixture configured to retain the TPM in a relatively fixed position, and a wheel engaging member for securing the tool during installation.

Abstract: The punching and riveting tool includes a pipe shaft, an energy storage spring, a weight control rod, a front cap, a collision head, a punching head, a rear cap, a pressing button, a binding spring and a lock nut. The pipe shaft is in the shape of a hollow pipe, and two ends of the energy storage spring are linked with the weight control rod and the collision head respectively. The collision head is configured with a collision part on the upper end, and a binding slot on the lower end, and the punching head is configured on the bottom end of the collision head. The pressing button is configured with a go-through part and a binding part, and the binding spring with the pressing button are configured in the counterbore of the rear cap. The lock nut is linked onto the tail end of the weight control rod.

Abstract: A hand tool that greatly expedites the installation of the valve locks that secure a valve spring retainer to the free end of a valve stem. The valve locks include an inwardly extending ridge that engages a circumferential groove that extends around an end portion of the valve stem. The valve lock is retained in this position by a tapered central bore of the valve spring retainer that produces an inward clamping force on the valve lock. The tool includes a plunger having a diameter equal to the diameter of the valve stem. The user positions the valve locks on the protruding cylindrical surface of the plunger, where they are held by magnetic attraction. The user pushes the end of the tool against the valve spring retainer, thereby compressing the valve spring so that the valve stem pushes the plunger into a close-fitting loader end cap until the valve locks are transferred to the valve stem and into engagement with the circumferential groove.

Abstract: A hand tool that greatly expedites the installation of the valve locks that secure a valve spring retainer to the free end of a valve stem. The valve locks include an inwardly extending ridge that engages a circumferential groove that extends around an end portion of the valve stem. The valve lock is retained in this position by a tapered central bore of the valve spring retainer that produces an inward clamping force on the valve lock. The tool includes a plunger having a diameter equal to the diameter of the valve stem. The user positions the valve locks on the protruding cylindrical surface of the plunger, where they are held by magnetic attraction. The user pushes the end of the tool against the valve spring retainer, thereby compressing the valve spring so that the valve stem pushes the plunger into a close-fitting loader end cap until the valve locks are transferred to the valve stem and into engagement with the circumferential groove.

Abstract: A valve keeper installation device for facilitating installation of valve keepers. The valve keeper installation device includes a pliers member for engaging and compressing valve locks including: a jaw portion for providing a compressive force; a handle portion designed for being grasp by a human hand, and having two opposed members such that squeezing both opposed members towards each other tightens the jaw portion providing a compressive force; and a cup portion integrally coupled to the jaw portion, and designed for engaging a valve keeper, the cup portion includes a first curved member integrally coupled to a first jaw member and a second curved member integrally coupled to a second jaw member, the first and second curved members being positioned such that an longitudinal axis of the cup portion is substantially collinear with a longitudinal axis of the device.

Abstract: A hand tool that greatly expedites the installation of the valve locks that secure a valve spring retainer to the free end of a valve stem. The valve locks include an inwardly extending ridge that engages a circumferential groove that extends around an end portion of the valve stem. The valve lock is retained in this position by a tapered central bore of the valve spring retainer that produces an inward clamping force on the valve lock. The tool includes a plunger having a diameter equal to the diameter of the valve stem. The user positions the valve locks on the protruding cylindrical surface of the plunger, where they are held by magnetic attraction. The user pushes the end of the tool against the valve spring retainer, thereby compressing the valve spring so that the valve stem pushes the plunger into a close-fitting loader end cap until the valve locks are transferred to the valve stem and into engagement with the circumferential groove.

Abstract: A combination tool system, comprising a hand-held, valve keeper remove/install tool and an engine head clamping support device. Both the hand-held tool and the clamping support device are used together, and include special extraction and installation mechanisms and support parts that enable the easy and safe removal and installation of the segmental valve keepers of an internal combustion engine having cylinder heads with four valves per cylinder, and having recessed valve springs. Removal or installation of a segmental valve keeper typically takes less than a minute. Using the invention tools together avoids the usual risks of causing damage to valves and possible loss of parts. The tools are efficient to use and inexpensive.

Abstract: A combination tool system, comprising a hand-held, valve keeper remove/install tool and an engine head clamping support device. Both the hand-held tool and the clamping support device are used together, and include special extraction and installation mechanisms and support parts that enable the easy and safe removal and installation of the segmental valve keepers of an internal combustion engine having cylinder heads with four valves per cylinder, and having recessed valve springs. Removal or installation of a segmental valve keeper typically takes less than a minute. Using the invention tools together avoids the usual risks of causing damage to valves and possible loss of parts. The tools are efficient to use and inexpensive.

Abstract: A hand tool that greatly expedites installation of the valve locks that secure a valve spring retainer to the free end of a valve stem. The valve locks include an inwardly extending ridge that engages a circumferential groove that extends around an end portion of the valve stem. The valve lock is retained in this position by a tapered central bore of the valve spring retainer that produces an inward clamping force on the valve lock. The tool includes a plunger having a diameter equal to the diameter of the valve stem. The user positions the valve locks on the protruding cylindrical surface of the plunger, where they are held by magnetic attraction. The user pushes the end of the tool against the valve spring retainer, thereby compressing the valve spring so that the valve stem pushes the plunger into a close-fitting loader end cap until the valve locks are transferred to the valve stem and into engagement with the circumferential groove.

Abstract: An inserting device for automated assembling of cone half-bits on the stem of a valve of an internal combustion engine, has an inner chamber at one end which is isolated from outside due to the engagement of the inserting device on the end of the valve when this device carries out the assembling of the cone half-bits. Immediately after assembling, pressurized air is introduced into this chamber and a check is carried out on whether there are any pressure losses in this chamber caused by air leakages due to improper assembling of the cone half-bits.

Abstract: A device for automated assembling of cone half-bits on a valve of an internal combustion engine has a pushing rod which is introduced inside a plurality of longitudinal petals which are elastically deflectable outwardly in a radial direction, said petals being adapted to be introduced between the two cone half-bits so as to cause them to diverge from each other during the assembling operation.

Abstract: A device for replacing or removing valve-spring retainer locks includes a shaft, in which a sleeve is elastically supported. At its free end, the sleeve has wedge-like gap tools for detaching the valve-spring retainer locks and for holding the locks within a space of the shaft. A pin is elastically supported within the sleeve and provides for centering of the valve-spring retainer locks during replacement or removal.

Abstract: A method and apparatus for reliably placing the spring retainer and keys on a valve stem, to lock the valve spring in place. The apparatus includes a linear actuator, having an extended position and a retracted position, and a connector for connecting the linear actuator to a carrying member, such as a robotic arm. A gripper is attached to the linear actuator, adapted to grip the spring retainer. The keys reside in a retainer-key kit, held therein by gravity, and are presented to the gripper in a predetermined position by a positioning device. As the linear actuator is extended from its retracted position to its extended position, the gripper engages the retainer-key kit. The retainer-key kit is then withdrawn from the positioning device by retracting the linear actuator. The gripper and retainer-key kit are then transported to the cylinder head so that the retainer-key kit is substantially positioned for application to the valve stem.

Abstract: A swaging tool for swaging a fitting to a tube includes a tubular housing having a first jaw unit on a first end portion of the housing and a closed cylinder at a second end portion of the housing. The closed cylinder has a port for receiving pressurized fluid. A ram is movable in opposite axial directions in the closed cylinder of the housing. A piston having a second jaw unit is located in a middle portion of the housing in engagement with the ram. A stabilizing pin is slideably received through the piston and into the ram. Bearings are located on an end of the stabilizing pin and on the ram to react the moments generated during swaging directly into the housing.

Abstract: A valve spring compressor apparatus for removing and installing valve springs on automotive racing engines includes a valve seat and a compressor pump assembly. The valve seat is placed between the valve spring and the engine housing. The compressor engages the valve spring seat with a support arm and extends a piston toward the valve spring seat, thus compressing the valve spring and allowing for the removal of the retainer ring and keeper lock. The compressor uses a source of compressed air to drive a power piston into a compression chamber multiplying the supply air pressure several times. This multiplied air pressure is retained in the extension piston chamber by a one-way valve. As the extension piston extends, the multiplied air pressure in the extension piston is maintained by repeated cycling of the compressor.

Abstract: The gripping tool has a base consisting of a flat ring onto which are mounted three posts extending upwardly therefrom. Rotatable and slidable clips with magnets are mounted on at least two of the posts to capture the loosened key bolts. A plate is attached to the top of the posts and a clip may extend upwardly therefrom to permit attachment of an adapter for use with a drill press. The flat ring is centered over the top of the valve stem and key bolt and rests on top of the upper cup which presses against the top of the ring which retains the spring. Force applied to the top of the tool presses down on the upper cup to release the key bolt.

Abstract: The method of facilitating assembly and disassembly of valves in a cylinder head uses a gripping tool which has a base consisting of a flat ring onto which are mounted three posts extending upwardly therefrom. Rotatable and slidable clips with magnets are mounted on at least two of the posts to capture the loose key bolts. A plate is attached to the top of the posts and a clip may extend upwardly therefrom to permit attachment of an adapter for use with a drill press. The flat ring is centered over the top of the valve stem and key bolt and rests on top of the upper cup which presses against the top of the ring which retains the spring. Force applied to the top of the tool presses down on the upper cup, compressing the spring to release the key bolt. For re-assembly, a centering ring holds the spring centered with the cam bucket bore, providing the contact surface for the flat ring.

Abstract: A self-locking valve spring retainer (30) operatively retaining a return spring (28) on the stem (20) of a poppet valve (16) comprises an annular base ring (48) from which three flexible arms (52) upwardly extend. A pair of axially spaced locking steps (66, 68) project radially inwardly from each of the arms (52) to provide barbed engaging ledges (74, 76) which interlock with a correspondingly shaped valve stem (20). An annular waisted hinge (86) is formed between the three arms (52) and the base ring (48) to ease stresses on the retainer (30) as the arms (52) are blossomed outwardly during installation and removal. A metallic anti-wear plate (88) is secured to the top of each arm (52). An installation and removal tool (92) for the retainer (30) comprises three wedge-shaped prongs (98) insertable within the three expansion slots (54) separating the three arms (52) for blossoming the retainer (30) prior to insertion and removal.

Abstract: A method of removing cylinder plugs from glove box locks in all vehicles which use this system. Consists of using a tool assembly which has two holes to hold onto the lock case, a knob at the top for turning the threaded tappered shaft so the fingers will spread the cylinder plug holding tabs, releasing the cylinder plug so the threaded tappered shaft can travel further down, pushing the cylinder plug out of the lock case.

Abstract: This invention relates to an internal snap ring removal tool which is characterized by a first cylindrically-surfaced clamp-forming element clampable onto a surface of the snap ring exposed outside its groove while the cylindrical surface of the aforesaid element lies in essentially tangent relation to the bore of the part containing the snap ring, and an eccentrically-bored collar that encircles the clamp-forming element for relative rotation therearound in contact with the bore of the part housing the snap ring thereby camming the snap ring free of its groove.

Abstract: This invention relates to a set of tools for removing lugless snap rings from the internal annular grooves provided therefor in parts containing internal bores, these tools consisting of a pointed tool for making an indentation in the base of the groove between the ends of the ring, a plunger-actuated ball magazine for placing a ball in the indentation thus formed preparatory to driving the ring aroung in its groove until one of its ends rides up upon the ball to create a gap therebeneath, a clamping tool for holding the ring in its groove against further relative rotation, a wedge for movement into the gap underneath the raised end of the ring, and a wedge-driving subassembly for moving the wedge into the gap to a point where the raised end of the ring is free of the groove and in position to be grasped and removed.

Abstract: A tool for mounting the valve assemblies of an engine block, each valve assembly being of the type comprising a valve with an elongated stem, a compression spring surrounding the valve stem, with one end abutting the engine block and the other end abutting a spring retainer, a segmental keeper engagable in an annular groove in the valve stem and maintaining the spring retainer in position on the valve stem, and an oil sealing ring mounted in an annular groove in the valve stem and sealingly engaging the spring retainer. The tool comprises a body portion having a free end and a working end. An axial bore extends inwardly of the working end and is of such diameter as to just nicely receive the free end of the valve stem.

Abstract: A tool for mounting a spring retainer plate on a valve stem with a locking member includes a tool shaft having a socket on one end thereof for cooperation with a spring retainer plate to push same over a valve stem. A yieldable pin extends outwardly of the shaft at its one end centrally of the socket for engaging an end of a valve stem. An abutment surface generally radially outwardly of the pin engages a locking member to move same axially over the end of a valve stem in following relationship to the spring retainer plate for cooperably locking onto the valve stem to hold the plate against displacement from the stem.

Abstract: A check valve comprises a housing defining a valve seat thereon and a valve member reciprocally mounted in the housing to normally engage the seat for blocking fluid flow therepast. Two pairs of split retaining members are mounted in axially spaced relationship on a stem of the valve member and are expanded axially thereon by a compression coil spring for biasing the valve member to its closed position. A stop member is secured on an end of the stem of the valve member to prevent movement of one pair of the retaining members therepast. A slot is formed axially through the stop member and extends partially in the stem of the valve member to expose an end of the spring. In assembling the valve, a tool is inserted into the slot to compress the spring whereby the one pair of retaining members may be mounted on the valve member, between the spring and the stop member.

Abstract: A tool for imparting force to a mechanical element located in a confined area having an impact member for receiving and transferring force applied to it, an end member engageable with the mechanical element, and a connector rotatably joining the end member and the impact member, the end member and the impact member having mating faces at least one of which lies in a plane oblique to the force transmitting axis thereof for applying a force to the mechanical element from an angular position of the impact member relative to the end member by selective relative rotation of the impact member and the end member.

Abstract: A hand-held tool for removing or replacing valve stem keepers such as utilized with spring tensioned valves found in an internal combustion engine, the device having a rigid body with one end face of the body having a cavity disposed therein. The body cavity includes a larger diameter cavity and a relatively smaller diameter cavity. A resilient sleeve having an annular lip at one end is removeably coupleable within said smaller diameter cavity and is utilized with the rigid body for placement or replacement of valve stem keepers. The tool body includes a passage between the body exterior and the smaller cavity to provide pressure balance and ease of removal of the resilient sleeve. With the resilient sleeve removed, the device is utilized to remove the valve stem keepers in a normal manner. The body of the tool is sized to be engageable with the particular valve spring retainer located adjacent the end of a valve stem.

Abstract: Tools and method for removing an overhead camshaft and assembling and disassembling the valve train of an internal combustion engine. One of the tools comprises a plurality of pivotal rocker members for depressing the valves of the engine allowing the overhead camshaft to be removed axially from the cylinder head. This tool includes an improved base for attachment to the cylinder head as well as improved supports for the rocker members. The companion tool includes a hollow cylinder facilitating removal of the spring keepers when the spring and retainer are depressed and having an internal annular, inclined shoulder facilitating insertion of the keepers during assembly of the valve train.