Abstract: An apparatus and method for detecting cylinder leaks in an internal combustion engine includes a hose having an end configured for communication with a spark plug hole connecting to a cylinder to be tested and an end for attachment to a source of pressurized gas. Flow of pressurized gas into the cylinder is limited to the maximum amount of allowable gas leakage from the cylinder. The hose end configured for communication with the spark plug hole includes a resilient stopper sized to seal the end of the hose with respect to the spark plug hole when manually pressed into and held in the spark plug hole. If gas pressure builds up in the cylinder against the stopper during limited gas flow into the cylinder, leakage from the cylinder is below the allowed maximum leakage. Lack of gas pressure build-up indicates excessive cylinder leakage.

Abstract: An apparatus and method for detecting cylinder leaks in an internal combustion engine includes a hose having an end configured for communication with a spark plug hole connecting to a cylinder to be tested and an end for attachment to a source of pressurized gas. Flow of pressurized gas into the cylinder is limited to the maximum amount of allowable gas leakage from the cylinder. The hose end configured for communication with the spark plug hole includes a resilient stopper sized to seal the end of the hose with respect to the spark plug hole when manually pressed into and held in the spark plug hole. If gas pressure builds up in the cylinder against the stopper during limited gas flow into the cylinder, leakage from the cylinder is below the allowed maximum leakage. Lack of gas pressure build-up indicates excessive cylinder leakage.

Abstract: A thread insert and method to replace the damaged threads and tapered seat in a spark plug bore of an internal combustion engine allows for the continued use of the original factory specified spark plugs where the original threads in the spark plug bore have been damaged by stripping or cross threading. The thread insert's inner bore is designed to replace the original threads and tapered seat in the cylinder head. The thread insert may be adapted to fit any internal combustion engine using tapered seat spark plugs, and is particularly useful in deep spark plug bores with limited access as found in the aluminum heads in Ford modular engines. The insert includes a flange head that determines how far into the head the insert can extend and a recess below the flange to collect any bonding agent that may be squeezed from the threads during installation of the insert. Special tools make the installation of the insert easy and accurate.

Abstract: A method and system for handling a highly scalable, X.500 directory solution is described. Management of information within the X.500 directory is divided among separate delegate directory service agent processes running on a single server. The server may have multiple processors implementing the separate delegate directory service agent processes. A user interface for managing such a system is also described.