If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...

Shock absorbers have been around in one form or another since the early 1900s, but those drivers wouldn’t recognize the sophisticated dampers used on street or off-road vehicles today. A shock ...

Fittings such as these, for connecting a compressed air line to the spark plug hole for valve support, are available at most auto parts stores. Occasionally it is necessary or desirable to inspect or ...

Helical coil springs are a mainstay in today’s automotive suspensions, with a basic design essentially unchanged since their advent. MW Industries (Rosemont, IL, US) is the largest US spring ...