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 ...

Those wound-up pieces of high-tensile steel under your rocker arms work so hard closing your valves over millions of cycles that they could probably use a replacement right about now. We're talking ...

See if any of these scenarios sound familiar: Every morning when you start your car, a small cloud of blue smoke erupts from the tailpipe. Or, even though your engine doesn't leak oil and apparently ...