A spring compressor is among the most infamous tools available to home auto mechanics. Its job and operation are straightforward: It just squeezes a spring so that you can remove or install it from a ...

We earn commissions from purchases you make using links in our articles. Learn more. Whether it's for painting, dusting, inflating, or air tools, sometimes there's no substitute for an air compressor.

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 ...