Dear Tom and Ray: My 2006 Honda Element has 108,000 miles. The dealer recommends a valve-clearance adjustment at this time. Is this a service you would recommend, or is it not necessary? Please ...

1 Before you get started, check your pushrods for straightness by rolling them on a flat surface, and inspect the tips of the rocker arms for signs of wear or metal burrs, which will mean a short ...

On/off valves are basically on/off switches for hydraulic systems. They are typically installed in applications where precise position or speed control is not required. Proportional valves adjust flow ...