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 ...

Performing a quick check of your valvespring pressures is a simple and easy procedure. The good news is-if you aren't doing it already-checking your spring pressures weekly (or at least after every ...

Cam lift and timing can put the valves dangerously close to the piston. We show you how to check the clearance In all but most the mild engine builds, taking extra time to check piston to valve ...

Question: Our hot-water heater safety-pressure valve runs all the time and drains all the water out of the tank. Why? Answer: All water heaters have a valve to control temperature and pressure that is ...