Andrew Markel discusses common symptoms pointing to a failed or leaking head gasket, and the tools needed to diagnose the issues. Sponsored by Bar’s Leaks.
Hydraulic lifters are precision-fit assemblies.
The basic function of a valve lifter is pretty simple. It sits on the camshaft and transfers the motions of the cam lobe up through the pushrods and rockers to open and close the valves. The size and shape of the cam lobe under the lifter (multiplied by the ratio of the rocker arms) determines valve lift and duration. As such, the lifter just follows the motions of the cam. But it does play a role in valvetrain lash (clearance) and noise.
Learn what power steering fluid is, why it’s crucial for your customers vehicle, and how to choose the right type.
This video covers how detergents and surfactants in Diesel DEF Medic Plus clean the DEF system. This video is sponsored by Rislone.
Discover key factors to consider for quality hub assemblies and how they impact vehicle performance and longevity.
It’s essential to understand the differing needs of manufacturers, shops, technicians, and consumers.
Customers generally look to superchargers for the instant throttle response, not fuel economy.
To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.
Timing chain guides are designed to wear, but the guides are designed to last the engine’s life.
Why can’t you trust some spark tests?
