So, the engine top end, is usually everything above the cylinder head gasket. This would include everything, in engines that have a overhead camshaft (OHC).
Valve stem seals, control the lubrication of the valve stem, as it moves up and down in the valve guide. By specific design, all valve stem seals are made to include, a precisely controlled leak. […]
Valve train noise, is usually due to excessive clearance, between two internal engine parts. Each valve utilizes, a valve spring that returns it to its, original closed position. So, if a valve spring has broken […]
So, the GM 6.6L Duramax diesel, seems to be causing a lot of controversy. Consequently, one big issue is, what is correct head gasket is for this application. As a result, many installers are just […]
The term “valve lash” is often used, when talking about, valve train adjustment. A valve lifter (sometimes referred to as a tappet or cam follower); follows the contour of the camshaft lobe and transfers that […]
Rocker arms dislodging on certain engines, is a common problem and is usually misdiagnosed. So, a customer comes in and complains of a poor running engine. After diagnosing it, you find engine misfire codes. And, […]
Problems with head bolts, are the number one cause of installation-related gasket failures. Consequently, no gasket is going to seal well; if you use the wrong procedure to tighten the head bolts. For regular head […]
Diagnosing a blown head gasket, just by looking for the symptoms, can be quite misleading. So, a blown head gasket is NOT a single thing, because it can may fail in several different ways. As […]
Valve lash setting, is something most drivers, don’t even think about. First, you need to know, if you even have an adjustable valve train, for valve lash setting. In most cases, you will not have […]
The first sign of sticking valves, is usually engine missing or running rough when cold. But, sticking valves can also simply be, the byproduct of cold-weather operation. In this case, the sticking valves, will often […]
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