Valve Train
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 […]
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, […]
So, with a little practice, you can gain the experience and knowledge to know, what engine noises mean. You should always take the extra time, to make a proper noise analysis, before doing any engine […]
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 […]
Valve guide wear, refers to excessive clearance, between valve stem and valve guide. As valve guides wear, the side to side movement, can cause valves to seat improperly. Valve leakage, causing compression loss, is another […]
Exhaust and Intake Pushrods, on G.M. 3.1 and 3.4 engines are different lengths. Quite often I am seeing, bent pushrods and valves, when they are mixed up. Consequently, Exhaust pushrods on G.M. 3.1 and […]
The purpose of the valve stem seal is, to prevent the oil from the cylinder head; entering the combustion chamber. So, the valve stem seal, plays a critical role in, controlling valve lubrication, as well […]
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