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).
Cylinder head resurfacing, is a very common process today, especially with all the leaking head gaskets. Above all, cylinder head resurfacing, is the most common machining operation done in machine shops to date. But, to […]
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 […]
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 […]
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 […]
Cylinder head gasket leaks, can cause a variety of problems; that no one is ready to deal with. First of all, you can not see the cylinder head gasket; without removing the cylinder head. So, […]
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 […]
You may have heard the term valve job, because older engines frequently needed their valves reconditioned. You rarely hear about, valve problems or valve jobs in today’s engines. Because, modern (OHC) engines have fewer components, […]
Oil consumption is something nobody wants. So, how can worn engine bearings make it worse ? Engine oil consumption past rings, will only get worse when, engine bearings begin to wear out. So, oil consumption […]
So, the main function of automotive engine valves is, to let air in and out of the cylinders. As a result, the valves in your cylinder head, are a vital component of your engine and […]
Valve Springs in your engine have a very basic job, but how they do it is very important. So, one very important point to keep in mind is that they all; lose tension and weaken […]
Valve Lifters, Hydraulic And Mechanical. So, what is the big difference. Both hydraulic and mechanical valve lifters have the same job, but do it differently. They both follow the contour of the camshaft lobe and […]
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