A Cylinder Head is usually located on the top of the engine block. It serves as a housing for components such as, the intake and exhaust valves, springs, lifters and the combustion chamber.
So, to determine the health of a head gasket, between two cylinders, try doing a bubble test. If you believe you have a leak, but just cannot find it, doing a bubble test may be […]
So, ford has used emission thermactor plugs, for small block heads for many years. These emission thermactor plugs are useful, when installing a pair of emissions legal heads, on a non-emissions engine. So, ford designed […]
The term “valve lash” is often used when talking about, valve train adjustment. A valve lifter follows the contour of the camshaft lobe, and transfers that motion to open and close the valves. (sometimes referred […]
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, […]
Cylinder head cracking, can cause catastrophic damage to your engine. And, in some cases, the crack may be so severe, that replacing the complete engine is the only cure. But, most causes of cylinder head […]
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. However, many […]
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 […]
Valve Springs, have a very basic job, but how they do it, is very important. By the time they have 100,000 miles on them, they have probably lost up to 10%, of their tension. The […]
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 parts […]
GM 3100 – 3400 engine issues, are still happening and are being repeated. We still have leaks, installation problems, as well as cylinder head and rocker bolt issues. That’s because, most people are still confused, […]
Learning how to machine, install and grind valve seats, can help solve many, valve leakage and valve burning issues. Firstly, the growth of the valve seat market, can be traced back to the early 1970s. […]
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