Valve Train
The first sign of sticking valves is usually engine missing or running rough when cold. Sticking valves can also simply be the byproduct of cold-weather operation. In this case, the sticking valves will often work […]
(VVT-i) – Variable Valve Timing is a 2-stage hydraulically controlled cam phasing system. As engine technologies improve and become less expensive, (VVT) continues to improve performance and economy. Manufacturers have now adopted various (VVT) design […]
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. Valve stem seal play a critical role in controlling valve lubrication as well as oil […]
The engine power balance test can be a great way to pinpoint a cylinder that’s under performing. This is an indication a cylinder is not working as well as the other cylinders in the engine. […]
The advantage of variable valve timing (VVT); is that all the factors traditionally associated with a given camshaft grind are no longer fixed. Consequently, making it possible to change valve timing in response to; changing […]
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 […]
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 […]
Hydraulic valve lifter engine noise is usually a symptom that something may be wrong with your engine. All engines make some noise, but when you hear an unusual tapping noise it usually means trouble. A […]
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 […]
Surprize ! 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 […]
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