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The crossflow cylinder heads are made from a cast iron alloy, and the five-bearing camshaft is constructed from a case-hardened steel alloy. Although the engine is often described as a twinned Volvo B18 four-cylinder, only some components of the valve train are interchangeable between the two engines.
Volvo Cars has a long reputation as a maker of inline (or straight) engines. This list of Volvo engines gives an overview of available internal combustion engines. When Volvo started in 1927, they ordered their engines from the engine manufacturer Penta in Skövde. The first engine was the inline four-cylinder side valve 28 hp (21 kW) Type DA ...
Installation may involve shrink-fitting, heating the cylinder head and cooling the valve guide so as to ease insertion, then driving the new guide in quickly with a press or a hammer. Once the parts return to room temperature the new valve guide will be solidly in place and ready to be reamed and honed to proper diameter.
In September 2012, Volvo Trucks re-launched the Volvo FH with major technology upgrades, a new design, and more. [3] The company also introduced the first of its Euro VI engines, the D13K [24] which is available as an option on the new Volvo FH and compulsory for new trucks in Europe from January 2014. Other quotable new features are the I ...
A cylinder head of a four valve Nissan VQ engine engine. A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake, and an exhaust).A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.
Swirl flap principle in a four-valve engine. A swirl flap is a small butterfly valve fitted to four-stroke internal combustion engines with at least two intake valves.It is installed inside or just before one of a cylinder's two intake ports, allowing to throttle its intake port's air flow, causing a swirl in the other intake port not fitted with a swirl flap.
Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. Cylinder heads, as manufactured, are usually suboptimal for racing applications due to being designed for maximum durability. Ports can be modified for maximum power, minimum fuel consumption, or a ...
In an internal combustion engine, a head gasket provides the seal between the engine block and cylinder head(s). Its purpose is to seal the combustion gases within the cylinders and to avoid coolant or engine oil leaking into the cylinders. [1] Leaks in the head gasket can cause poor engine running and/or overheating.