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The most common type of block heater is an electric heating element in the engine block, which is connected through a power cord often routed through the vehicle's grille. Some block heaters are designed to replace one of the engine's core plugs and therefore heat the engine via the coolant.
The in-line 6-cylinder, overhead-valve 25/30 hp engine is similar to that used in the 20/25 but increased in capacity to 4,257 cc (259.8 cu in) by increasing the bore from 3.25 inches (8.3 cm) to 3.5 inches (8.9 cm), with the stroke remaining at 4.5 inches (114.3 mm).
The goal for the new model was to increase power & performance. [2] This was achieved by increasing the bore from 3 to 3.25 inches. The stroke was unchanged at 4.5 inches. This increased capacity by 17%, from 3,128 to 3,675cc, and raised the RAC rating up to 25.4 hp. [3] The new 20/25 model was debuted at the 1929 Olympia Motor Show.
Core plugs can also sometimes prevent freeze damage to the motor. During the early stages of the freezing of the engine coolant a freeze plug will sometimes burst, and thus allow the coolant to exit the engine, before it might expand within the engine during the freezing process and potentially crack the engine block. [2]
Sadly, Volkswagen has ditched the manual transmission following the 2024 model year, so the 2025 Golf R will be exclusively offered with a seven-speed dual-clutch automatic gearbox. This story was ...
In an internal combustion engine, the engine block is the structure that contains the cylinders and other components. The engine block in an early automotive engine consisted of just the cylinder block, to which a separate crankcase was attached. Modern engine blocks typically have the crankcase integrated with the cylinder block as a single ...
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