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The camshaft drive belt also required changing at the recommended intervals, which was a pretty involved job, not least because of poor access in the under-floor engined LT vans, and the necessity of special (and expensive) locking tools to carry out the replacement, which have always been scarce and are becoming increasingly difficult to ...
The narrow angle of each set of cylinders allows just two overhead camshafts to drive each pair of banks, so the W12 engine has the same number of camshafts as a V12 engine. The W12 engine has a very compact design for a 12-cylinder engine, with the overall size of the 6.0 L (366 cu in) engine being smaller than Volkswagen's contemporary 4.2 L ...
The narrow angle of each set of cylinders allows just two overhead camshafts to drive each pair of banks, so the WR12 engine has both a crankshaft design, and the same number of camshafts as the V-12 engine. Where the VR6 is a staggered-bank straight 6, the WR12 in turn is a staggered-bank V-12 in terms of engineering design.
The Volkswagen D24TIC is a 2.4-litre inline-six-cylinder (R6/I6) single overhead camshaft (SOHC) diesel engine, formerly manufactured by Volkswagen Group from August 1986 to December 1998. [ 1 ] Technical description and rated outputs
Diagram showing the differences in port lengths between a V6 and VR6. VR6 engines share a common cylinder head for the two banks of cylinders. Only two camshafts are needed for the engine, regardless of whether the engine has two or four valves per cylinder. This simplifies engine construction and reduces costs.
The 1966 Pontiac OHC Six engine was the first US mass-produced vehicle to use a timing belt, [21] [22] while the 1966 Fiat Twin Cam engine was the first mass-produced engine to use a timing belt with twin camshafts. Carmakers began to adopt timing belts in the 1970s and compared to timing chains are less expensive, smaller, lighter, quieter ...
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The cam can be seen as a device that converts rotational motion to reciprocating (or sometimes oscillating) motion. [clarification needed] [3] A common example is the camshaft of an automobile, which takes the rotary motion of the engine and converts it into the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders.