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New lightweight aluminum construction, an integrated (into the head) exhaust manifold, and a toothed-belt drive for its double overhead camshaft valvetrain that incorporates variable intake and exhaust timing. The only aspect to be carried over from the EA111 engine that preceded it is the 82 mm cylinder spacing.
cast aluminium alloy; two valves per cylinder each with two concentric valve springs, timing-belt-driven single overhead camshaft (SOHC) directly acting on shim-adjustable bucket tappet valve lifters aspiration cast aluminium alloy intake manifold (two-part on fuel injected variant), two cast iron exhaust manifolds fuel system
Further, the timing belt was replaced with a timing chain. This was done to address the reported problems with failed timing belts and tensioner assemblies that caused severe damage when not maintained properly in this interference engine design. One other notable change was the air intake and intake manifold design.
timing belt-driven Bosch VP37 (VerteilerPumpe) electronic distributor injection pump, direct injection ... VW EA 897 is a diesel engine series of Volkswagen AG, which ...
The 1962 Glas 1004 was the first mass-produced vehicle to use a timing belt. 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 ...
Volkswagen use a variator system with two variators, one for each camshaft. Like the Alfa Romeo system, these are electrically-controlled hydraulic units, mounted in the camshaft's timing belt pulley. [11] These systems are fitted to the Volkswagen VR5 and VR6 engines, and also to the W8 and W12 engines.
The Volkswagen EA211 engine (EA = development order), also called modular gasoline engine kit, is a family of inline-three and inline-four petrol engines with variable valve timing developed by Volkswagen Group in 2011. [1] They all include a four-stroke engine and dual overhead camshaft drive into exhaust manifolds. [1]
A pair of poppet valves bent by collision with a piston after timing belt failure. The engine was running at 4500 RPM. In interference engine designs, replacing a timing belt in regular intervals (manufacturers recommend intervals ranging from 60,000 to 104,000 miles (97,000 to 167,000 km)) or repairing chain issues as soon as they are discovered is essential, as incorrect timing may result in ...
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