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It is the first EcoBoost engine to include twin independent variable cam timing (Ti-VCT), with advertised 10–20% better fuel economy while maintaining the performance of 3.0 L V6s. [ 40 ] [ 41 ] This engine is derived from the 2.0 L Mazda L engine block used by Ford in the North American Focus MK3, but equipped with unique heads, fuel ...
Due to packaging differences in transverse (FWD) applications, the water pump is relocated to the valley behind the timing cover and is driven by the timing chain. The 3.5 L engine will fit into any engine bay the smaller Duratec 3.0 L will, and replaced it in some applications (notably the Ford Taurus) in the 2008 model year.
Unlike the SHO V6, the SHO V8's valvetrain was an "interference" design, one that is shared by many engines built today, meaning that the piston will collide with the valves if the camshaft or timing chain fails. Due to some cam sprocket failures, the engine acquired a reputation for potentially catastrophic failure.
Water pumps on 2008 to 2019 Ford Taurus and 2013 to 2019 Ford Police Interceptor Sedan equipped with the 3.5L Ford Cyclone V6 V6, 3.5L EcoBoost V6, and 3.7L V6 have a tendency to fail and potentially ruin the engine. The water pumps on these engines are internally mounted and driven by the timing chain.
2009–present EcoBoost—1.6 L/2.0 L Ford Sigma 1.6 L and L 2.0 L-engine with Direct Injection Spark Ignition 2013–present EcoBoost —1.5 L 2016–present EcoBlue — Diesel
BMW engineers used a DOHC valvetrain on a production engine for the first time on the M88, with the camshafts driven by a single-row timing chain. [4] Kugelfischer fuel injection [5] was used with individual throttle valves [6] and the distinctive six individual throttle bodies. The construction is an aluminium cylinder head and a cast iron block.
For twin-cam or DOHC engines, VCT was used on either the intake or exhaust camshaft. (Engines that have VCT on both camshafts are now designated as Ti-VCT.↓) The use of variable camshaft timing on the exhaust camshaft is for improved emissions, and vehicles with VCT on the exhaust camshaft do not require exhaust gas recirculation (EGR) as retarding the exhaust cam timing achieves the same ...
The engine was affected by an oil sludge problem and premature timing chain tensioner failure. The oil sludge issue appears to have been caused by issues with the crankcase ventilation system, and while it affected a minority of engines, it could cause complete failure [ 1 ] In some cases, neglected maintenance aided in premature failure ...
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