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It is notable that the second generation system uses engine oil to hydraulically modulate engine valve function. As a result, the system is dependent upon the quality of the oil in the engine. As anti-foaming agents in engine oil are depleted, air may become entrained or dissolve in the oil, delaying the timing of hydraulic control signals.
A redesigned cylinder head and manifold for improved air flow. Variable exhaust valve timing (the LW2 engine only had variable intake valve timing) Specially-developed fuel injectors. New pistons with pentroof-style centre-domes and valve eyelets for a higher compression ratio of 12.2:1 (compared to 10.2:1 for the dual fuel engine).
1905–1914 Cadillac Model D side-valve (acquired as part of the founding of GM) 1906–1923 Oldsmobile Model S side-valve (acquired as part of the founding of GM) 1906–1911 Buick Model D inline-4 [10] (T-head design, the only non-OHV Buick engine ever made) [11] 1909–1915, 1917–1918 Buick OHV [12] (Model 10 had OHV-4)
The two-valve arrangement is retained, though the titanium intake valves by Del West have grown to 2.2 in (56 mm) and sodium-filled exhaust valves are up to 1.61 in (41 mm). Peak output is 505 bhp (512 PS; 377 kW) at 6300 rpm (72.0 BHP/L) and 470 lb⋅ft (637 N⋅m) of torque at 4800 rpm with a 7000 rpm redline. [68]
In 1968, the engine had the chrome covers, but without the Chevrolet name, connected to a PCV valve and a chrome 14 in × 3 in (355.6 mm × 76.2 mm) drop-base open-element air cleaner assembly fitted with a crankcase breather on a 780 cu ft/min (22 m 3 /min) vacuum secondary Holley 4-Bbl carburetor. 1969 Corvette and 1970 Z/28 engines were also ...
The Holden Commodore (VE) is a full-size car that was produced from 2006 to 2013 by Holden—the Australian subsidiary of General Motors.Dubbed Holden's "billion dollar baby", [1] [2] the car was available as the Holden Berlina—the mid-range model—and the Holden Calais, the luxury variant; utility body styles were marketed as the Holden Ute.
In 2008, GM also introduced the Colorado 4x2 2.5 with diesel dual fuel system via CNG tank. [12] It is switchable between diesel fuel and compressed natural gas with the ratio of 65:35. It is also compatible with pure diesel and biodiesel B5 fuel. [13] Location of the tank is on the bed behind the cab. It was available for two cab styles. [13]
One unusual feature of the ISB is that it is a multi-valve pushrod engine design, with four valves per cylinder (popularly referred to as the "24-Valve" Cummins). The engine displaces 5.9 L; 359.0 cu in (5,883 cc), with a 102 mm × 120 mm (4.02 in × 4.72 in) cylinder bore and piston stroke.