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Because it was derived from Buick's 215 cu in (3.5 L) aluminum V8, it has a 90° bank between cylinders and an uneven firing pattern due to the crankshaft having only three crank pins set at 120° apart, with opposing cylinders (1-2, 3-4, and 5-6) sharing a crank pin in, as do many V8 engines. The uneven firing pattern was often perceived as ...
It was the product of placing the 283 cu in (4.6 L) 3 in (76.2 mm) stroke crankshaft into a 4 in (101.6 mm) bore 327 cu in (5.4 L) cylinder-block. The 1967 302 used the same crankshaft stroke as the 283, but was forged steel for high-performance duty.
The LB6 ("W-code") 2.8 L (2,837 cc) engine was introduced in 1985 to replace the original LE2. It used multiport fuel injection and produced 130 hp (97 kW) at 4500 rpm and 160 lb⋅ft (217 N⋅m) off torque at 3600 rpm. Applications: 1985 Buick Skylark; 1985–1986 Cadillac Cimarron; 1985–1989 Chevrolet Cavalier; 1985–1986 Chevrolet Celebrity
The centerlines of the cylinders are offset from the centerline of the crankshaft by 12.5 mm (0.49 in). The valve sizes are 39.0 mm (1.54 in) for the intake and 34.3 mm (1.35 in) for the exhaust. Since the two rows of pistons and cylinders share a single cylinder head and head gasket, the piston crown (or top surface) is tilted.
The LD9 Twin Cam was a 2.4-liter Quad 4 variant which debuted in 1996 with balance shafts and a redesigned cylinder head. In the mid-1990s, these engines, like their earlier 2.3-liter counterparts, were known for timing chain failures, as well as water pump failures, in which the water pumps were often difficult and costly to access and replace.
Crankshaft, pistons and connecting rods for a typical internal combustion engine Marine engine crankshafts from 1942. The crankshaft is located within the engine block and held in place via main bearings which allow the crankshaft to rotate within the block. [3] The up-down motion of each piston is transferred to the crankshaft via connecting ...
Until the early 20th century, blow-by gases escaped from the crankcase by leaking through seals and gaskets. It was considered normal for oil to leak from an engine and drip onto the ground, as this had also been the case for steam engines in the decades before. Gaskets and shaft seals were intended to limit the leakage of oil, but they were ...
A connecting rod is connected to offset sections of the crankshaft (the crankpins) in one end and to the piston in the other end through the gudgeon pin and thus transfers the force and translates the reciprocating motion of the pistons to the circular motion of the crankshaft. The end of the connecting rod attached to the gudgeon pin is called ...