Toyota Car Parts - 3S-GE Engines

Built into the cylinder block are coolant channels, which cool the block which houses the pistons A baffle is used to ensure that there is sufficient oil available in the oil pan, as the oil moves around the reservoir during movement of the vehicle At the bottom of the cylinder block is an oil pan which stores the oil The cam journals are lubricated by an oiler port located in the middle of the camshaft The top of the cylinders are covered by the cylinder head The cast iron cylinder block holds four cylinders which are approximately two times the length of the piston stroke To adjust the valve clearance, adjust the shims above the valve lifters The 'Outer Shim Type System' allows for the replacement of the shims without the need to remove the camshaft The intake manifold has four independent ports and benefits from inertia build up to improve engine torque at low and medium speeds. Compression rings 1 and 2 prevent exhaust leakage from the combustion chamber while the oil ring works to clear oil off the cylinder walls, preventing excessive oil from entering the combustion chamber The cam journal is supported on five points between the valve lifters of each cylinder and on the front of the cylinder head. The Toyota 3S-GE is an in-line 4 cylinder engine manufactured by Toyota and tuned by Yamaha Motor Company Ltd. Oil holes are located in the middle of the crankshaft to provide oil to the connecting rods, bearing, pistons and other moving components. The pent-roof combustion chambers are complemented by a cross-flow intake and exhaust layout. The pistons are made from an aluminium alloy, designed to withstand high temperatures. This is sometimes referred to as a 'non-interference' engine. This prevents oil from being shifted away from the oil pump suction pipe The first compression ring and the oil ring are made of steel, the second compression ring is made of cast iron. The crankshaft, located within the crankcase, rotates on five aluminium alloy bearings and is balanced by eight weights. An indentation is incorporated into the piston head to prevent the pistons from hitting the valves, should the timing belt break (this is not true of the 3S-GE BEAMS motor). All 3S-GE engines had a displacement of 2 Its cylinders are numbered 1-2-3-4 with cylinder number 1 beside the timing belt. Piston pins holding the pistons in place are locked by snap rings.

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