Toyota Car Parts - 3S-GE Engines

Piston pins holding the pistons in place are locked by snap rings This prevents oil from being shifted away from the oil pump suction pipe The spark plug is located in the center of the combustion chamber A single timing belt drives the intake and exhaust camshaft Oil holes are located in the middle of the crankshaft to provide oil to the connecting rods, bearing, pistons and other moving components The Toyota 3S-GE is an in-line 4 cylinder engine manufactured by Toyota and tuned by Yamaha Motor Company Ltd. The cam journal is supported on five points between the valve lifters of each cylinder and on the front of the cylinder head The first compression ring and the oil ring are made of steel, the second compression ring is made of cast iron 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 The cast iron cylinder block holds four cylinders which are approximately two times the length of the piston stroke The cam journals are lubricated by an oiler port located in the middle of the camshaft. There are four generations of the 3S-GE, which were used in the Toyota Celica, MR2, Toyota Caldina, Toyota Altezza and Lexus IS200 Its cylinders are numbered 1-2-3-4 with cylinder number 1 beside the timing belt. 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. This is sometimes referred to as a 'non-interference' engine. The 'Outer Shim Type System' allows for the replacement of the shims without the need to remove the camshaft. 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. The intake manifold has four independent ports and benefits from inertia build up to improve engine torque at low and medium speeds. Additionally, the 3S-GTE engines were based on the 3S-GE designs.

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