Altezza camshafts reassembling and timing

toyota altezza 3s ge camshaft timing

The Toyota S Series engines are a family of straight-4 engines with displacement from 1.8 L to 2.2 L produced by Toyota Motor Corporation from January 1980 to August 2007. The series has cast iron engine blocks and alloy cylinder heads.

Toyota 3S-GE engine
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The Toyota 3S-GE is an in-line 4 cylinder engine manufactured by Toyota and tuned by Yamaha Motor Company Ltd. Its cylinders are numbered 1-2-3-4 with cylinder number 1 beside the timing belt. The cylinder heads are made of aluminium alloy. The pent-roof combustion chambers are complemented by a cross-flow intake and exhaust layout. The spark plug is located in the center of the combustion chamber. The ignition order of the cylinders is in the 1-3-4-2 order.

The crankshaft, located within the crankcase, rotates on five aluminium alloy bearings and is balanced by eight weights. Oil holes are located in the middle of the crankshaft to provide oil to the connecting rods, bearing, pistons and other moving components.

The intake manifold has four independent ports and benefits from inertia build up to improve engine torque at low and medium speeds.

A single timing belt drives the intake and exhaust camshaft. The cam journal is supported on five points between the valve lifters of each cylinder and on the front of the cylinder head. The cam journals are lubricated by an oiler port located in the middle of the camshaft.

The "Outer Shim Type System" allows for the replacement of the shims without the need to remove the camshaft. To adjust the valve clearance, adjust the shims above the valve lifters.

The pistons are made from an aluminium alloy, designed to withstand high temperatures. 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). This is sometimes referred to as a "non-interference" engine. Piston pins holding the pistons in place are locked by snap rings.

The first compression ring and the oil ring are made of steel, the second compression ring is made of cast iron. 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 cast iron cylinder block holds four cylinders which are approximately two times the length of the piston stroke. The top of the cylinders are covered by the cylinder head. Built into the cylinder block are coolant channels, which cool the block which houses the pistons.

At the bottom of the cylinder block is an oil pan which stores the oil. 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. This prevents oil from being shifted away from the oil pump suction pipe.

-Wikipedia (Toyota 3S-GE engine - Wikipedia, the free encyclopedia (http://en.wikipediawiki/3S-GE))

Toyota ZZ engine
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The Toyota ZZ engine family is a straight-4 piston engine series. The ZZ series uses an aluminum engine block and aluminum DOHC 4-valve cylinder heads, a first for Toyota. The valve camshafts are chain driven. The two 1.8 L members of the family, the 1ZZ and 2ZZ, use different bore and stroke. The former was optimized for economy and torque, while the latter is a "square" design optimized for high-RPM power. The ZZ family replaced the extremely popular cast-iron 4A engines.

Wikipedia (Toyota ZZ engine - Wikipedia, the free encyclopedia (http://en.wikipediawiki/Toyota_ZZ_engine))


Toysport:
"In 1992, the 4AGE 1600 received VVT (Variable Cam Timing), individual throttle bodies, and an extra Valve > 4AGE 20V! It produced 160 HP, the equivalent of 10 HP for every 100cc- racing engine output comparable to the early days of Twin Cams! By 1997, the JZ six cylinder models and the 3SGE Beams gained VVT heads too.

In it’s final reiteration the 3SGE gained Dual VVTi head and remains in production for the Altezza. The 3SGTE never had the VVTi head, but internal upgrades and different turbos allowed it to produce 260 HP.

The 2ZZGE 1800 is the newest and maybe LAST G series Twin Cam engine. The use of aluminum blocks is also a first for a Toyota performance engine. Up-graded features include variable timing and variable lift, and tuned intake manifold."

3SGE History

The Toyota 3S-GE is an in-line 4 cylinder engine manufactured by Toyota and tuned by Yamaha Motor Company LTD. Its cylinders are numbered 1-2-3-4 with cylinder number 1 beside the timing belt. The cylinder heads are made of aluminium alloy. The pent-roof combustion chambers are complemented by a cross-flow intake and exhaust layout. The spark plug is located in the center of the combustion chamber. The ignition order of the cylinders is in the 1-3-4-2 order.

The crankshaft, located within the crankcase, rotates on five aluminium alloy bearings and is balanced by eight weights. Oil holes are located in the middle of the crankshaft to provide oil to the connecting rods, bearing, pistons and other moving components.

The intake manifold has four independent ports and benefits from inertia build up to improve engine torque at low and medium speeds.

A single timing belt drives the intake and exhaust camshaft. The cam journal is supported on five points between the valve lifters of each cylinder and on the front of the cylinder head. The cam journals are lubricated by an oiler port located in the middle of the camshaft.

The "Outer Shim Type System" allows for the replacement of the shims without the need to remove the camshaft. To adjust the valve clearance, adjust the shims above the valve lifters.

The pistons are made from an aluminium alloy, designed to withstand high temperatures. 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). This is sometimes referred to as a "non-interference" engine. Piston pins holding the pistons in place are locked by snap rings.

The first compression ring and the oil ring are made of steel, the second compression ring is made of cast iron. 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 cast iron cylinder block holds four cylinders which are approximately two times the length of the piston stroke. The top of the cylinders are covered by the cylinder head. Built into the cylinder block are coolant channels, which cool the block which houses the pistons.

At the bottom of the cylinder block is an oil pan which stores the oil. 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. This prevents oil from being shifted away from the oil pump suction pipe.