The 3UZ-FE was cut of the production in 2010. This system monitors the idle speed (ISC system), the cruise control system, the traction control system (TRAC) and the vehicle skid control system (VSC) in Toyota's cars. In this case, the 3UZ-FE has ETCS-i system (Electronic Throttle Control System). Of course, the possibilities of modern cars require the electronically controlled throttle. 8A 8A-FE 8A FE 8AFE GW413EF MR479Q LF479Q3 8A+ Cylinder Head For TOYOTA 1342cc 1.3L Petrol L4 DOHC 16V 11101-09110. For faster warm-up of the catalytic converters, the 3UZ-FE has stainless steel exhaust headers/manifolds with shorter front exhaust pipes compared to the 1UZ-FE. Heads that pass inspection are surfaced for a true mating surface to match up to the machined surface on the block. Cylinder head are Toyota castings that are stripped down bare, inspected, and measured for thickness. The ignition of the 3UZ-FE is controlled by both the DIS (Direct Ignition System) and ESA (Electronic Spark Advance) systems. A long block is a short block with cylinder heads and camshafts installed. The engine heads were fitted with iridium-tipped spark plugs located in the middle of the cylinders. TOYOTA 3L 3L 5L Cylinder Liner Sleeve Kit Set, OEM Number 11461-54060, 11461-54100, 11461-54120 provided by Cylinder Liner, Piston, Piston Ring, Connecting Rod, Crankshaft, Engine Bearing & Slide Bearing manufacturers - Evictory Diesel Spare Parts Co. Each cylinder has an individual ignition coil which more compact and lightweight compared to 1UZ-FE coils. There are two camshafts (timing belt drives intake camshaft, and the exhaust camshafts are driven by gears on the intake camshaft), four valves per cylinder, solid lifters, and big valves (intake valve diameter - 34.5 mm exhaust valve diameter - 29.0 mm both valve stem diameters - 5.5 mm).Īll 3UZ-FE engines have the Variable Valve Timing - intelligent or VVT-i system and Toyota's variable length (geometry) intake manifold named ACIS (Acoustic Control Induction System). In the rest, the engine heads are similar to the late 1UZ-FE heads with VVT-i. The chamber shape was changed due to the enlarged cylinder bores. The 3UZ-FE cylinder heads are almost the same. The engine pistons are not only increased in diameter but also have raised the position of the piston rings.
Like the 1UZ-FE, the 3UZ-FE engine was equipped with a forged steel crankshaft (fully balanced with five main journals and eight counterweights), forged steel connecting rods, lightweight aluminum pistons with steel struts and floating type piston pins. Also, engineers optimized the water passage shape between the bores. For improving rigidity, the thickness of the cylinder walls was increased by 1 mm (from 5.5 mm to 6.5 mm). The thinner sleeves/liners are lighter, provide better cooling, but at the same time losing strength. The new cast-iron cylinder liners are thinner by 0.5 mm (1.5 mm instead of 2 mm). The new block had same 90 degrees 'V' angle, 21 mm cylinder bank offset, and 105.5 mm bore pitch. The 3UZ-FE has aluminum cylinder block with increased bore size up to 91.0 mm while the stroke wasn't changed (82.5 mm).
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