Cylinder Head Overview

Cylinder Head Overview
Engine cylinder head 4A-F, 5A-F, 4A-FE. 5A-FE, 7A-FE and 4A-OE have many common structural features, namely:
• Shatrova combustion chamber with four valves per ¬ tyrmya each of the cylinder (2 intake and 2 exhaust). In addition to 4A-OE (AE101, AE111), in co-torogo five valves per cylinder ¬ a cylinder (3 intake and 2 exhaust).
• 2 camshafts (intake and exhaust valves), cams which act on the valves through push-glasses (lifters) installed in the distribution points ofthe body head.
• Seats BOXIES shaft bore formed in the housing ¬ mi head and a shaft bearing caps.
• • camshaft drive by ploskozubchatym
belt.
• Inlet and outlet channels are located on opposite sides of the cylinder head.
• The side surfaces of block ¬ ka heads are flat mating ¬ styami for intake and exhaust manifolds.
• supply coolant to the cylinder head and its removal from the head through the outer tubes of accession.
• The same constructive mount valve and method of formulation of their regular thermal gaps (except 4A-0E (AE101, AE111)).
At the same time, cylinder heads these engines have a noticeable con ¬ constructively the differences which have a significant impact on the procedures for their removal from the engine and then install the engine, as well as partial ¬ but the procedures for assembling and disassembling of-agile. These differences are related to:
• With the system power engine (carburetor or fuel injection).
• The design of the intake collector ¬ ra, which is also partially dependent on the supply system, and partly from the system ¬ subject of engine control, for example ¬ action, the presence of the bypass of the spirit beyond excited ¬ throttle on the forced modes of the holo ¬ stack or the presence of an additional ¬ GOVERNMENTAL dampers, mounted directly in front of non-cluster inlet ¬ pans (a system with variable-geometry intake manifold ¬ symmetry), etc.
• With the drive way distribu ¬ Tel'nykh shaft from the crankshaft toothed belt. For example, the motion ¬ gatelyah 4A-F, 5A-F, 4A-FE, 5A-FE and 7A-FE directly toothed belt is driven by the camshaft you only ¬ pusknyh valves, and have him cut Th ¬ ¬ gear transmission leads converges camshaft tumor ¬ sknyh valves in the engine 4A-OE drive by both camshafts directly ¬ tively ploskozubchatym belt, oh-toothed pulleys vatyvayuschim, mouth ¬ lished in each distribu ¬ relatively shaft.
• With features form the upper surface of the head, which determines the shape of head cover of the cylinder (or number), eg in the engine-4A DE (AE92, AM 1 and AT160) head covered with three covers, and engine-4A DE (AE1 01, AE111) - two covers.
• The location and shape of the nozzle inlet and outlet cooling giving liquid.
• The location and drive the distributor (or pooled unit plugs), such as motor-in accelerators 4A-F, 5A-F, 4A-FE, 5A-FE 7A-FE and drive at the rear end of the camshaft, you pusknyh valves and in the engine-4A DE - on the left side of the shaft (as viewed from flywheel side).
• The design features and the location of the valve system re ¬ circulation of exhaust gases and crankcase ventilation system.
• The physical layout is plivopodvodyaschih-tubes to forsun ¬ kam (engines with fuel injection in Benzie ¬), vacuum tubes for engine control systems, electrical motor ¬ vodka, etc.
Above all, even the cylinder head engines of the same type may vary depending on the vehicle model or, depending on how the organization of motor control or his work, obtain the process, for example, a system for organizing the working of the process of providing job engine ¬ telya to lean the mixture. In this regard, here are de ¬ tackles all the variants of cylinder heads, which are used in these engines. This will eliminate possible misunderstandings in the pro ¬ conduct of operations to dismantle the second ¬ deft cylinder, as well as its assembly and disassembly.
Removing the cylinder head 4A-5A-P and P
1. Disconnect the negative-terminal of the battery.
2. Drain the coolant (see "Cooling System").
3. Remove nipple discharge cooling fluid ¬ giving, by removing two bolts.
4. Remove the exhaust manifold. Pre-clear:
a) The support rack exhaust the collector, by removing two bolts.
Cylinder Head (4A-5A-F and P). 1 - number 2 guard timing belt, 2 - number 3 guard timing belt, 3 - toothed pulley races ¬ predelitelnogo shaft exhaust valve, 4 - bolt sprocket camshaft drive exhaust valve (MV = 47 Nm), 5 - support column inlet manifold, 6 - bolt head block ¬ ka cylinders (MZ = 60 nm), 7 - spark plug, 8 - protection tube plugs, 9 - fuel pump, 10 - toplivopodka insulator-framing the pump, 11 - inlet manifold 12 - bolt the intake manifold (MH = 19 N m), 13 - Intake manifold gasket, 14 - pru ¬ zhinnoe locking ring, 15 - Spring wavy washer, 16 - ¬ relatively auxiliary gear camshaft intake valves, 17 - pru ¬ Jin gear camshaft, 18 - installation of the protective tube plugs, 19 - cap valve gear (head cylinder block-ka), 20 - gasket cylinder head cover, 21 - camshaft bearing cap, 22 - screw caps under ¬ bearings camshaft Shaft (MS = 13 nm), 23 - camshaft intake valves, 24 - camshaft exhaust valve ¬ new, 25 - seal camshaft, 26 - adjusting washer (to adjust the thermal gap in valves), 27 - valve tappet 28, - crackers, 29 - plate springs, 30 - valve spring, 31 - maslootrazha-tion valve cap, 32 - valve guide, 33 - valve, 34 - valve, 35 - body cooling liquid supply nozzle ¬ STI, 35 - tube drainage of coolant, 37 - cylinder head gasket, 38 - the heat insulating top cover vent the collector, a 39-nut sprinkle the exhaust manifold (MZ = 25 Nm). 40 - exhaust manifold, 41 - lower heat-insulating cover issue-tion of the collector.
Then, by removing 3 screws and 2 nuts, remove the exhaust manifold with a gasket, and then by removing the 3 screws, remove the lower-regulating thermal insulation sleeve.
5. Remove the ignition, the combined unit Gahnia (sensor-type, with the ignition of the coil (block contactless ignition system)), after disconnecting the wires of high voltage to the spark plugs and removing the 2 bolts attaching the sensor-distribution of the divisor.
6. Remove the nozzles for supplying coolant to the cylinder head, pre-joining of two hose.
7. Remove the fuel pump with an insulator, by removing two screws.
• - Attention: but remove the protective tube over the candle