2.6.2 Description and Operation
2.6.2.1 Description and Operation
1. Cylinder Head
Cylinder head is made from aluminum alloy casting process.
cylinder valve stem is a mechanical system. valve clearance
can not be automatically adjust, which is very important. The
cylinder valve is an integrated part. OEMs can offer 38 different
sizes to choose from. During the repair, required quite tube
thickness can be calculated according to the formula. For
specific information. Refer to
. With Double overhead camshaft layout, in the
drive sprocket on the intake camshaft there is also a VVT
actuator for adjusting the intake valve timing. For the detailed
working principle. Refer to
.
2. Timing Chain
Dual overhead camshafts are driven by a timing chain. Timing
chain must be replaced every 120,000 kilometers. Timing chain
system consists of timing chain, timing chain guide rails, timing
chain tensioner rail and the timing chain tensioner. Timing
chain tensioner tensioning is provide by the pressure from the
oil pump to ensure the timing chain tensioner maintain a
constant intensity. Timing chain lubrication is provided by the
oil pump nozzles. Refer to
specific information.
3. Intake Manifold
Intake manifold has four independent long ports, using inertia
to improve the engine torque at low speed.
4. Camshaft
Dual overhead camshaft (DOHC) has two camshafts. A
camshaft controls the intake valves, the other camshaft
controls the exhaust valves. The camshaft is located in the
journal in the cylinder head on the top of the engine and fixed
with camshaft cover. The cylinder head camshaft journal
drilling is used for engine oil channel. Engine oil flows to the
camshaft under pressure, lubrication each camshaft journal.
Engine oil flows through the cylinder lid to return to oil sump.
Cam convex corner is formed by machining, at the right time,
according to the appropriate amount, accurately open and
close intake and exhaust valves. Cam convex is lubricated by
high-pressure oil escaped from the engine camshaft.
2-306
Engine Mechanical System JL4G18-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Содержание EC715 2009
Страница 4: ......
Страница 312: ...2 3 4 5 Fuel Injectors FE02 2022b 2 230 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 516: ...2 7 4 3 Front Muffler Assembly FE02 2032b 2 434 Exhaust System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 517: ...2 7 4 4 Rear Muffler Assembly FE02 2033b Engine Exhaust System JL4G18 D 2 435 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 519: ...2 7 4 6 Front Muffler Heat Shield FE02 2034b Engine Exhaust System JL4G18 D 2 437 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1164: ......
Страница 1257: ...Next Step 9 System normal Brake System ABS TCS EBD ESP 6 93 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1278: ...6 7 8 Special Tools and Equipment 6 7 8 1 Trigger Tool FE06 1007b 6 114 TPMS Brake System EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1412: ...9 2 6 4 Warning lamp Always On Schematic 9 14 Airbag System Safety Protection Device EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1703: ...Rear Wiper Motor Hatchback FE11 2009c Body Electric Wipers Washers System 11 219 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1704: ...Washer Fluid Tank Sedan FE11 2010b 11 220 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1705: ...Washer Fluid Tank Hatchback FE11 2010c Body Electric Wipers Washers System 11 221 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1706: ...Rear Washer Nozzle Hatchback FE11 2011c 11 222 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1734: ...Next Step 13 System normal 11 250 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1860: ...BCM FE11 0803b 11 376 Remote Anti theft System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1951: ...Reverse Radar Control Module FE11 1207b Body Electric Reverse Radar 11 467 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1954: ...16 R Control Module Power Supply Gear In Reverse 12 V 11 470 Reverse Radar Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 2008: ......
Страница 2104: ...FE12 0085c 2 Install the hatchback seal 12 96 Interior Trim Body Sheet Metal and Painting EC718 EC718RV EC715 EC715RV 10 2009 ...