Send a Message
to cartool

Comments

20

Joined

Jan 3, 2013

cartool's Favorites

cartool Profile

Forums Owned

Recent Posts

Autos

What's Function of T300 Auto Key Programmer?

X100 + is better than SBB,T300 or other auto anti matching equipment. http://www.vtoolsh op.com/auto-key-pr ogrammer-x100-auto -key-programmer_p6 60.html  (Sep 17, 2013 | post #2)

Autos

i need driver licens in usa

driver licens is important  (May 23, 2013 | post #10)

Portsmouth, OH

What do u think of your local fire dept??

I think their jod is dangerous.Maybe they have complete equipment,but they have to take risks to save people.  (Mar 19, 2013 | post #6)

Autos

when someone struggles with driving...

Because there is will,there is a way.you say you don't know how to drive,but why you have get the license?Maybe first you need ask the good drive they how to drive.Because driving contains many details.Second you should know details clearly.Finally.ke ep miand and to drive the car. Fighting!  (Feb 26, 2013 | post #2)

Auto Parts

quality auto parts a scam

Online shopping is very convenient,but also there have a lot of risky,if you not careful,you will meet laier or Bad faith merchants.You money and need goods will be cheated of by them.If as much as possible,we can buy we need in the store.  (Feb 1, 2013 | post #29)

Autos

How and why Nissan nearly killed off Infiniti

Launched in 1990, Infiniti was expected to be Japan's answer to BMW (Lexus would end up chasing Mercedes-Benz). Yet things went awry almost right out of the gate. Overlooking the fledgling automaker's now infamous early marketing campaign, its product line over the past twenty-four years has been a roller coaster ride of strong hits (Q45, FX35 and G35) and frustrating misses (M30, I30 and QX4). In a recent interview with Ward's Auto at the Detroit Auto Show, Nissan Executive Vice President Andy Palmer revealed that the company's luxury brand was almost cancelled by CEO Carlos Ghosn as unnecessary. Infiniti, like most premium marques owned by a volume manufacturer, had fallen into the trap of losing autonomy and pushing its high-end product just like its mainstream models. The one obvious exception to this industry blunder, said Palmer, was VW Group's Audi brand. Realizing that Audi's impressive comeback over the past two decades shamed even that of actor Robert Downey Jr., Nissan hired Audi veteran Johan de Nysschen to bring Infiniti to its intended glory – and protect it from extinction.  (Jan 28, 2013 | post #2)

Autos

Gasket

The cylinder head is attached to the block with high-tensile steel studs. The joint between the block and the head must be gas-tight so that none of the burning mixture can escape. This is achieved by using cylinder head gasket. This is a sandwich gasket, i.e. a sheet of asbestos between two sheets of copper, both these materials being able to withstand the high temperature and pressures within the engine.  (Jan 23, 2013 | post #1)

Independence, KS

new school board member

everythins like coin has two sidea,besides,different people have different thoughts  (Jan 22, 2013 | post #17)

Auto Parts

Cylinder Head

The cylinder head fastens to the top of the block, just as a roof fits over a house. The underside forms the combustion chamber with the top of the piston. The most common cylinder head types are the hemi, wedge, and semi-hemi. All three of these terms refer to the shape of the engine's combustion chamber. The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by the push-rods. Sometimes the camshaft is fitted directly into the cylinder head and operates on the valves without rockers. This is called an overhead camshaft arrangement. Like the cylinder block, the head is made from either cast iron or aluminum alloy.  (Jan 18, 2013 | post #1)

Auto Parts

Engine Terms

Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn. The power stroke “uses up” the gas , so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture :this control of gas movement is the duty of the valves ;an inlet valve allows the new mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job. Engine terms are : TDC(Top Dead Center):the position of the crank and piston when the piston is farther away from the crankshaft. BDC(Bottom Dead Center):the position of the crank and piston when the piston is nearest to the crankshaft. Stroke : the distance between BDC and TDC; stroke is controlled by the crankshaft. Bore : the internal diameter of the cylinder. Swept volume : the volume between TDC and BDC. Engine capacity : this is the swept volume of all the cylinder e.g. a four-stroke having a capacity of two liters(2000cm) has a cylinder swept volume of 50cm. Clearance volume: the volume of the space above the piston when it is at TDC. Compression ratio = (swept vol + clearance vol)\(clearance vol) Two-stroke : a power stroke every revolution of the crank. Four-stroke : a power stroke every other revolution of the crank..  (Jan 15, 2013 | post #1)

Auto Parts

Engine and power

Engine is used to produce power. The chemical energy in fuel is converted to heat by the burning of the fuel at a controlled rate. This process is called combustion. If engine combustion occurs with the power chamber. ,the engine is called internal combustion engine. If combustion takes place outside the cylinder, the engine is called an external combustion engine. Engine used in automobiles are internal combustion heat engines. Heat energy released in the combustion chamber raises the temperature of the combustion gases with the chamber. The increase in gas temperature causes the pressure of the gases to increase. The pressure developed within the combustion chamber is applied to the head of a piston to produce a usable mechanical force, which is then converted into useful mechanical power.  (Jan 11, 2013 | post #1)

Auto Parts

Principal Components of car

Today's average car contains more than 15,000 separate, individual parts that must work together. These parts can grouped into four major categories: engine, body, chassis and electrical equipment. The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine :gasoline(also called a spark-ignition engine) and diesel(also called a compression-igniti on engine).Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the transmission. An automobile body is a sheet metal shell with windows, doors, a hood, and a trunk deck built into it. It provides a protective covering for the engine, passengers, and cargo. The body is designed to keep passengers safe and comfortable. The body styling provides an attractive, colorful, modern appearance for the vehicle. The chassis is an assembly of those systems that are the major operating part of a vehicle. The chassis includes the transmission, suspension, steering, and brake systems.Transmissi on systems ― conveys the drive to the wheels. The main components are clutch, gearbox, driveshaft, final drive, and differential.Suspe nsion― absorbs the road shocks.Steering ― controls the direction of the movement.Brake ― slows down the vehicle. The electrical system supplies electricity for the ignition, horn, lights, heater, and starter. The electricity level is maintained by a charging circuit. This circuit consists of the battery, alternator (or generator). The battery stores electricity. The alternator changes the engine's mechanical energy into electrical energy and recharges the battery.  (Jan 9, 2013 | post #1)