What is the circle behind the Hyundai Elantra 1 6 exhaust camshaft sprocket

Hello. Are you talking about a round piece of aluminum? That's the variable valve control body, and if you talk about the semi-circular key on the cylinder block, it's a plug cap.

How to change the chain when correcting: LookThere are three yellow hinges on the chain, two of which are next to each other, one point on each of the two camshafts, and a point on the exhaust camshaft against a yellow hinge on the chainThe points on the intake camshaft are against the two hinges next to each other on the chain.

Camshafts are usually forged from high-quality carbon or alloy steel, and can also be cast in alloy cast iron or ductile iron. The journal and cam working surfaces are heat-treated and polished.

The main body of the camshaft is a cylindrical rod that is approximately the same length as the cylinder block. It is covered with several cams that are used to actuate the valves. The camshaft is supported in the camshaft bearing bore by the camshaft journal, so the number of camshaft journals is an important factor affecting the camshaft support stiffness.

If the camshaft stiffness is insufficient, bending deformation will occur during operation, which will affect the timing of the gas valve.

The sides of the cam are egg-shaped. It is designed to ensure adequate intake and exhaust of the cylinder. In addition, in consideration of the durability of the engine and the smooth operation of the engine, the valve should not be overly impacted by the acceleration and deceleration process during the opening and closing operation.

Failure to do so can result in severe wear of the valves, increased noise or other serious consequences. Therefore, the cam is directly related to the power and torque output of the engine, as well as the smoothness of the operation.

First, turn the camshaft with the pulley to the top dead center, then you look closely at the end of the camshaft with a small notch to align with a small arrow on the top of the tile cover, and then align the other one to this position as well. In order to ensure that there is no deviation in timing, count the number of chains between the two markers after installation. If so, then the timing must be accurate.

I hope what I said can be useful to the landlord.

Elantra timing chain alignment method:

1) There are two ways to timing the cam, one: count the number of teeth. Second, on the mark!

2) The general method of changing the chain: look at the chain with three yellow hinges, two of which are next to each other, one point on each of the two camshafts, the point on the exhaust camshaft is against a yellow hinge on the chain, and the point on the intake camshaft is against the two hinges next to each other on the chain.

The main functions of the engine timing belt refer to:

1) Drive the valve mechanism of the engine, so that the engine intake and exhaust valves are opened or closed at the appropriate time to ensure that the engine cylinder can be inspired and exhausted normally. In some models, such as Volkswagen Jetta (EFI), Santana 2000, Bora, Audi, etc., the timing belt also shoulders the task of driving the water pump.

2) For all engines, the timing belt can never jump teeth or break, if once the tooth jumping phenomenon occurs, the engine can not work normally, there will be unstable idling, poor acceleration or can not hit the car; If the timing belt breaks, the engine will stop immediately, and the multi-valve engine will also cause the piston to bend the top valve, and in serious cases, the engine will be damaged.

Elantra timing chain alignment method:

1) There are two ways to timing the cam, one: count the number of teeth. Second, on the mark!

2) The general method of changing the chain: look at the chain with three yellow hinges, two of which are next to each other, one point on each of the two camshafts, the point on the exhaust camshaft is against a yellow hinge on the chain, and the point on the intake camshaft is against the two hinges next to each other on the chain.

The main functions of the engine timing belt refer to:

1) Drive the valve mechanism of the engine, so that the engine intake and exhaust valves are opened or closed at the appropriate time to ensure that the engine cylinder can be inspired and exhausted normally. In some models, such as Volkswagen Jetta (EFI), Santana 2000, Bora, Audi, etc., the timing belt also shoulders the task of driving the water pump.

2) For all engines, the timing belt can never jump teeth or break, if once the tooth jumping phenomenon occurs, the engine can not work normally, there will be unstable idling, poor acceleration or can not hit the car; If the timing belt breaks, the engine will stop immediately, and the multi-valve engine will also cause the piston to bend the top valve, and in serious cases, the engine will be damaged.

Elantra timing chain alignment method:

1. There are two ways to timing the cam.

1) Count the number of teeth.

2) Pair tags.

The two pinyin have been screened out early, and the point of the chain can't be found, how to install it?

On the Beijing Hyundai Elantra.

Camshaft chains do not require the use of special tools, and the specific operation steps for modern Elantra camshaft chains are as follows:

1. Insert the Beijing Hyundai Elantra crankshaft.

Pin, clockwise.

When the crankshaft of the Beijing Hyundai Elantra is stuck, it is the top dead center of the 1st cylinder.

2. Fix the position of Beijing Hyundai Elantra camshaft.

3. Turn the timing gear of the Beijing Hyundai Elantra crankshaft.

4. Align the gap on the timing gear of the Beijing Hyundai Elantra crankshaft with the yellow chain mark on the timing chain.

5. Place the timing point of the Beijing Hyundai Elantra exhaust camshaft to the yellow link. (Completion of operation) <>

There are two black sections of the chain at the back, which are aligned with the dots and lines of the two camshafts, and the cam of the rear cylinder is exactly the reverse figure-eight.

Hello, the chain is marked, the sprocket is a little.

Summary. Hello, happy to answer your questions.

Hello, happy to answer your questions.

Hello. Elantra with VVT camshaft chain how right.

Hello, you give me the nameplate, there is a colored link behind the camshaft chain, a little above the camshaft, you give me the nameplate first.

Isn't there a gap in the VVT wheel, a little bit of a colored link on the other camshaft?

In 04, the reversal method of the Rand camshaft chain is as follows: 1. Stop the engine of the car and open the engine compartment cover; 2. Disassemble the cam air pipe; 3. Use a wrench to disassemble the locking device on the cam belt; 4. Remove the cam leather from the cam, and then replace the original belt with a new belt. When installing the new belt, be careful not to over-kink or over-compress, so as not to cause the belt to relax or break; 5. Install the locking device and fix it, and then reinstall the cam air pipe.

6. Restart the engine to test whether it is normal.

The left and right camshafts need to be aligned. The left camshaft, the right camshaft mark has a gap on the back cover, it is easy to see, you must pay attention to the installation of the two fixing pin holes must be on the fixing bolts, otherwise according to the wrong initial installation with the slipper will often be installed incorrectly, the engine adopts a multi-point EFI fuel supply method, and the fuel is injected into the air pipe and mixed with air in the form of electronic control.

Elantra maintenanceto control the concentration of the oil-gas mixture, so as to meet the combustion needs under different working conditions. And compared with the direct injection in the cylinder needs to be precisely controlled by the computer, and relies on high pressure to press the fuel from the fuel injector into the cylinder, in order to achieve a high degree of atomization effect, the structure of multi-point EFI is relatively simple, the probability of failure can be greatly reduced, the engine also has CVVT continuous variable timing valve technology, the system is equipped with a control and execution system.