How accurate is the timing of the Audi A6 and the timing of the Audi A6 2 8 engine

Go to the 4S store and find someone to check.

If you can't enter the 4S shop, you can go to the general repair shop, which can be solved.

The key is to use the ignition timing lamp. It's the kind of tool that is dedicated to detection.

There are two ways to adjust it:

1) There is no timing lamp adjustment method.

1) First of all, adjust the contact clearance of the distributor to the appropriate one according to the requirements.

2) Find the position of the top dead center of the first cylinder compression. Remove the high-pressure distribution line of the next cylinder. Remove the first cylinder spark plug with a spark plug sleeve, plug the spark plug hole with your thumb or cloth ball, and shake the engine crankshaft.

When you feel the resistance of the cylinder, slowly shake the crankshaft and observe at the same time to align the timing mark.

3) Adjust the current distribution to the moment the contact is closed. After the above parts meet the requirements, turn on the ignition switch, loosen the fixing screws of the distributor shell, and turn the distributor shell to close the contact. Then the distributor is rotated in reverse until the distributor contact is just opened, and a small electric spark can be seen between the contacts at this moment, and then the fixing screw of the distributor shell is tightened, and the octane number is adjusted to the position of zero scale; At this time, the direction pointed by the fire splitter head is the position of the cylinder.

4) Plug in the high-voltage distribution wire on the distributor cover in the ignition order, tighten the screws by hand, and temporarily fix the distributor.

5) When starting the engine to check the ignition timing, if the engine ignition system and fuel supply system are well adjusted at this time, the engine exhaust pipe should be dripping, and the engine vibration and noise should be minimized.

2) Timing lamp adjustment method.

1) Start the engine to warm up and reach the normal working temperature;

2) Connect the two black chucks of the ignition timing lamp to the positive and negative pole piles of the battery respectively, and the sensor is clamped on the high-voltage wire of the first cylinder;

3) Adjust the engine speed to the normal idle state, use the ignition timing lamp to shine on the timing pulley, and check whether the mark on the pulley is the angle specified by the manufacturer (generally 6 10).

4) If you need to adjust, loosen the distributor screw, use the ignition timing to align the timing pulley and then rotate the distributor (left and right) until the scale mark is at the specified value, and finally lock the distributor screw.

Engine timing is an important guarantee for the ignition time and operation of the engine, and the ignition advance angle refers to the angle at which the crankshaft rotates from the beginning of the flashover between the spark plug electrodes to the piston running to the dead center.

If the ignition is too late, the ignition is only ignited when the piston reaches the top dead center, and the mixture is burned when the piston goes down, that is, the combustion is carried out when the volume increases, so that the pressure in the cylinder is reduced, the engine power decreases, and at the same time, the contact area between the hot gas and the cylinder wall increases.

Variable valve timing system.

Piston engines are inlet and exhausted by a lift throttle valve, which is directly or indirectly actuated by a cam on the camshaft. During each intake and exhaust cycle, the cam actuates the valve to open (lift) for a certain amount of time (overlapping time).

At high rpm, the engine needs more air, but the intake valves can close before the required air is fully in, resulting in reduced performance, so the timing of the valves opening and closing is important.

The specific operation steps for Audi engine timing are as follows:

1. Insert the special tool for the Audi A6 crankshaft, turn the Audi A6 crankshaft clockwise, and when it is stuck, it is the top dead center of the 1st cylinder.

2. Install special tools on the rear of the Audi A6 camshaft to fix the position of the Audi A6 camshaft.

3. Use special tools to fix the gear timing of the Audi A6 variable camshaft.

4. Install the Audi A6 timing belt in the direction of the arrow.

5. Ensure that the Audi A6 crankshaft side belt is in place and tighten the Audi A6 timing belt tensioner, and the alignment is completed.

I don't have a few numbers on this pulley and timing shell, please tell me how many cylinders to shake down!

There is no need to fix it, when we do it, just level the two big holes, and mark the crankshaft!

Timing chain.

The main function of the engine timing belt is to drive the valve mechanism of the engine, so that the engine intake and exhaust valves can be opened or closed at the appropriate time, so as to ensure that the engine cylinder can be suction and exhaust normally.

Compared with the traditional belt drive, the chain drive mode is reliable, durable and can also save space, the whole system is composed of gears, chains and tensioning devices and other components, among which the hydraulic tensioner can automatically adjust the tension force, so that the chain tension is consistent, and maintenance-free for life, which makes it the same life as the engine.

Timing chain.

The timing chain is usually made of alloy material, inside the engine, organic oil lubrication, and the service life can theoretically be scrapped until the car, but in fact, the chain tensioner also has a normal wear life, and it should also be checked and replaced.

The transmission parts of the timing system are divided into two types: timing chain and timing belt, which are important valve mechanism components on the engine and are related to the core fate of the engine. If there is a problem on the timing belt or timing chain, it will bring many problems to the engine, and even lead to the scrapping of the entire engine.

Secondly, the user can check the maintenance manual, if the maintenance content indicates how many kilometers to replace the timing belt, it is the belt, if not indicated, it is the chain.

1. The timing belt can not see the rubber surface, and it is broken because the inner stretch is constantly stretched during use, and it is broken when it exceeds the elongation limit. In addition, when it comes to the service cycle, the timing belt should be replaced, even if it is not broken temporarily, because the timing of the belt is inaccurate after it is elongated, which affects the engine performance. Generally, the lower is 6-70,000 kilometers for replacement; The higher is 8-100,000 kilometers to replace the timing belt.

The replacement time of various products and brand cars is different, you can see the specific provisions in the maintenance manual, and replace it at the specified time.

2. If the timing belt is faulty, there is generally a precursor, and the engine will produce abnormal noise. Therefore, it is good to listen frequently to see if the engine sound is normal. Especially when approaching the specified (or reached) replacement kilometers, you should pay more attention to whether the engine produces abnormal noises at any time.

It is advisable to replace the engine in advance close to the specified replacement time so that it can avoid accidents or damage to the engine due to breakage in service.

3. Remove the right wheel first, and then sweep the periphery, that is, remove the generator belt, power pump belt, and air conditioning belt, and then remove the right wheel guard plate, crankshaft pulley, and timing belt upper and lower covers. After aligning the position, remove the idler pulley first, remove the timing belt, and then remove the tensioner. When installing, first install the idler pulley tightly, install the tensioner pulley but don't tighten it, put on the timing belt, start from the idler pulley, press the timing belt, check the timing position of the upper and lower wheels.

Turn it twice by hand and make sure there is no problem before installing the other one. After that, it's simple, and in the future, it's success. Ha ha!

4. The ignition timing has a great impact on the car, the combustion of gasoline in the engine must be ignited by the spark plug jumping out of the spark, to make the engine start smoothly, and burn well, the spark of the spark plug must be strong enough, but more importantly, the time when the spark jumps out must be appropriate and correct, too early and too late will affect the horsepower of the engine, and the time when the spark jumps out of the spark plug is the so-called ignition timing. Generally, it is expressed in terms of the angle of how many crankshaft turns before the piston goes to the top dead center, for example, ten degrees before the top dead center, rather than in time.

Audi A6L is.

The timing chain, the control transmission of the TSI engine crankshaft and camshaft, the transmission of the crankshaft and the balance shaft, the transmission of the crankshaft and the oil pump are all completed by the chain.

Hello, the Audi A6 engine is officially chained and not belted, and most of Audi is chained,

This one can only tell you that it is a belt.

Which year's car 12 and then are chains.

First, the ignition timing does not have a great impact on the car, the combustion of gasoline in the engine must be ignited by the spark plug jumping out of the spark, to make the engine start smoothly, and burn well, the spark of the spark plug must be strong enough, but more importantly, the time when the spark jumps out must be appropriate and correct, too early and too late will affect the horsepower of the engine, the time when the spark jumps out of the spark plug is the so-called ignition timing. It is generally expressed in terms of the angle of how many crankshaft turns before the piston goes to the top dead center, such as 10° before the top dead center, rather than in time.

2. Ignition timing adjustment.

1. Adjust the gap between the power-off contacts of the distributor.

The size of the contact gap not only affects the strength of the spark, but also affects the opening and closing of the contact. If the contact gap is adjusted after adjusting the ignition timing, even if it is a small change. It will destroy the ignition time that has been adjusted, so the contact gap must be adjusted before the ignition timing adjustment, and the gap must be adjusted to 0

35～0.40 mm range.

2. Find out the position of the top dead center of the compression stroke of the first cylinder, and loosen the spark plug of the first cylinder.

Slowly shake the crankshaft, when you hear a deflating sound, it means that the first cylinder is compressing the stroke. Open the sight hole cover on the flywheel housing and slowly shake the crankshaft so that the timing mark is aligned.

3. If there is an octane number selector, it should be adjusted in"0"on the scale position.

4. Determine the position where the contact of the cut-off is just opened.

Unscrew the fixing screws of the distributor housing, and turn the shell along the direction of rotation of the distributor shaft first, so that the two contacts are in a closed position. Then turn on the ignition switch and turn the shell of the distributor in the opposite direction of rotation of the distributor shaft while facing the high-voltage wire of the ignition coil against the tie iron (about 2 3 mm) until a spark is found. Finally, tighten the set screws of the distributor housing.

5. Connect the high-voltage line according to the ignition order

Replace the fire divider, insert the first cylinder high-voltage wire into the plug-in hole where the distributor cover and the conductive piece of the distributor head are aligned, and plug in the high-voltage wire of each cylinder in the order of clockwise direction.

6. Start the inspection:

Start the engine to run to a normal temperature, accelerate suddenly, and if the engine makes a short and slight knocking sound and disappears immediately, the ignition time is appropriate. If there is no knocking sound, that is, the ignition time is late, the fixing screw of the distributor shell should be loosened, and the distributor shell should be rotated a little in the opposite direction of the distributor shaft. If the detonation sound is severe, that is, the ignition time is early, the distributor shell should be turned in the opposite direction of the above until it is suitable.

1. First, use the wheel card to jam the timing wheel of the Audi engine, as shown in the figure below

2. Find the blue timing chain teeth, the colored chain teeth are used to calibrate the timing chain, as shown in the following figure:

3. Align the colored chain with the small dots on the camshaft to correctly calibrate the chain teeth, as shown in the figure below

4. After the calibration is completed, use a wrench to clamp the timing axle tightly, as shown in the following figure

5. Open the clip of the roulette wheel and complete the proofreading on time, as shown in the following figure

Go to the library to find it first, if not, you can go to Jingdong ** online to buy a copy of the "** Car Timing Calibration Quick Check Manual" published by the Chemical Industry Press, the author is Xia Xuesong. Chapter 19, Section 5 of the book is the operation method of the Audi A6L sedan engine timing calibration.

What is the right timing chain for the Audi A6L? What is the right timing chain for the Audi A6L? The Audi A6L timing chain alignment method is as follows:

1. Rotate the engine crankshaft so that the piston of one cylinder is located at the top dead center position. 2. Align the timing mark of the camshaft gear with the timing mark on the chain. 3. Install the crankshaft drive sprocket to ensure that the timing mark on the chain and the mark on the sprocket are in the same position.

4. Ensure that the three timing marks on the timing chain correspond to the two timing signs on the camshaft sprocket and a timing mark on the crankshaft sprocket. The information about the timing chain is as follows: 1. The main function of the engine timing chain is to drive the valve mechanism of the engine, so that the engine intake and exhaust valves can be opened or closed at the appropriate time, so as to ensure that the engine cylinder can be inhaled and exhausted normally.

2. The working of the timing chain is to rely on the high-strength metal chain to connect the sprockets of the crankshaft and camshaft and other components and keep them running synchronously. Rotate the engine crankshaft so that the piston of one cylinder is at the top dead center position; Align the camshaft gear timing mark with the timing mark on the chain; Install the crankshaft drive sprocket to ensure that the timing mark on the chain and the mark on the sprocket are in the same position; Make sure that the three timing marks on the timing chain correspond to the two timing marks on the camshaft sprocket and one timing mark on the crankshaft sprocket. @2019