In the article we will talk about how to replace the chain on a Peugeot 308 in a garage. The car is not very representative, and the fact that it is a foreign car does not mean that only an experienced mechanic can repair it. You just need to understand the principle of operation of the internal combustion engine, have the desire and tools to carry out any repairs yourself. This is a budget car, which is not much different in design from the domestic Prior and Ten (except that they are much more comfortable and, despite the fact that it is a Pyzhik, more reliable).
Features of the timing drive
The Peugeot 308 is equipped with a durable and technologically advanced EP6 engine. It is naturally aspirated, which means that there are no turbines or intercoolers in it. This engine can also be found on other Peugeot models, for example on the 308. If you have little experience, then it is better to entrust serious engine repairs to professionals.
But if we are only talking about replacing the chain, then you can deal with this problem in one evening. But you need to know when to replace it, as well as the location of all the marks on which the camshafts and crankshafts are installed. We will talk about this in our article.
Video
The video from the Auto Repair channel clearly demonstrates the entire process described above.
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When is replacement needed?
Despite the rather flimsy appearance of the timing chain, it has a long service life. On atmospheric EP6 engines it lasts for about 170 thousand km. But this is subject to the condition that all technical regulations will be unquestioningly observed, and the attitude towards the engine will be as careful as possible. But even if the engine is not naturally aspirated, but with a turbine, the timing drive lasts about the same. But there are minor nuances when diagnosing the condition of the timing chain; we will definitely mention this in our article.
The repair procedure is no different for naturally aspirated and turbocharged types. It is worth noting that a break is unlikely to occur, so replacement should only be carried out if certain symptoms are present, which are sometimes quite difficult to identify. Now we will look at all the symptoms that indicate that the timing drive needs to be repaired.
Correct replacement and repair of the timing belt - guaranteed results
If it turns out that something needs to be changed in the unit, our mechanics will do the most diligent selection and adjustment of the units. In particular, we replace chains, tensioners, dampers, camshaft and crankshaft sprockets and bolts, all the necessary gaskets and seals. The work will be done on time, and the car will return to efficiency, dynamics, and factory power. You can sign up for diagnostics and replacement directly on the AutoPSA website, or by calling the number indicated there.
We also repair and replace cylinder head gaskets on EP6 engines.
Main symptoms of failure
Among the main symptoms that clearly indicate that the chain in the Peugeot 308 1.6 liter needs to be replaced are the following:
- The noise level is too high when the engine is idling and at low speeds.
- Engine trouble, unstable starting.
- Oil consumption increases. It is worth considering that the norm is up to 0.5 liters for every 1000 km.
- Gasoline or gas consumption increases (depending on what the engine is running on).
- During diagnostics, the engine control unit may indicate the presence of an Antipollution system faulty error. It is also possible that other errors may appear that are related to the timing system.
- The Check Engine light comes on.
It's also worth noting that there may be more symptoms, so it's best to go by mileage. You also need to pay attention to the fact that in some cases mileage is not a significant indicator. For example, in cities, cars cost more than they drive. Therefore, it makes more sense to switch to an engine hour count rather than track mileage.
Timing chain selection: original and analogues
Engines of the EP 6 type are installed on Peugeot, Citroen and Mini-Cooper cars in different generations; their analogue timing chain kits are also suitable for a certain type of unit. When choosing, take into account the catalog number and article number, which corresponds to the VIN of the car.
The price of analog sets may vary depending on the brand and country of manufacture. When purchasing, pay attention to the full labeling of the product, which should have a barcode of the country of manufacture, an article number, and pictograms of OE and EU certificates of conformity. Counterfeit kits made in China that do not have a brand license are often passed off as analogues.
How to check chain wear?
Before starting repairs, you need to make sure that it is really needed and the chain needs to be replaced. After all, the symptoms that were listed above can sometimes indicate other malfunctions that do not even relate to the gas distribution mechanism. In order to check the condition of the timing chain, you need to use a set of special tools (JTC, Likota).
If you do not have such a set, then setting marks and checking the condition of the circuit will be problematic. And most importantly, it is generally impossible to adjust the phase adjustment mechanism. The cost of the set is about 8 thousand rubles. The kit includes a device that allows you to evaluate the degree of chain stretch. As you understand, it is better to find such a kit from friends than to purchase it. After all, you will replace the chain on your Peugeot 308 no more than once every 5 years (after all, few people drive more than 30 thousand km in a year).
How to check wear?
The mechanism for diagnosing the condition of the drive chain is a threaded bushing; it is enough to screw it in instead of the tensioner. First you need to install the large bushing. In this case, you should not use keys or any other tool; everything is done by hand.
Then you need to screw the rod into this bushing until it stops, as in the previous case, by hand. Then you need to unscrew the device from the socket and measure the length of the rod, counting from the beginning of the thread. Nominal tensile strength:
- For turbocharged engines – 67..71 mm.
- For naturally aspirated engines – 70..73.5 mm.
Catalog numbers
If, after taking measurements, you find out that the Peugeot 308 chain needs to be replaced, you will need to buy spare parts. But to do this you need to know their catalog numbers, use the table.
| Part name | Catalog number |
| Original drive chain | 0816-N9 |
| Intake camshaft pulley | 0805-K1 |
| Exhaust camshaft pulley | 0805-K3 |
| Camshaft seal | 0807-39 |
| Crankshaft pulley | 0513-C8 |
| Camshaft gear bolts (2 pcs.) | 0806-77 |
| Tensioner | 0829-G3 |
| Upper damper (original) | 0 818-41 |
| Left damper | 0818-33 |
| Right pacifier | 0818-30 |
| Crankshaft hub | 0513-E1 |
| Crankshaft oil seal | 0514-C8 |
| Bolt for fixing the crankshaft hub | 0516L8 |
| Valve cover gasket | 0249-E7 |
Peugeot 308 timing chain kits
| Brand | A country | Original/analogue | vendor code | Catalog number | Price |
| P.S.A. | France | original | PSA-LOW-KIT1 | V861831880 | 8,600 rub. |
| Freccia | Italy | original | TK081021 | 0816-H9 | 7,800 rub. |
| BGA | Great Britain | analogue | TC1025K | TC1025KBGA | 7,300 rub. |
| MASTERKIT | Germany | analogue | 77B0052K | V861831780 | 6,700 rub. |
| FEBI | Germany | analogue | 30345 | 27504, 27505 | 7,500 rub. |
| KM International | Italy | analogue | KCD052 | 816H9S1 | 6,900 rub. |
What tools are needed?
We mentioned that to replace the timing chain on a Peugeot 308, you need a set of special tools. But you may also need the following tools:
- Collars.
- Standard set of heads.
- Torex bits.
- Torque wrench.
- Sealing sealant.
- Silicone sealant for gaskets.
- Screwdriver set.
Tightening torque and reassembly
As you can see, on an ep6 motor, replacing the chain is a complex procedure, but it requires special tools and skills. It is also important to know with what torque (force) to tighten previously unscrewed bolts. This information is in the manual, it is recommended that you read it before starting assembly.
For example, the tightening of the chain tensioner with a torque wrench is 8.5 da.N.m, the stabilizer bolts are 2.5, the crankshaft hub mounting bolt is 5, the attachment pulley bolts are 2.8, the phase shifter mounting bolt is 2, the camshaft sprocket is 2, etc.
We also recommend reading the article about which drive is better, a timing chain or a belt. In this article you will learn about the advantages and disadvantages of various types of timing gear drives.
It is also recommended to lubricate the crankshaft sprocket mounting bolt with so-called liquid fixative. It is also important not to make mistakes when installing phase shifters on the intake and exhaust shafts (the intake is marked IN35, the exhaust is EX30).
Replacement algorithm
Now we’ll tell you in detail how to replace the timing chain on a Peugeot 308 EP6. When you have prepared everything you need, you can begin the repair, for this:
- Remove the air purification filter and carefully move the pipes to the side.
- Remove the plastic cover and disconnect the camshaft sensors. Remove the valve cover.
- Rotate the crankshaft until the marks on the camshafts match. You cannot rotate the crankshaft in the opposite direction; it is better to make two turns clockwise.
- Install the lower marker and secure the flywheel.
- Remove the oil dipstick and loosen the engine mount. After this, you can raise the engine a little. Without this, it will not be possible to replace the chain on the Peugeot 308 EP6.
- Install the upper device for fixing the camshaft marks.
- Remove the alternator belt.
- Remove the three bolts that secure the fluid pump drive roller.
- Remove the tensioner and upper damper.
- Remove the sprocket bolt on the exhaust and intake camshafts. Be careful not to let the sprocket fall into the crankcase.
- Install the front attachment using the mounting bolt and put the chain on it.
- Remove the bolts that secure the crankshaft hub cover.
- Remove the hub and take out the chain with the left and right guides.
- Remove the oil seal and timing gear.
That's it, dismantling is complete. Before installing a new kit, you need to wash the crankshaft hub and sprocket with any degreaser. As you can see, replacing a Peugeot 308 chain with your own hands is not very difficult. But you will have to fork out for a set of accessories.
Indirect signals about the need for replacement
The timing chain itself is a much more reliable consumable than a belt, and can withstand a mileage of more than 150 thousand kilometers if you treat the car with care and follow all technical regulations prescribed by the manufacturer in the instructions. This applies not only to naturally aspirated, but also to turbocharged versions of this car.
The following symptoms most often indicate the need to replace the chain:
- Unusual engine noise, reminiscent of a diesel engine, when idling or at low speeds.
- Troubling, engine operation with failures and sudden shutdowns.
- Problems starting the engine.
- Oil is consumed in volumes exceeding standard values, and fuel consumption increases.
The message “Anti-pollution system faulty” or other errors appear on the on-board computer screen, indicating problems in the operation of the gas distribution mechanism.
- The "Check Engine" signal appears.
When the timing chain wears out on a Peugeot 308, other problems are possible. You should pay special attention to them if the car has already accumulated the appropriate mileage and was operated in urban mode.
