Replacing the timing chain on a Nissan Almera Classic: when is it needed and how to do it right

Timing chain (timing chain) in Nissan Almera Classic (body N16) is a critical element, the condition of which determines the performance of the engine. Unlike a belt drive, a chain is considered more reliable, but over time it also stretches, wears out and requires replacement. To miss the moment of replacement means to risk colliding with chain jumpwhat's on the engines QG15DE And QG16DE often leads to bent valves and major repairs.

In this article we will look at when exactly to change the chain on Almera Classic, what signs indicate its wear, which kit to buy and how to replace it yourself - with photos, diagrams and nuances that are not written about in standard manuals. We will also consider typical mistakes that owners make when replacing them, and give recommendations on the selection of spare parts.

Signs of timing chain wear on a Nissan Almera Classic

The first signal of problems with the circuit is extraneous sounds from under the hood. On Almera Classic a worn chain often shows itself metallic clang on a cold engine, which disappears after warming up. This is due to the fact that at low temperatures the oil thickens and the tensioner cannot compensate for the slack of the chain. If the noise does not disappear even after warming up, the chain is stretched critically.

Other symptoms:

• 🔧 Floating speed at idle speed the chain skips 1-2 teeth, throwing off the valve timing.
• ⚠️ Difficulty starting the engine, especially after a long stay (the chain could “lie down” to one side).
• 📉 Power drop and jerking during acceleration is a sign of a phase shift.
• 🚨 Check Engine with errors P0011 (“Camshaft phasing”) or P0340 (“Camshaft position sensor error”).

On Nissan Almera Classic with engines QG15DE/QG16DE The timing chain is designed for 150–200 thousand km, but the actual period depends on operating conditions. If the car is often driven short distances (the engine does not warm up completely), uses low-quality oil or operates in dusty conditions, the chain may fail already 100–120 thousand km.

⚠️ Attention: If the panel lights up Check Engine with an error P0016 (“Mismatch of crankshaft and camshaft phases”), stop operating immediately! This is a direct sign of chain jumping, which is QG motors leads to pistons hitting the valves.

Timing for chain replacement: when is it time to act

Manufacturer Nissan does not indicate strict regulations for replacing the timing chain, but the experience of craftsmen and owners Almera Classic shows: optimal interval - every 150–180 thousand km. However, there are factors that shorten this period:

Risk factor	Impact on chain life	Recommendation
Operation in traffic jams	Accelerated wear due to frequent starts/stops	Check the chain every 80–100 thousand km
Using low-quality oil	Poor lubrication increases chain friction	Change oil every 7–8 thousand km, use 5W-30 or 5W-40 from trusted brands
Aggressive driving style	Sudden accelerations stress the chain	Avoid "sport" driving mode
Extreme temperatures	Overheating or frost degrades the properties of the oil.	Monitor engine temperature, use winter oil

If you buy Almera Classic with mileage, be sure to check the chain, even if the seller claims that it is “still new.” To do this:

1. Remove the valve cover and visually assess the chain tension (sagging more than 10 mm is a critical sign).
2. Turn the crankshaft 2 turns and listen for sounds - squeaks or scrapes indicate wear.
3. Use a diagnostic scanner to check for phase errors.

What spare parts to choose: original vs analogues

To replace the timing chain with Nissan Almera Classic will be required kitwhich includes:

• 🔗 The timing chain itself (original article number - 13028-4M50A for QG15DE, 13028-4M51A for QG16DE).
• 🔧 Chain tensioner (13070-4M500).
• 🛠 Calcifiers (upper and lower, articles 13085-4M500 And 13086-4M500).
• 🔄 Camshaft and crankshaft sprockets (recommended to be replaced if severely worn).

The cost of the original set is from Nissan — 8–12 thousand rubles. However, many owners choose analogues from trusted brands:

Brand	Kit article number	Average price, ₽	Features
Febi	22616	5 500–7 000	Good price/quality ratio, suitable for moderate use
Gates	K015631XS	7 000–9 000	Long service life, recommended for turbocharged engines (although Almera Classic there are none)
INA	530 0539 10	6 000–8 000	German quality, often used in services
Dayco	KTB631	5 000–6 500	Budget option, but the resource is lower than the original

Critical: When purchasing a kit, check that all items are included! Often, cheap sets do not have guides or tensioners, which leads to premature wear of the new chain.

Also note valve stem seals And oil seals — it is recommended to change them at the same time as the chain, since they still have to be removed to access the timing belt. Articles:

• 🛢 Caps (13270-4M500 for QG15DE, 13270-4M510 for QG16DE).
• 🔴 Crankshaft oil seal (13510-4M500).

Tools and preparation for replacement

Replacing the timing chain with Nissan Almera Classic - a labor-intensive process that requires special tools and accuracy. If you are not confident in your abilities, it is better to contact the service. To replace it yourself, prepare:

Torque wrench (critical for proper tightening!)

Set of sockets and socket wrenches (10, 12, 14, 17 mm)

Screwdrivers (flat and Phillips)

Sprocket puller (or improvised means - for example, mounting)

Valve cover sealant (Loctite 574 or similar)

New valve cover gasket (11044-4M500)

Clean rags and solvent for cleaning surfaces

Camshaft retainers (can be made from metal plates)

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You will also need:

• 🔧 Stand or jack for lifting the engine (when removing the support).
• 📸 Camera or phone — take photographs of each stage of disassembly so as not to confuse the parts during assembly.
• 🔋 Battery fully charged - When replacing, you will have to rotate the crankshaft.

Before starting work:

1. Place the machine on a level surface and secure the wheels.
2. Disconnect the negative terminal of the battery.
3. Drain the antifreeze and oil (if you replace the chain, they will still have to be updated).
4. Remove the alternator belt and other obstructing items (such as the air filter).

⚠️ Attention: Don't start disassembling if you don't have camshaft clamps! Without them, it is impossible to accurately set the timing marks, which will lead to phase failure and engine damage. Fasteners can be purchased (NV-10142000) or make it yourself from metal plates 3–4 mm thick.

Step-by-step instructions for replacing the timing chain

The process of replacing the chain with Nissan Almera Classic takes 6–8 hours (for beginners - up to 10–12 hours). The main thing is to follow the procedure and timing marks. Below is a simplified diagram, but for accuracy we recommend using the repair manual N16.

Step 1. Removing valve covers and protections.

1. Disconnect all pipes and connectors that interfere with the removal of the cover.
2. Unscrew the valve cover bolts (there are 15 of them) and remove it. Be careful - there may be oil residue under the lid.
3. Remove the upper chain guide (secured with 2 bolts).

Step 2. Fixing the camshafts and crankshaft.

1. Rotate the crankshaft clockwise until the mark on the camshaft sprocket aligns with the mark on the housing.
2. Install the camshaft retainers (they fit into the grooves on the back of the shafts).
3. Check that the mark on the crankshaft pulley matches the mark on the oil pump (visible through the inspection window).

Step 3. Dismantling the old chain.

1. Loosen the chain tensioner (unscrew the fixing bolt).
2. Remove the crankshaft sprocket (a puller or tool will be required).
3. Carefully remove the chain, remembering its position (it is better to take a photo).
4. Check the condition of the sprockets - if they are worn out, they also need to be replaced.

Step 4: Install a new chain.

1. Place the new chain on the sprockets, following the marks. The colored chain links must match the marks on the sprockets!
2. Install the tensioner and dampers.
3. Rotate the crankshaft 2 turns and check that the marks match.
4. Tighten the tensioner firmly 20 Nm.

Step 5. Assembly and testing.

1. Install the valve cover onto the new sealant and tighten the bolts in a criss-cross pattern. 10 Nm.
2. Fill with new oil and antifreeze.
3. Start the engine and listen - there should be no extraneous noise.
4. Check with a scanner for phase errors.

What should I do if the Check Engine light comes on after replacing the circuit?

If an error appears after replacing the circuit P0011 or P0016Most likely, the timing marks are set incorrectly. Required:

1. Remove the valve cover again.

2. Check the alignment of the marks on the camshafts and crankshaft.

3. Make sure that the chain has not jumped on the sprockets (sometimes this happens during the first spin).

4. If necessary, reinstall the chain and repeat the procedure for fixing the shafts.

Video instructions for replacing the chain with Nissan Almera Classic:

For clarity, we recommend watching the video from the channel Nissan Service (link: youtu.be/example). Pay attention to the moment of installing the clamps - this is the most critical stage!

Typical mistakes when replacing a timing chain

Even experienced craftsmen sometimes make mistakes that lead to re-repair or serious damage. Here are the most common:

1. Incorrect label setting. If the marks on the camshafts or crankshaft do not match, the engine will run rough or not start at all. Always use clamps!
2. Retightening the valve cover bolts. This leads to deformation of the cover and oil leakage. Tighten the bolts with a torque wrench 10 Nm.
3. Ignoring the replacement of sedatives. Old guides with wear accelerate the wear of the new chain. Be sure to change them!
4. Incorrect chain selection. Chains from QG15DE And QG16DE They are similar in appearance, but have different lengths. Installing a non-original chain will cause it to slip.
5. They forget about the seals. If you do not replace the crankshaft oil seal, after 10–20 thousand km it will begin to leak, and you will have to disassemble the engine again.

Another common mistake is not warming up the engine before checking. After replacing the chain you must:

1. Start the engine and let it idle for 5-10 minutes.
2. Check for the absence of extraneous noise.
3. Check oil pressure (should be stable).
4. Take a test drive with smooth acceleration to 40–50 km/h and listen to the engine running under load.

⚠️ Attention: If after replacing the chain the engine Almera Classic began to “triple” or popping sounds appeared in the exhaust system, this is a sign incorrectly installed phases. Immediately turn off the engine and recheck the marks!

Cost of replacing a timing chain at a service center

If you do not risk changing the chain yourself, you can contact the service. The cost of work depends on the region and level of the service station:

Service type	Average price of work, ₽	Lead time	What's included in the price
Official dealer Nissan	12 000–18 000	1 day	Replacement of chain, sprockets, tensioner, dampers + diagnostics
Independent service (specializing in Nissan)	8 000–12 000	6–8 hours	Replacing the chain set + oil seals (by agreement)
Garage craftsmen	5 000–8 000	8–10 hours	Chain replacement only (no guarantees on sprockets and guides)

Cost of spare parts (chain set + consumables) — 6,000–12,000 rubles. In total, a complete replacement in the service will cost 14,000–30,000 rubles, depending on the level of the service station and the selected spare parts.

You can save money if:

• 🛒 Buy a chain set yourself (services often charge 20–30% on spare parts).
• 🔧 Agree with the master for a replacement “with your own spare parts.”
• 📋 Check in advance whether the price includes replacing oil seals and valve stem seals (often this is an option for +2,000–3,000 ₽).

If your budget is limited, you can consider the option partial replacement - for example, change only the chain and tensioner, leaving the old sprockets. However, this is risky: worn sprockets will accelerate the stretching of the new chain.

FAQ: Frequently asked questions about replacing the timing chain on a Nissan Almera Classic

Is it possible to drive if the chain starts to rattle?

Short-term driving (up to 500–1000 km) is possible if it rattles only when cold and there are no phase errors. But it's not worth the risk - if the chain breaks or jumps on QG motors almost always bends the valves. It is better to immediately turn off the car and start repairing.

How to check the timing chain without disassembling the engine?

Methods for checking without removing the cover:

1. Listen to the engine at idle - a metallic clanging sound when warming up indicates wear.
2. Turn the crankshaft manually (with the spark plug removed) - if dips or resistance are felt, the chain is stretched.
3. Connect a diagnostic scanner and check phase errors (P0011, P0016).

Accurate diagnosis can only be made after removing the valve covers.

What oil should I fill in after replacing the chain?

For Nissan Almera Classic with motors QG15DE/QG16DE synthetic oil recommended 5W-30 or 5W-40 with permission API SL/SM or SN. Optimal brands:

• Nissan Strong Save X 5W-30 (original).
• Mobil 1 ESP 5W-30 (for long replacement intervals).
• Liqui Moly Special Tec AA 5W-30 (good wear protection).

Oil volume - 3.2 l (with filter replacement). For the first 500 km after replacing the chain, avoid high speeds so that the new parts can break in.

What happens if you don't change the timing chain?

The consequences depend on the degree of wear:

• Light wear: increased noise, floating speed, increased fuel consumption.
• Average wear: chain jump by 1–2 teeth → phase failure, errors Check Engine, loss of power.
• Critical wear: chain break or jump by 3+ teeth → impact of valves on pistons, bending of valves, destruction of the cylinder head. Repairs will cost 80 000–150 000 ₽.

On Almera Classic with motors QG the risk of valve bending due to a broken circuit is 90%.

Is it possible to replace the timing chain without removing the engine?

Yes, on Nissan Almera Classic The chain can be changed without removing the engine. However, you will need:

1. Remove the right engine mount (to access the crankshaft sprocket).
2. Jack up the engine from the side of the box (so as not to distort the cushions).
3. Remove the pan (sometimes required to access the oil pump).

Services often offer a “simplified” replacement without removing the pallet, but this is fraught with inaccurate installation of marks.