Replacing the timing chain on a <em>Nissan Almera N16</em>: when to change and how to do it right

Nissan Almera N16 with engines QG15DE (1.5 l) and QG18DE (1.8 l) is equipped with a timing chain drive, which is considered more reliable than a belt. However, even the chain requires replacement - its stretching or wear can lead to serious damage, even to the point where the valves meet the pistons. In this article we will look at when and how to change the timing chain to Almere H16, what tools will be needed, and how much it will cost in 2026.

The manufacturer states that the chain on these motors serves 150–200 thousand km, but in practice the period depends on operating conditions. Aggressive driving, frequent cold starts or low-quality oil reduce the service life by 1.5–2 times. If you hear a metallic clanging sound when starting up or notice floating speed, this is a reason to check the condition of the drive. Next, we’ll tell you how to diagnose the problem and perform the replacement yourself.

Signs of timing chain wear on Nissan Almera N16

The timing chain wears out gradually, and the first symptoms are often ignored, attributed to other faults. However, delay is fraught with a break or jump of the chain, which for QG18DE almost always ends bent valves. Look out for the following signs:

• 🔊 Noise when starting - a metallic knock or clanging sound in the timing cover area, which disappears after warming up. This indicates a stretched chain that “hits” the damper or tensioner.
• ⚠️ Floating speed at idle speed - the chain can slip by 1-2 teeth, throwing off the valve timing.
• 🔧 Error P0340 (or similar) - indicates a discrepancy between the signals from the crankshaft and camshaft sensors, which is often associated with chain stretching.
• 📉 Power Loss — the engine “does not pull”, especially at high speeds, due to phase imbalance.

If you notice any of these symptoms, check the circuit visually. To do this, remove the timing cover and evaluate:

• 📏 Sagging — the chain should be tensioned, without noticeable sagging between the sprockets.
• 🔗 Condition of teeth on camshaft and crankshaft sprockets - worn teeth have a “pointed” shape.
• 🛑 Damper play - if it is loose or has cracks, it also needs to be changed.

⚠️ Attention: On Almera N16 with motor QG18DE When the valve circuit breaks, it bends in 90% of cases. On QG15DE The risk is lower, but still there. Don't ignore noises!

Timing chain life: when to change to Nissan Almera N16

Official regulations Nissan does not prescribe strict timing for replacing the chain, but the experience of owners and mechanics shows the following figures:

Engine	Chain resource (km)	Recommendations for replacement
QG15DE (1.5 l)	180–220 thousand km	Change at the first signs of stretching or together with the pump (every 100 thousand km).
QG18DE (1.8 l)	150–180 thousand km	Critical to the quality of oil! Replacing the chain and dampers is mandatory if there is noise.
Both motors	—	When operating on gas (gas) reduce the interval by 30–40%.

Important to consider oil quality — the chain wears out faster if:

• 🛢️ Mineral or semi-synthetic oil is used instead 5W-30 or 5W-40.
• 🔥 Oil hasn't been changed for longer 15 thousand km (or once a year).
• 🚗 The car is often operated in “taxi” mode (short trips, warming up at idle).

On Almera N16 With a mileage of over 150 thousand km, the timing chain is almost always stretched, even if there are no obvious symptoms. Diagnose its condition at every oil change after this milestone.

Preparing for replacement: tools and spare parts

Replacing the timing chain with Nissan Almera N16 requires special tools and a set of spare parts. If you decide to do the work yourself, prepare in advance:

Required Tools

• 🔧 A set of sockets and keys (required) 10 mm, 12 mm, 14 mm, 17 mm).
• 🔩 Torque wrench (for tightening the crankshaft pulley bolt with a torque 100–120 Nm).
• 🛠️ Crankshaft pulley puller (or a homemade device from the starter).
• 🔗 Special camshaft retainer (can be made from a metal rod).
• 🔨 Sealant for timing case cover (for example, Loctite 574 or ABRO 11-AB).
• 🧲 Magnetic stick (for removing bolts from hard-to-reach places).

Replacement parts

Buy only original parts or high-quality analogues. For Nissan Almera N16 you will need:

Detail	Original article	Analogs (brand)	Note
Timing chain	13028-4M51A	Febi, SKF, Gates	Take only a set with calmers!
Chain damper	13085-4M500	Ajusa, Nipparts	Change both (top and bottom).
Chain tensioner	13070-4M500	Febi, Blue Print	A new one is required, even if the old one “works.”
Timing cover gasket	13031-4M500	Elring, Victor Reinz	Use with sealant.

Cost of the original set (chain + stabilizers + tensioner) - 8–12 thousand rubles (for 2026). Analogues will cost 5–7 thousand rubles, but saving is not recommended: a low-quality chain can stretch after 30–50 thousand km.

⚠️ Attention: When replacing the timing chain with Almera N16 necessarily change the pump (water pump). Its resource is comparable to a chain, and access to it is only open when the timing cover is removed. Pump article number - 21010-4M505 (original) or Graf, Hepu (analogues).

Remove the negative terminal from the battery|Check that all tools are available|Buy a chain set + pump + gaskets|Clear the work area from dirt|Prepare a container for draining antifreeze-->

Step-by-step instructions for replacing the timing chain

The process of replacing the chain with Nissan Almera N16 labor-intensive, but doable in a garage. The main thing is to follow the procedure and timing marks. Below is the instruction for the engine QG18DE (for QG15DE steps are similar, but labels may differ).

Step 1: Timing cover removal and preparation

1. Drain the antifreeze and remove the radiator (or move it to the side).
2. Disconnect the pipes and sensors that interfere with the removal of the timing cover (crankshaft position sensor, generator, etc.).
3. Remove the alternator belt and crankshaft pulley. To do this, block the crankshaft (insert a screwdriver into the flywheel teeth through the window in the clutch housing) and unscrew the pulley bolt with a wrench 17 mm.
4. Remove the timing cover, carefully prying it around the perimeter. Be careful - it often “sticks” to the sealant.

Step 2: Fixing the camshafts and crankshaft

Before removing the chain necessarily set tags:

1. Turn the crankshaft clockwise until the mark on the crankshaft sprocket aligns with the casting on the block.
2. Make sure that the marks on the camshafts (intake and exhaust) are facing up and align with the marks on the cover.
3. Secure the camshafts with a homemade or factory-made lock (for example, Nissan SST: KV10118200).

An example of the location of the marks on QG18DE. On QG15DE The mark on the crankshaft may be in a different place - check with the manual!

Step 3: Removing the old chain and installing the new one

1. Loosen the chain tensioner (unscrew the fixing bolt) and remove the chain from the sprockets.
2. Check the condition of the sprockets - if the teeth are very worn, replace them (part number: 13028-4M51B for camshafts, 13028-4M50A for the crankshaft).
3. Install the new chain starting at the crankshaft. Make sure that the marks on the chain match the marks on the sprockets!
4. Install a new tensioner and dampers. Tighten the bolts to torque 20–25 Nm.

Step 4: Assembly and Testing

1. Apply sealant to the timing cover and install it in place. Tighten the bolts crosswise to torque 10–12 Nm.
2. Install the crankshaft pulley and tighten its bolt with a torque wrench (100–120 Nm).
3. Turn the crankshaft 2 turns and make sure that the marks match and the chain does not slack.
4. Fill with antifreeze, start the engine and check for leaks and extraneous noise.

💡

If the engine runs unstably after replacing the timing chain, check that the timing marks are set correctly. A common mistake is the chain jumping by 1 tooth, which is not always visually noticeable, but leads to error P0340.

Common mistakes when replacing a timing chain

Even experienced craftsmen sometimes make mistakes that lead to repeated repairs or serious damage. That's what it's impossible do when replacing a chain with Almera N16:

• 🔧 Ignore pump replacement — its resource is comparable to a chain, and access to it will be closed after assembly.
• 📏 Do not check labels after installation - even a small jump in the circuit leads to phase failure and ECU errors.
• 🛑 Use old tensioner - it may not provide the required tension, and the chain will quickly stretch.
• 🔩 Tighten the crankshaft pulley bolt without a torque wrench - over-tightening leads to deformation of the flange, under-tightening leads to rotation of the pulley.
• 🧴 Save on sealant - cheap compounds cannot withstand temperature loads, and the timing cover will begin to leak.

Another typical problem is incorrect installation of dampers. They should fit snugly to the chain, without any play. If the guide is loose, the chain will hit it, accelerating wear.

⚠️ Attention: On Nissan Almera N16 with HBO the chain wears out 30–40% faster due to elevated temperatures. If your car runs on gas, reduce the replacement interval to 100–120 thousand km.

What should I do if there is a knocking noise after replacing the chain?

A knocking sound after replacing the timing chain may indicate:

1. **Incorrect installation of dampers** - check their fixation.

2. **Over-tightened chain** - loosen the tensioner and check the marks.

3. **War on sprockets** - if the teeth are worn out, the chain will “jump”.

4. **Foreign objects** (for example, fragments of an old chain) getting under the timing cover.

If the knocking noise continues, remove the cover and repeat assembly, paying attention to the marks and tension.

Cost of replacing a timing chain at a service center vs doing it yourself

Timing chain replacement price Nissan Almera N16 depends on the region and level of service. In 2026, the current prices are as follows:

Types of work/spare parts	Cost (RUB)	Note
Timing chain kit (original)	8 000 – 12 000	Includes chain, guides, tensioner.
Timing chain kit (analog)	5 000 – 7 000	Brands: Febi, SKF, Gates.
Pump (water pump)	2 500 – 4 000	Original: 21010-4M505.
Work in the service	6 000 – 10 000	Includes replacement of chain, pump, antifreeze.
Self-replacement	3 000 – 5 000	Only spare parts + antifreeze.

Total A complete replacement of the timing chain in the service will cost 15–25 thousand rubles, and independently - in 8–12 thousand rubles (including antifreeze and sealant). However, please note that without experience, the job may take 8–12 hours, whereas a master can do it in 3–4 hours.

If you decide to make the replacement yourself, evaluate your strengths in advance. You will need:

• 🔧 Ability to work with a torque wrench.
• 📐 Accuracy when combining marks.
• 🧠 Understanding the principles of operation of the timing belt (what are the phases, why are the marks important).

💡

Savings on replacing a timing chain are more expensive: a broken chain on QG18DE almost always leads to a major overhaul of the engine (from 50 thousand rubles).

Frequently asked questions about replacing the timing chain with Nissan Almera N16

Is it possible to drive with a stretched chain if there is no noise?

No. A stretched chain can jump 1-2 teeth at any time, which will lead to a failure of the valve timing. On QG18DE this almost always ends up bending the valves. Even if there is no noise, but the mileage is more than 150 thousand km, the chain needs to be diagnosed.

How to check the timing chain without removing the cover?

Indirectly, the condition of the circuit can be assessed by:

• Noises when starting (clanging noise that disappears after warming up).
• Floating speed at idle.
• Errors P0340 or P0345 (mismatch of signals from the crankshaft and camshaft sensors).

However, accurate diagnosis can only be carried out after removing the timing cover.

What oil should I fill in after replacing the chain?

For Nissan Almera N16 synthetic oil recommended 5W-30 or 5W-40 with permission API SL/SM or ILSAC GF-4. Optimal brands:

• Nissan Strong Save X E 5W-30 (original).
• Mobil 1 ESP 5W-30.
• Liqui Moly Special Tec AA 5W-30.

The oil must be changed immediately after replacing the chain, as the old oil may contain metal particles from a worn chain.

Do I need to change seals when replacing a chain?

Be sure to check the condition of the crankshaft and camshaft seals. If they leak or have cracks, replace them (part numbers:

• Crankshaft oil seal: 13510-4M500.
• Camshaft oil seal: 13510-4M510 (inlet) and 13510-4M511 (graduation).

The cost of oil seals is about 500–800 rubles apiece, and replacing them on a removed timing cover does not require additional effort.

Is it possible to install a timing chain from another engine?

No. Chains from QG15DE And QG18DE are not interchangeable - they differ in the number of teeth and length. Also chains from Nissan Primera P12 or Almera Classic, even if the engines seem similar. Use only original articles or equivalents recommended for your model.