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 - a critical element, the condition of which determines the performance of the engine. Unlike a timing belt, a chain is considered more reliable, but over time it also stretches, wears out, or even breaks. Consequences of an open circuit for engines QG15DE (1.5 l) or QG18DE (1.8 l) can be catastrophic: bent valves, damaged pistons and major overhauls.

In this article, we’ll look at how to determine chain wear, when to change it (timetable and actual timing), what tools will be needed for replacement, and how to do the work yourself, taking into account the nuances Almera Classic (including models N16, B10 and restyled versions). We will also provide current prices for spare parts and compare original chains with analogues from Febi, SKF And Gates.

Signs of timing chain wear on a Nissan Almera Classic

The first symptoms of circuit problems are often ignored because they are similar to problems with other systems. However there is characteristic features, which directly indicate stretching or damage to the chain:

• 🔊 Metallic knock from under the hood on a cold engine (especially noticeable during startup). The sound may disappear after warming up, but this does not mean that the problem has gone away.
• ⚠️ Floating speed at idle, the chain slips on the gear teeth, disrupting the timing of the valve timing.
• 🔧 Sensor errors (For example, P0011 or P0016) - indicate a shift in the intake/exhaust phases.
• 🚗 Power Loss and the “dullness” of the engine during acceleration is a consequence of improper operation of the valves.

If you notice any of these symptoms, do not delay diagnostics: a stretched chain can jump 1-2 teeth, which will lead to a collision of valves with pistons. On engines QG15DE/QG18DE this is guaranteed to end in a major overhaul.

⚠️ Attention: On Almera Classic With a mileage of more than 150 thousand km, the knock of the chain is often disguised as the noise of hydraulic compensators. To distinguish them, use a stethoscope or a long screwdriver (apply to your ear and to the timing cover). The chain knocks rhythmically, at the same speed as the crankshaft.

Replacement schedule: when to change the timing chain

Official regulations Nissan does not provide for the replacement of the timing chain - it is considered “eternal”. However, in practice, the life of the chain depends on the operating conditions:

Operating conditions	Recommended mileage for replacement	Notes
Quiet ride, quality oil	180–220 thousand km	When using oils 5W-30 or 5W-40 with permission API SN.
Aggressive driving, frequent overheating	120–150 thousand km	High loads accelerate chain stretching.
Operation in severe frost conditions	150–180 thousand km	Cold starts increase metal wear.
Using low quality oil	100–130 thousand km	Poor lubrication leads to accelerated wear of the links.

It is important to consider that Almera Classic The timing chain works in tandem with tensioner and dampers. If they are not replaced at the same time as the chain, the new parts will last 2–3 times less. For example, a worn tensioner will not provide the required pressure, and the chain will “dangle”, accelerating its wear.

What tools and spare parts will be needed

To replace the timing chain with Nissan Almera Classic will be required specialized tool and a set of spare parts. Do not try to make do with “improvised” means - this is fraught with errors during assembly.

• 🔧 Tools:
  • Crankshaft wrench (special “hook” for QG engines).
  • Camshaft retainer (e.g. Nissan SST KV10112900).
  • Torque wrench (for tightening bolts with a torque of 20–25 Nm).
  • Crankshaft pulley puller (can be rented).
  • Set of sockets and extensions (incl. E14 to drain the oil).
• 🛠️ Spare parts (replacement kit):
  • Timing chain (original Nissan 13028-4M51A or equivalent Febi 24386).
  • Chain tensioner (Nissan 13070-4M500).
  • Calcifiers (upper and lower, Nissan 13085-4M500).
  • Timing cover gasket (Nissan 13035-4M500).
  • Oil and filter (replacement is required after work!).

The cost of the original set (chain + tensioner + dampers) is approx. 8–12 thousand rubles. Analogues (Febi, SKF) will cost 5–7 thousand rubles. It is not recommended to save on spare parts: cheap chains can stretch after 30–50 thousand km.

Step-by-step instructions for replacing the timing chain

The process of replacing the chain with Nissan Almera Classic takes 4–6 hours (depending on experience). The main thing is to follow the order of disassembly and timing marks. Below is the algorithm for the engine QG15DE (1.5 l), but it is also relevant for QG18DE adjusted for chain length.

Drain the oil and antifreeze|Remove the alternator belt and crankshaft pulley|Disconnect the pipes and remove the valve cover|Fix the crankshaft and camshafts according to the marks|Prepare a new set of spare parts-->

Step 1: Removing the old chain

1. Remove right engine mount (after jacking up the engine).

2. Install the piston of the 1st cylinder in TDC (top dead center). To do this:

• Unscrew the spark plug of the 1st cylinder.
• Rotate the crankshaft clockwise until the mark on the pulley matches the mark on the cover.
• Check the marks on the camshafts - they should point up (the valves of the 1st cylinder are closed).

3. Secure the camshafts with a special device (or a homemade clamp made from a metal plate).

4. Loosen the chain tensioner and remove the dampers. The chain can be removed.

Step 2: Installing a New Chain

1. Place a new chain on the crankshaft gear, then on the camshaft gears. Make sure that the marks on the chain matched the marks on the gears (usually they are marked with colored links).

2. Install the tensioner and dampers. Tighten the bolts to torque 20 Nm.

3. Rotate the crankshaft 2 turns and make sure that the marks match. If not, reinstall the chain.

Step 3: Assembly and Testing

1. Install the timing cover with a new gasket. Tighten the bolts in a cross pattern to avoid distortion.

2. Fill with new oil and antifreeze. Start the engine and check for any abnormal noise.

⚠️ Attention: After replacing the chain, avoid high speeds (more than 3 thousand rpm) for the first 500 km - this is necessary to break in the new parts. Also check the oil level after 100 km: leaks are possible through the new gasket.

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

If the knocking noise persists, the following reasons are possible:

1. The timing marks are installed incorrectly (check that the marks on the crankshaft and camshafts match).

2. Camshaft or crankshaft gears are worn (replacement required).

3. The new tensioner is faulty (defective or counterfeit).

4. The chain is not original and has the wrong length (compare with the old chain by the number of links).

Comparison of the original circuit and analogues

Choosing between the original chain Nissan and analogues - a matter of budget and trust in the brand. We tested several options for Almera Classic with mileage 200+ thousand km:

Manufacturer	Article	Price (RUB)	Resource (thousand km)	Features
Nissan (original)	13028-4M51A	6 500–8 000	180–220	Guaranteed quality, but high price.
Febi (Germany)	24386	3 500–4 500	150–180	Good price/quality ratio, but there are fakes.
SKF (Sweden)	VKMC 00338	4 000–5 000	160–200	High resource, but difficult to find in stores.
Gates (USA)	TCKWP328	3 000–4 000	120–150	Budget option, but more often stretched.

Our verdict: if your budget allows, take it original or SKF. Suitable for saving Febi, but buy only from official dealers - fakes are common (they are distinguished by poor-quality packaging and the absence of a hologram).

Common mistakes when replacing a timing chain

Even experienced craftsmen sometimes make mistakes that lead to breakdowns. Here top 5 misses when replacing the chain with Almera Classic:

• 🔄 Label mismatch - if the chain is installed with a shift of 1 tooth, the engine will run unstable and the panel will light up Check Engine.
• 🛑 Ignoring the tensioner - the old tensioner does not create the required pressure, and the chain begins to “slap”.
• 🔧 Retightening the timing cover bolts - leads to gasket deformation and oil leaks.
• 🚗 Forgetting to change the oil — chips from the old chain remain in the system and accelerate the wear of the new one.
• ⚠️ Use sealant instead of gasket - This is a temporary solution that leads to leaks.

The most dangerous mistake is failure to check labels after installation. If the chain has jumped, the valves may hit the pistons during the first start. To avoid this, always turn the crankshaft 2 turns by hand before starting the engine.

FAQ: Answers to frequently asked questions

Is it possible to drive with a knocking chain?

No! Chain knocking is a sign of critical wear. If the chain jumps or breaks, the engine QG15DE/QG18DE will suffer serious damage (bent valves). The maximum that can be done is to get to the service station in a tow truck or tow truck.

How much does it cost to replace a timing chain at a service center?

At official dealers Nissan the work will cost 12–18 thousand rubles (with spare parts - up to 25 thousand). In private services the price is lower: 6–10 thousand rubles for the work + cost of the kit.

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

Yes, on Almera Classic it's possible. It is enough to remove the right engine mount and timing cover. However, for convenience, some craftsmen still lift the engine with a jack.

What oil should I fill in after replacing the chain?

Recommended oil - 5W-30 or 5W-40 with permission API SN. For example, Nissan Strong Save X 5W-40 or Liqui Moly Special Tec AA 5W-30. Important: it is better to change the first oil after replacing the chain after 5 thousand km - it will contain a lot of metal shavings.

What happens if the sedatives are not replaced?

The dampers dampen circuit vibrations. If they are not replaced, the chain will hit the plastic parts, accelerating their wear. In the worst case, the damper will break and debris will fall into the oil, clogging the channels.