Replacing the timing chain on a <em>Nissan Almera Classic</em> with your own hands: a complete guide with nuances

Timing chain (timing belt) in Nissan Almera Classic (body N16) is a critical element, the condition of which determines the stability of the engine and its service life. Unlike a belt drive, a chain is considered more reliable, but it also requires periodic replacement due to stretching, wear of links or damage to the dampers. Average replacement interval for Almera Classic with motors QG15DE (1.5 l) and QG18DE (1.8 l) — 150–200 thousand km, but with aggressive driving or low quality oil, this period is reduced to 100–120 thousand km.

In car services, for replacing a timing chain they ask from 15 to 25 thousand rubles (depending on the region), but if you have the tools and patience, you can perform the procedure yourself. The main thing is to take your time and strictly follow the algorithm, as errors when installing the chain can lead to jump of teeth, collision of pistons with valves and engine overhaul. In this article we will analyze the entire process from preparation to assembly, paying attention to typical pitfalls and tricks that will make the work easier.

When to change the timing chain Nissan Almera Classic: signs and timing

The manufacturer does not specify strict regulations for replacing the chain, but operating experience shows that its condition cannot be ignored. Main symptoms of wear:

• 🔊 Extraneous noise from under the hood at idle - a metallic clang or “rustle”, which intensifies as the engine warms up.
• ⚡ Unstable work motor: floating speed, tripping, difficulty starting.
• ⏱️ Chain stretchnoticeable upon visual inspection (sagging more than 10 mm when tensioned).
• 🚨 Sensor errors (For example, P0011 or P0016) associated with valve timing.

If the chain has stretched but not yet broken, the engine may run rough due to phase displacement. In critical cases (breakage or jump), the consequences are fatal: the valve bends, the pistons are damaged, and the guides break. To avoid this, check the circuit every 80–100 thousand km, especially if:

• 🛢️ You use cheap or fake oil (the chain wears out faster due to insufficient lubrication).
• 🏁 Do you often go to high speed or with sudden starts.
• 🌡️ Engine regularly overheats (temperatures above 100°C accelerate metal degradation).

⚠️ Attention: On Almera Classic with motor QG18DE (1.8 L) timing chain has double row design, which makes it difficult to replace. If you are a beginner, practice removing the timing cover and checking the tensioner to purchasing a kit.

Sign of wear	Probable Cause	Recommendations
Noise on cold start	Worn guides or stretched chain	Check the tensioner and chain condition
Error P0011 (phase mismatch)	Chain jumps 1–2 teeth	Immediate diagnosis and replacement
Vibrations at idle	Uneven chain tension	Check the hydraulic tensioner
Oil in pan with metal shavings	Critical wear of the chain or gears	Chain replacement + system flushing

Preparing for replacement: tools, spare parts and conditions

To replace the timing chain with Nissan Almera Classic will be required specialized tool and original spare parts. Don’t skimp on the kit - cheap analogues often stretch after 30–50 thousand km. Optimal set for work:

• 🔧 Tools:
  • Set of sockets and ratchet wrenches (10–19 mm).
  • Torque wrench (to tighten the crankshaft pulley bolt to 100–120 Nm).
  • Puller for the crankshaft pulley (or a homemade device made from a timing belt and scrap).
  • Screwdrivers (flat and Phillips).
  • Pliers and round nose pliers.
  • Sealant Loctite 574 (for timing cover gasket).
• 🛒 Spare parts (original or high-quality analogues):
  • Timing chain kit (Nissan 13028-4M515 or Febi 24386).
  • Chain tensioner (Nissan 13070-4M500).
  • Chain stabilizers (upper and lower, Nissan 13085-4M500 And 13086-4M500).
  • Timing cover gasket (Nissan 13033-4M500).
  • Crankshaft oil seal (Nissan 13510-4M500, if it flows).

Also prepare:

• 📸 Camera or phone - fix the position of the gears and marks to showdown.
• 🧴 Carburetor Cleaner - for cleaning surfaces from old sealant.
• 🔦 Bright lamp or flashlight — lighting of the engine compartment.
• 🚗 Jack and stops — for lifting the front part of the car (when replacing the crankshaft oil seal).

⚠️ Attention: If you are replacing a chain for the first time, buy spare set of bolts for crankshaft pulley and timing cover. When re-tightened, the threads may break, and these bolts are difficult to find in the store.

Removing the old timing chain: step-by-step analysis

The process of dismantling the chain takes 4–6 hours (depending on experience). Main rule: do not turn the crankshaft or camshafts after removing the chainso as not to lose phases. Let's get started:

1. Remove the right front wheel and a plastic mudguard. This will give access to the crankshaft pulley.

2. Loosen the crankshaft pulley bolt (you will need an assistant or a flywheel stopper). Use the head on 19 mm and a long lever. Advice: If the bolt does not budge, try briefly turning on the starter (after removing the spark plugs).

3. Remove the alternator belt and other hanging straps that impede access.

4. Remove the crankshaft pulley using a puller. Be careful - the thread is left-handed!

5. Drain the antifreeze (if you plan to remove the pump) and unscrew the timing cover. It is attached to 10 bolts (some are hidden under brackets).

6. Fix the position of the camshafts using homemade clamps (you can use drills or a special tool Nissan SST: KV10112100).

7. Remove the chain tensioner, dampers and the chain itself. Mark the direction of its movement (there is usually an arrow on the new chain).

When removing the chain, pay attention to:

• 🔗 Gear condition - if they have chips or worn teeth, they also need to be replaced.
• 💧 Oil in pan - if it is black with metal shavings, after assembly it is necessary flush the system.
• 🔧 Fastening bolts — if they are corroded, replace them with new ones.

What to do if the crankshaft pulley bolt does not come off?

If standard methods (lever, starter) do not help, try:

1. Heat the bolt with a hair dryer (it will expand the metal).

2. Use a penetrating lubricant (for example, WD-40 Specialist) and wait 10–15 minutes.

3. Use an impact wrench (if you have access to it).

Important: Do not use excessive force - you may tear off the splines on the pulley!

Installing a new chain: marks, tension and assembly

Installation of a new chain is the most critical stage. Error in 1 tooth will lead to phase failure and possible engine repair. Follow the algorithm:

1. Check the marks on the camshafts and crankshaft. On Almera Classic the mark on the crankshaft should look up (12 o'clock), and the marks on the camshafts are back (towards the rear of the engine).

2. Install a new chain, combining colored links with marks on the gears. On a chain Febi or Nissan there are usually yellow or orange links.

3. Tighten the tensioner (remove the retainer first, if there is one). After installing the chain, the tensioner should automatically pick up the slack.

4. Turn the crankshaft 2 turns clockwise and check the marks again. If they match, the assembly was successful.

During assembly:

• 🔩 Tighten the timing cover bolts in the order specified in the manual (usually from the center to the edges). Tightening torque: 10–12 Nm.
• 🧪 Apply sealant apply a thin layer to the cover gasket. Remove excess after tightening.
• 🔄 Check the tensioner operation — after starting the engine, it should make a characteristic click (this is normal).

⚠️ Attention: If after assembly the engine does not start or runs intermittently, do not try to adjust the chain by turning it again. Remove the timing cover and check the timing marks - most likely the chain has jumped 1-2 teeth.

Common mistakes and how to avoid them

Even experienced craftsmen sometimes make mistakes when replacing the timing chain. Here are the most common of them and ways to prevent them:

Error	Consequences	How to avoid
Mark mismatch after assembly	Phase displacement, tripling, errors P0011/P0016	Check the marks after each cranking of the crankshaft
Retightening the crankshaft pulley bolt	Thread failure, pulley deformation	Use a torque wrench (100–120 Nm)
Using an old tensioner	Insufficient chain tension, accelerated wear	Always change the tensioner together with the chain
Savings on sedatives	Increased noise, vibration, open circuit	Change all dampers and shoes

Other critical points:

• 🔧 Use of non-original spare parts - chains from No-Name brands can stretch over 20 thousand km.
• 🧴 Insufficient cleaning of surfaces before applying sealant - will lead to oil leakage.
• ⏱️ Haste during assembly — a missing bolt or a loose bracket can result in damage.

Starting the engine after replacement: what to check

After assembly, do not rush to start the engine. First:

1. Check oil and antifreeze levels (if drained).

2. Make sure all connectors and hoses are connected (especially camshaft sensors).

3. Rotate the crankshaft by hand (key to 19 mm) by 2–3 turns - there should be no jamming.

4. Start the engine and listen:

   • 🔊 Norm: smooth sound, without clanging or grinding.
   • ⚠️ Alarm: metallic knocking - the chain may be over-tightened or under-tightened.

For the first time 500 km after replacement:

• 🚗 Avoid sudden acceleration and high speeds (let the chain “grind in”).
• 🛢️ Control oil level — a new tensioner may consume more lubricant.
• 🔧 Through 1,000 km Check the chain tension (tighten if necessary).

Replacement cost: comparison of self-repair and service

Timing chain replacement price Nissan Almera Classic varies depending on region and service level. Let's look at the approximate costs:

Expense item	On your own	In service (economy)	In service (premium)
Timing chain kit	4 000–6 000 ₽	5 000–7 000 ₽	7 000–10 000 ₽
Tensioner and dampers	2 500–3 500 ₽	Included in the package	Included in the package
Gaskets and sealant	800–1 200 ₽	1 000–1 500 ₽	1 500–2 000 ₽
Work	0 ₽	8 000–12 000 ₽	15 000–20 000 ₽
Total	7 300–10 700 ₽	14 000–20 500 ₽	23 500–32 000 ₽

Replacing the timing chain yourself saves money up to 70% cost, but requires time and accuracy. If you are not confident in your abilities, it is better to entrust the work to a proven service - mistakes will cost more.

Frequently asked questions (FAQ)

Is it possible to drive with a stretched timing chain?

Short term - yes, but not worth the risk. A stretched chain can jump several teeth, which will lead to a collision between the valves and the pistons. If the chain rattles when cold or there are phase errors (P0011, P0016), replace it as soon as possible.

How to check the timing chain without removing the cover?

Diagnostic methods without disassembly:

1. Listen to the engine at idle - a metallic clunk or “rustle” indicates wear.
2. Check chain tension through the viewing window (if there is one) or by pressing on it with a screwdriver (sagging more than 10 mm is critical).
3. Connect a diagnostic scanner and check for phase-related errors (P0011, P0340).

What oil should I fill in after replacing the chain?

For Nissan Almera Classic with motors QG15DE/QG18DE Suitable oil with viscosity 5W-30 or 5W-40 (specification API SL/SM or ILSAC GF-4). Recommended brands: Nissan Oil, Mobil 1, Liqui Moly. After replacing the chain be sure to change the oil and filter — old oil may contain metal shavings.

What happens if the chain is installed incorrectly?

The consequences depend on the degree of error:

• 1 tooth offset — engine troubles, increased fuel consumption, errors P0011/P0016.
• Offset by 2+ teeth — collision of valves with pistons, bending of valves, damage to the cylinder head.
• Overtightened chain — accelerated wear of dampers, circuit breakage.

If you suspect an error don't start the engine — remove the timing cover and recheck the marks.

Do I need to change the pump when replacing the chain?

Required if:

• Pump flows or makes strange noises.
• Vehicle mileage exceeds 150 thousand km.
• You remove the timing cover to replace the chain (access to the pump is open, and its resource is comparable to the life of the chain).

Cost of a new pump for Almera Classic — 2 500–4 000 ₽ (original Nissan 21010-4M505).