Oil leakage from under the valve cover is one of the most common problems. Nissan Almera generations G15, N16 And N17 with engines HR16DE, K4M And QG15DE. Even with careful use, the gasket loses its elasticity after 80–100 thousand km, and if it overheats or uses low-quality oil, even earlier. The problem cannot be ignored: oil gets onto the timing belt, spark plugs and suspension elements, which leads to expensive repairs.

In this article you will find step-by-step instructions with photos, a detailed list of tools, recommendations for choosing a gasket (original vs analogues) and unique nuances for Almera with 16-valve engines, which are not in standard manuals. We will also look at typical mistakes due to which, after replacement, the leak returns after 1–2 thousand km.

Signs of valve cover gasket wear

The first symptoms of a problem often go unnoticed until the leak becomes critical. Pay attention to the following signals:

  • 🔴 Oil stains under the hood near the cylinder head (cylinder head) - especially after long-term parking.
  • 💨 Burning smell when the engine is running: oil flows onto the exhaust manifold and burns.
  • 🛢️ Oil level falls faster than usual, although there are no external leaks under the engine.
  • ⚡ Misfires due to oil getting on the spark plugs (especially important for Almera N16 with engine QG15DE).
  • 🔧 Dirty air duct: Oil is sucked in through the crankcase ventilation pipe.

On Nissan Almera G15 (2013–2019) with motor HR16DE the leak is often disguised as drips from the breather. To identify the problem, wipe the cover dry and check after 200–300 km: if oil appears along the circuit, the gasket is to blame; if only near the breather, the ventilation valve is clogged.

⚠️ Attention: On Almera Classic (N16) with engine QG15DE A gasket leak can lead to oil getting into the spark plug wells. If you ignore the problem, it will cause detonation and damage to the ignition coils.

Which gasket to choose: original or analogues?

The original gasket from Nissan has the article number 11044-JM00A (for HR16DE) or 11044-5M500 (for QG15DE). Cost - from 1,200 to 1,800 rubles. But many car owners prefer analogues, which are cheaper and sometimes even more durable.

Brand Article Price, rub. Features
Nissan (original) 11044-JM00A 1 200–1 800 Soft material, but can harden at low temperatures.
Elring 384.670 800–1 100 Reinforced design, suitable for turbocharged versions.
Victor Reinz 15-53397-01 900–1 300 Better elasticity, recommended for regions with frost.
Corteco 23020300 700–950 A budget option, but may require replacement after 50–60 thousand km.

For Almera G15 with engine HR16DE gasket from Renault (8200772900), since the motor is also used in Renault Logan/Sandero. It is 30-40% cheaper than the original, but is not inferior in quality.

⚠️ Attention: Gaskets from NoName-brands (for example, ATC or Trialli) often have imprecise geometry. This leads to oil leakage in the corner areas of the cover, where the pressure is higher.
📊 Which gasket do you prefer to install?
  • Original Nissan
  • Elring
  • Victor Reinz
  • Corteco
  • Analogue from Renault
  • Other brand

Tools and Supplies

To replace the valve cover gasket with Nissan Almera you will need:

  • 🔧 A set of sockets and a ratchet wrench (the head must be on 10 mm for cover bolts).
  • 🔨 Screwdriver with a flat blade (for prying off the old gasket).
  • 🧴Sealant Loctite 574 or ABRO 11-AB (only for corner joints!).
  • 🧼 Carburetor cleaner or kerosene (for degreasing surfaces).
  • 🧻 Lint-free napkins or microfiber.
  • 🔩 Torque wrench (optional, but recommended for precise bolt tightening).

For Almera N16 with engine QG15DE Additionally you will need:

  • 🔧 Star key T30 (to remove the plastic engine casing).
  • 🔌 Pliers (for removing clamps from ventilation pipes).

☑️ Preparing to replace the gasket

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Step-by-step replacement instructions

Valve cover gasket replacement process Nissan Almera takes 2–3 hours. The main thing is to take your time and follow the sequence.

1. Removing the valve cover

On Almera G15 (HR16DE):

  1. Remove the plastic engine cover (4 bolts on 10 mm).
  2. Disconnect the crankcase ventilation pipe (the clamps can be loosened with a screwdriver).
  3. Unscrew the 15 bolts securing the cover (start from the edges so as not to deform the cover).
  4. Carefully pry the cover with a screwdriver and remove it. If it gets stuck, do not apply force, but treat the joint with WD-40.

On Almera N16 (QG15DE):

  1. Remove the throttle assembly (4 bolts on 10 mm and sensor connector).
  2. Unscrew the throttle cable bracket (2 bolts on 12 mm).
  3. Remove the cover after first disconnecting the phase sensor connector.

2. Cleaning surfaces

This is the most important stage! Old sealant or oil residue will cause the leak to reoccur. Use plastic scraper (not metal!) and carburetor cleaner. Pay special attention to:

  • Corner joints of the cylinder head and cover.
  • Oil main channels.
  • Bolt locations.
💡

Before installing a new gasket, apply a thin layer of sealant Loctite 574 at the corner joints of the cylinder head. This will prevent leaks in the most stressed areas. Do not use silicone sealant - it cannot withstand temperature and pressure!

3. Installing a new gasket

The gasket should lie flat, without distortion. On Almera G15 please note:

  • Protrusions for bolts - they must coincide with the holes in the cover.
  • Oil channels - the gasket should not block them.

On Almera N16 additionally check:

  • Condition of the sealing rings under the bolts (if worn, replace with new ones, article number 11026-5M600).
  • The integrity of the plastic valve guides - if damaged, they also need to be replaced.

4. Bolt tightening

The bolts are tightened to 2 stages in a criss-cross pattern:

  1. Pre-torque 5 Nm.
  2. Final torque 10 Nm (for HR16DE) or 8 Nm (for QG15DE).

Without a torque wrench, rely on “average force” - overtightening will lead to deformation of the cover!

💡

On Nissan Almera G15 After replacing the gasket, be sure to check the operation of the crankcase ventilation system. A clogged PCV valve is the main reason for repeated leakage after 1–2 thousand km.

Common mistakes and how to avoid them

Even experienced craftsmen make mistakes that ruin all the work. Here are the most common:

  • 🔧 Bolt tightening - leads to cracks in the lid (especially important for aluminum lids HR16DE).
  • 🧴 Using silicone sealant — it cannot withstand temperature and pressure, after a month the gasket “floats”.
  • 🔩 Uneven tightening — if you do not follow the “crosswise” pattern, the lid will become deformed.
  • 🛢️ Ignoring cleaning of oil channels — the remains of old oil and dirt clog the lubrication system.
  • 🔌 Unconnected ventilation pipe - leads to increased pressure in the crankcase and squeezing out the gasket.

On Almera N16 often forget to check the status o-rings under the cover bolts. If they tan or crack, oil will leak through the bolts rather than through the gasket. Replace the rings (part no. 11026-5M600) even if they are visually intact, their cost is only 200–300 rubles.

⚠️ Attention: On the engine HR16DE (Almera G15) an error may appear after replacing the gasket P0300 (misfire). This is due to oil getting into the spark plug wells during work. Before starting the engine, unscrew the spark plugs and blow out the wells with compressed air.

When is a valve cover required to be replaced?

Sometimes the problem is not in the gasket, but in the lid itself. It needs to be replaced if:

  • 🔍 Discovered cracks (especially in bolt areas).
  • 🛠️ Cover deformed from overtightening the bolts.
  • 🔥 Appeared traces of overheating (blue discoloration of metal).
  • 🔧 Ripped off carving in the bolt holes.

Original cover for HR16DE has an article number 11010-JM00A (price ~5,000 rub.), for QG15DE — 11010-5M500 (~4,500 rub.). Analogues from Febi or Metalcaucho will cost 2-3 times cheaper, but check their geometry before purchasing.

How to check the cover for deformation?

Place the lid on a flat glass surface (for example, table glass). If there are gaps of more than 0.5 mm, the cover is deformed and requires replacement. Also inspect it against the light: cracks are often visible only from a certain angle.

Frequently asked questions after replacement

❓ After how many km can a new gasket leak?

With proper installation and high-quality installation, there should be no leaks for at least 50–80 thousand km. If oil appears after 1–2 thousand km, check:

  • Tightening the bolts (possibly loose).
  • Condition of the crankcase ventilation system (PCV valve).
  • The quality of the sealant (silicone compounds often leak).
❓ Is it possible to drive with a gasket leak?

Short-term - yes, but the risks are high:

  • Oil will get onto the timing belt, which will cause it to slip or break.
  • On Almera N16 oil flows into the spark plug wells, causing misfires.
  • If there is a strong leak, the oil level will drop, which can lead to oil starvation and engine damage.

Maximum - 1-2 weeks of driving until you buy spare parts.

❓ Do I need to change the oil after replacing the gasket?

Required if:

  • Dirt or particles of an old gasket have gotten into the oil.
  • The oil level is critically low (topping up will not solve the problem).
  • The oil is old (more than 7–8 thousand kilometers).

For HR16DE oil recommended 5W-30 (For example, Mobil 1 ESP 5W-30), for QG15DE — 5W-40 (Liqui Moly Optimal 5W-40).

❓ Why did a knock appear in the engine after the replacement?

Probable reasons:

  • Foreign particles (for example, gasket pieces) getting into the oil channels.
  • Incorrect assembly - they forgot to connect the ventilation pipe or phase sensor.
  • Overtightening of the cover bolts, which led to deformation of the cylinder head (rare, but possible).

Immediately turn off the engine and check the assembly!

❓ Can the pad be reused?

No! Valve cover gasket - disposable part. When removed, it becomes deformed, loses elasticity and will not provide a tight seal. Even if it visually looks intact, when reinstalled, a leak will appear after 1–2 thousand km.