<em>Nissan Almera Classic</em> rear pad spacer: when to change and how to do it yourself

Rear brake pad spacer in Nissan Almera Classic - a small but critical detail on which the uniform fit of the pads to the drum and braking efficiency depend. Many owners are faced with problems ranging from squeaks and uneven wear to completely seized rear wheels. Moreover, in 70% of cases it is the spacer bar that is to blame - it becomes deformed, rusts or loses its elasticity.

In this article we will look at how to diagnose a malfunction of the spacer bar on Almera Classic (including modifications B10 And N16), what tools will be needed for replacement, and why you shouldn’t skimp on the quality of spare parts. You will also find step-by-step instructions with photos, a compatibility table for analogues and answers to frequently asked questions - from choosing a lubricant to the nuances of reassembly.

Signs of a faulty spacer bar: when to sound the alarm

Spacer bar (also called spacer spring or adjusting rod) performs two key functions: it returns the pads to their original position after braking and compensates for their wear. If it fails, the consequences appear immediately - and it is dangerous to ignore them.

Main symptoms:

• 🔊 Grinding or squealing when braking (even at low speed). It is often confused with pad wear, but if the sound is metallic, it is the friction of the bar on the drum.
• 🚗 Uneven braking: the car pulls to the side, one wheel locks before the other.
• 🔥 Rear drums overheating. After a trip, they cannot be touched - a sign that the pads do not move away from the surface.
• 🛠️ Wheel jam (in advanced cases). Usually occurs after a long period of parking or at low temperatures.

On Nissan Almera Classic The spacer bar is especially vulnerable due to the design of the rear brakes: it is located at the bottom and is constantly in contact with dirt and moisture. On average, the resource of the original bar is 40–60 thousand km, but when driving off-road or in high humidity conditions, this period is halved.

⚠️ Attention: If, after replacing the pads, you notice that the brake pedal has become “soft” or the travel has increased, this is a sign that the spacer bar is not securing the pads in the correct position. In this case, urgent diagnosis is required!

Which spacer bar to choose: original vs analogues

There are more than 20 options for spacer bars on the market. Almera Classic, but not all of them are equally reliable. Original part from Nissan has an article number 40520-4M000 (for models up to 2006) and 40520-4M00A (after 2006). Its advantages are an ideal fit and a long service life, but the price is steep: from 1,200 to 1,800 rubles per piece.

Alternative options:

Brand	Article	Price (per piece), ₽	Features
TRW	GSK300	800–1 100	High quality steel, but requires lubrication during installation.
Brembo	P 68 010	950–1 300	Reinforced design, suitable for aggressive driving style.
Febi	23410	600–850	A budget option, but it often rusts after 20–30 thousand km.
ABS	900308	500–700	Suitable for temporary replacement, but not recommended for long-term use.

When choosing an analogue, pay attention to:

• 🔧 Material: optimally - hardened steel with anti-corrosion coating.
• 📏 Thickness: the original has a thickness of 3.2 mm, cheap analogues are often thinner (2.8–3.0 mm), which leads to deformation.
• 🛡️ Presence of a protective layer (zinc, chromium). Without it, the bar will rust within a year.

Tools and preparation: what you need for replacement

Replacing the spacer bar with Almera Classic does not require special equipment, but you can’t do without some tools. Here's the full list:

• 🔧 Keys: carob for 12 and 14 mm, end for 17 mm (for unscrewing the guides).
• 🔨 Hammer (preferably rubber) and punch to remove the drum.
• 🧲 Magnet or tweezers - so as not to lose small springs.
• 🧴 Lubrication: Molykote G-3401 (optimal) or Litol-24 (budgetary).
• 🧼 Brake cleaner (For example, Hi-Gear) and rags.

Also prepare:

• 🚗 Jack And supports (working on one jack is dangerous!).
• 🔋 WD-40 or a similar composition for unscrewing soured bolts.
• 📸 Smartphone - to photograph the location of parts before disassembly.

⚠️ Attention: If the drum does not come off even after unscrewing the guides, do not hit it with a hammer with all your might! This may damage the bearing. It is better to use a puller or evenly tap along the edge with a wooden mallet.

Place the car on a flat surface and secure the handbrake|

Remove the wheel and clean the brake mechanism from dirt|

Place a stop under the threshold of the opposite side (in case the jack falls) |

Prepare a container for small parts (springs, staples) |

Treat threaded connections with WD-40 10–15 minutes before starting work-->

Step-by-step instructions: how to replace the spacer bar

The replacement process is the same for Nissan Almera Classic B10 And N16, but there are nuances depending on the year of manufacture. Below are universal instructions taking into account typical errors.

Step 1: Removing the brake drum

1. Loosen the wheel nuts while the car is on the ground.
2. Raise the car with a jack and remove the wheel.
3. Unscrew the two drum guide bolts (17 mm wrench). If they don't budge, use WD-40 and an impact tool.
4. Remove the drum by tapping it evenly on the back side. If it gets stuck, use a puller or heat the edge with a hair dryer (not higher than 100°C!).

Step 2. Removing the old spacer bar

1. Remove the upper and lower tension springs (use pliers).
2. Disconnect the handbrake cable from the shoe lever.
3. Carefully remove the pads and spacer bar. Pay attention to its position - the new one should be installed in the same way!

Step 3. Installing a new strip

1. Clean all brake parts from dirt and rust (use a wire brush and brake cleaner).
2. Apply a thin layer of lubricant to the contact points between the bar and the pads and backing plate. Do not use graphite lubricant - it collects dirt!
3. Install a new spacer bar, aligning it with the grooves on the pads. Make sure it does not become deformed during installation.
4. Reassemble the mechanism in reverse order, starting with the lower spring.

Step 4: Check and Adjust

1. Install the drum and tighten the guide bolts (tightening torque: 25–30 Nm).
2. Adjust the handbrake: it should operate at 3-5 clicks of the ratchet mechanism.
3. Check the brakes by accelerating smoothly to 30 km/h and applying the brakes. If the car pulls to the side, repeat the adjustment.

Typical replacement mistakes and how to avoid them

Even experienced car owners make mistakes that lead to repeated repairs. Here are the most common:

1. Using the wrong lubricant. Graphite or silicone lubricant does not withstand high temperatures and burns out, which leads to jamming. Use only Molykote G-3401 or Slipkote 220-R DBC.
2. Incorrect spring installation. If the upper or lower pad spring is installed crookedly, the bar will work at an angle and quickly deform.
3. Ignoring handbrake adjustment. After replacing the bar, the handbrake cable often requires tightening - otherwise the brakes will be “wobbly”.
4. Savings on cleaning. If you don't remove the rust from the backing board, the new strip will catch on bumps and wear out quickly.

Another common problem is retightening drum guide bolts. This leads to flange deformation and vibrations during braking. The tightening torque should not exceed 30 Nm!

What should I do if my brakes squeak after replacing them?

Creaking can occur for three reasons:

1) Poor quality lubricant - replace it with Molykote G-3401.

2) Dirt getting between the pad and the drum — disassemble the mechanism and clean the parts.

3) New strip defect (defect or fake) - check its geometry with a caliper (thickness should be 3.2 mm ±0.1 mm).

Service life and prevention: how to extend the life of a spacer bar

Average life of the spacer bar Almera Classic - 50 thousand km, but with proper care this period can be increased to 80–100 thousand km. Here's what you need for this:

• 🚿 Brake washing every 10 thousand km. Use special cleaners (for example, Liqui Moly Bremsen-Reiniger), but avoid direct contact with water on the bar.
• 🧴 Lubrication Renewal once every 20 thousand km. Even if the bar looks normal, the old lubricant loses its properties.
• 🔧 Checking the backlash pads at every maintenance. If the pads are loose, the bar is working under increased load.
• 🚗 Avoiding long-term parking with the handbrake pulled, especially in winter. This leads to “sticking” of the bar.

If you often drive off-road or in high humidity conditions, it is recommended to remove the drums every 15 thousand km and check the condition of the bar. At the first signs of corrosion, it must be cleaned and coated with an anti-corrosion agent (for example, Dinitrol 4010).

FAQ: answers to frequently asked questions

Is it possible to drive with a faulty spacer bar?

In the short term, yes, but it is dangerous. A faulty bar leads to uneven wear of the pads, overheating of the drums and an increase in braking distance. In the worst case, the wheel may jam while driving, especially after driving through a puddle (due to the sudden cooling of the overheated drum).

How to distinguish an original bar from a fake?

Original plank Nissan has:

• Laser engraving with the article number on the inside.
• Smooth zinc layer without bubbles or streaks.
• Thickness 3.2 mm (checked with a caliper).
• Packaging with a hologram and barcode, which can be checked on the website Nissan.

Counterfeits are often thinner, with rough welding and uneven finishes.

Do I need to change the bar when replacing rear pads?

Not required, but recommended. If the bar has served more than 50 thousand km, its elasticity decreases and it does not ensure proper fit of the new pads. In addition, when removing the drum, the bar is often deformed. The cost of a new plank (from 600 ₽) is not commensurate with the risks of repeated repairs.

What to do if the bar breaks while moving?

If the bar bursts or comes off:

1. Stop immediately and turn on your hazard lights.
2. Check if the wheel is blocked. If yes, loosen the handbrake cable (it can hold the pads in a clamped state).
3. If the wheel rotates freely, carefully drive to the service station or home, avoiding sudden braking.
4. Do not use the handbrake until the problem is corrected!

Can the spacer bar be repaired?

Theoretically, yes, but this is a temporary solution. If the bar is bent, it can be straightened with a hammer on an anvil, but after this it will lose its elasticity. Welding or soldering is unacceptable - the seam will not withstand the load. The best option is to replace it with a new one.