The car’s door hinges are a critically important body element that experiences tremendous loads every day. From their serviceability depends not only the ease of opening and closing, but also the density of the door, the absence of drafts and the characteristic knocking during movement. Over time, the factory lubricant loses its properties, mixes with dust and turns into an abrasive paste that accelerates wear of rubbing surfaces.
Many car owners mistakenly believe that it is enough to simply add fresh lubricant on top of the old one. This is a gross error leading to a rapid failure of the node. Old lubricant Often contains oxidation products and metal shavings that act as sandpaper. To prolong the life of the mechanism, it is necessary to completely remove the waste material before applying a new composition.
In this article, we'll look at this. How to Clean the Car Door Loops from the old lubricant, which solvents are most effective and how to properly conduct prevention. You will learn about the nuances of working with different types of pollution and get a step-by-step algorithm of actions that will help to avoid common errors when servicing the hinged elements of the body.
Why it is important to remove the old lubricant completely
The accumulation of dirt and old lubricant in the hinges is not just an aesthetic problem. The mixture of the consistent material with road dust, reagents and moisture forms a dense substance. This mass displaces fresh lubricating components and creates conditions for corrosion. If this layer is not removed, the new lubricant will not be able to penetrate the rubbing parts, working only superficially.
In addition, thickened lubrication significantly increases the force required to turn the door. This leads to increased load on (opening limiter) and the loop itself. In winter, such a mixture can freeze, which will lead to a jamming of the door or even a break of the loop with a sharp jerk. Regular cleaning It allows you to save the factory gap and the opening geometry.
⚠️ Attention: Using aggressive solvents on painted surfaces near the hinges can damage the varnish. Always protect the body with rags before starting work.
There is a myth that heavy lubrication of WD-40 will solve the problem of creaking. Actually, WD-40 It is an excellent solvent and moisture displacer, but a poor lubricant. It washes out the remnants of old fat, leaving the metal almost dry, which in a short time leads to dry friction and accelerated wear. Therefore, the cleaning step and the lubrication step should be separated.
Choosing the Right Cleaner: A Review of the Resources
The automotive chemistry market offers many options than you can effectively clean the mechanism. The choice depends on the degree of contamination and availability of the product. The most popular and affordable option remains spray-cleanerIt is often referred to as a “carburetor cleaner” or “brake.” It has a powerful dissolving effect and comes in a long tube cylinder, which allows you to reach hard-to-reach places.
For more delicate cleaning or when working with plastic elements, you can use special bitumen stain cleaners or universal degreasing agents. They are less aggressive to rubber and plastic, but may take longer to dissolve the dense layers of old lubricant. It is important to choose products that do not leave a sticky layer after drying.
- 🧴 Carburettor cleaner: powerful means for dissolving oils and soda, quickly evaporates.
- 🛢️ White spirit or kerosene: classic solvents, effective, but require careful application with a brush.
- 🚿 Gasoline "Kalosha": It is good for degreasing, but it has a strong smell and is fire dangerous.
- 🌿 Citrus cleaners: an environmentally friendly option for fresh contaminants, less effective against old lubrication.
When choosing a chemical, pay attention to its compatibility with materials. Some aggressive compounds can erode plastic sleeves if they are present in your car’s loop design. Safe solvent shall not cause swelling or softening of rubber seals.
If there is no special chemistry at hand, diesel fuel can be used. It perfectly softens the old lubricants, but after its use requires a thorough drying of the node.
Necessary tool and workplace preparation
Before starting cleaning, it is necessary to prepare the workplace. The process involves the use of chemically active substances that can damage the paint coating (LAC) and the lining of the cabin. It is optimal to work outdoors or in a well-ventilated garage. You will need a set of simple tools and materials.
To mechanically remove dense layers of dirt, brushes will be needed. Old toothbrushes or special brushes with hard bristles are ideal. To collect the flowing dirt, prepare rags, paper towels or cardboard, which can be put under the loop. Don’t forget about personal protective equipment: rubber gloves will protect the skin of the hands from chemistry.
| Tool/Material | Appointment | Importance |
|---|---|---|
| Aerosol cleaner | Lubrication dissolving | Tall. |
| Hard brush | Mechanical cleaning | Medium |
| Wash/Napies | Mud removal | Tall. |
| Needle syringe | Point-based application | Low. |
| Protective gloves | Hand safety | Tall. |
Preparation also includes fixing the door in the open position. Use a stop or ask your assistant to hold the door so it doesn’t slam in the process. This will ensure security and access to all sides of the loop.
Step-by-step instructions for cleaning hinges
The cleaning process requires consistency. First, you need to soften the old lubricant. Pour the selected cleaner on the loop, trying to get into all the gaps between the fingers of the loop. Let the chemistry work for 2-3 minutes. If the layer of dirt is very thick, the application procedure can be repeated.
After softening, proceed to mechanical cleaning. Use a brush to sweep the dissolved dirt from the depths of the mechanism. Movements should be directed from the center of the loop outwards, so as not to drive the abrasive even deeper. Periodically wipe the brush with rags. For hard-to-reach places, you can use dental floss or thin wire wrapped with fabric.
☑️ Cleaning algorithm
The final step is the final degreasing. After removing the bulk of the dirt, wipe the loop with clean rags soaked in a clean solvent. This will remove the thin film and dust residue. The metal should be clean and dry to the touch. Only then can you start the lubrication.
⚠️ Note: Do not use a metal scraper or knife to pick dirt inside the loop. You can scratch the working surfaces, which will lead to accelerated wear.
Lubrication selection and application technology
After high-quality cleaning, the question arises: how to lubricate the hinges? Regular motor oil is not suitable here, as it is too liquid and will quickly leak out. For door hinges, the best fit grease lithium-based or specialized aerosols with Teflon (PTFE) and molybdenum disulfide.
Lithium lubricants (e.g., Lithium Grease) have good adhesion and are not afraid of water. They create a strong protective layer. Teflon lubricants create a slippery film to which dust does not stick, which is especially important for open nodes. Graphite lubricants are also effective, but can stain clothing on contact.
Apply lubrication should be spot, in the gap between rubbing parts. If a tube aerosol is used, direct the jet inside the hinge and open and close the door several times so that the composition is distributed. Excess lubrication be sure to remove with a cloth, as they will collect dust.
The ideal lubricant for hinges should have high adhesion, water-repellent properties and maintain elasticity at low temperatures.
Frequent errors in the maintenance of door hinges
One of the most common mistakes is ignoring (the locker of the door opening). Many people only smear the loops, forgetting about this element. It is he who often creaks and wears out, as he experiences the load when fixing the door in the open position. It also needs to be cleaned and lubricated.
Another mistake is excessive lubrication.Porridge should not be. Excess material is squeezed outwards when the mechanism works, stains the clothes of the driver and passengers, and also turns into a magnet for road dust. Moderation The key principle of competent service.
- 🚫 Use of solidol: In the cold, it thickens and can prevent the normal closing of the door.
- 🚫 Lack of protection of LCP: The ingestion of the solvent on the paint can cause turbidity of the varnish.
- 🚫 Uncleaned lubricant: This leads to mixing of old dirt with new composition and loss of properties.
It is also worth mentioning the error of saving on materials. Cheap lubricants of unknown brands may contain abrasive inclusions or components that cause corrosion of non-ferrous metals, if they are in the design of the loop. It is better to use proven brands of autochemistry.
What happens if you don't clean the loops?
If you ignore the service, the backlash in the loops will increase. This will lead to sagging of the door, difficulties with closing (the door will not get into the lock) and the appearance of knocks when driving. In advanced cases, expensive digestion of hinges or replacement of the door will be required.
Frequency of service and seasonal nuances
How often should this procedure be performed? Manufacturers recommend inspecting the loops at each maintenance, but full cleaning and lubrication are required less often - about once every 2-3 years or every 30-40 thousand kilometers of run. However, the climatic conditions can make adjustments.
In winter, the requirements for lubrication increase. If you live in a region with cold winters and the use of reagents, it is better to check the condition of the hinges in autumn, before the onset of frosts. This will prevent the door from freezing and provide a soft run even in -30°C. In summer, the main enemy is dust and moisture, so control will also not hurt.
Watch the condition of the loops visually. If you notice that the lubricant has turned black, became dry or, conversely, turned into liquid dirt - this is a signal for immediate maintenance. Timely care for small details prolongs the life of the whole car and keeps its liquidity in the secondary market.
Can WD-40 be used for continuous lubrication?
No, the classic WD-40 is not a lubricant. It is designed to displace moisture and clean. For the constant operation of the friction unit, specialized lubricating compositions must be used. There are versions of WD-40 Specialist with lithium or silicone added, which can be used.
What is the best way to clean the door?
For the fixator, thick lubricants with molybdenum disulfide or Teflon are best suited. They create a strong layer that can withstand high friction loads when the door is locked in the open position, and do not squeeze out as quickly as liquid oils.
How do you remove rust from the axis of the loop?
If rust is found after cleaning, use a rust converter (based on orthophosphoric acid) locally on the damaged area. After reaction and drying, be sure to lubricate this area with anticortisol or thick lubricant to block the access of oxygen.
Why does the squeak come back a week after the lubrication?
Most likely, a poor-quality cleaning was carried out. The new lubricant mixed with the remnants of the old mud, and the abrasive effect resumed. Or the lubricant was washed away with a high pressure wash immediately after application, not having time to gain a foothold.