Automotive Voltage Regulator

Automotive Voltage Regulator Function

An automotive voltage regulator is an intermediary between the alternator and the battery. It regulates or maintains a constant output voltage despite variations in the input voltage, thus, the constant supply from the alternator to the battery.

The alternator usually produces more than 15 volts when the car is running and if there is no regulator the battery will be repeatedly overcharged and will be ruined in a short time. Not only the battery is ruined but the car’s fuses and electrical lines may also melt.

A normal battery could serve your car for three to four years or even more depending on how the car is used. Without the voltage regulator, your battery life will be shortened and will cause you more expenses in car maintenance.

How Current is Regulated?

A car’s normal electrical voltage should not exceed 14.5 volts when the car is revved. When the car is idle the voltage should not be lower than 12.6. The normal voltage of a battery is 12 volts.  This will supply all the lights, the fans or blowers, air-condition, dashboard, and everything including audio if there are.

If the regulator is set to charge the battery at 12 volts it will run short. In the long run, you will notice that the headlights dim. That tells you that the battery is being drained because it is being undercharged.

In that case, the regulator must be set at a higher voltage than the battery reserves and conserves.

In a brand new car, the company has set everything in place. But in a car used for many years and it had gone electrical modifications and repairs, the new owner may not know that there is a voltage related issue. It should be fixed as soon as possible for if not you will have more expenses due to battery ruin and electrical lines busting.

How does the Regulator work?

Either undercharging or overcharging are both detrimental to the car battery but the worse thing is overcharging. Never an alternator is running in a deficit current because it produces a maximum or even more than 15 volts.

This is the reason why the voltage regulator is a very important part of the electrical system in a car. It is to set the proper voltage for the battery that will work for all the electricity needed during the night and day operation of the vehicle.

The alternator should not work directly or it bypasses the battery, its function is to charge the battery and the battery will do its function for electrical supply for the car to work efficiently. But in between the regulator does its work also.

Let’s picture it in this way. Everyone owns a cellphone and you need to charge it when the battery is low. You needed a charger and the charger is plugged into the electrical outlet that supplies 110 to 220 volts. The cellphone charger is equipped with a voltage regulator inside the charger. When you charge your cellphone from a 220-volt electrical line, without the charger’s voltage regulator the cellphone battery will surely burst.

From 220 volts to 6 volts you can charge your phone safely.

This is how the voltage regulator works in a car. The alternator produces a current that is more than what the car overall operation needs and the voltage regulator controls, sets the limit of electrical current that is enough for the battery.


Symptoms of battery overcharging

1. Battery liquid dissipates-batteries maintained with liquid or water should stay in the for a long time in the level indicated on the battery. If it dissipates in an unexpected time you suspect that the battery is over overcharged.

2. Battery overheats and liquid boils-if you drive your car and you see liquid spills over the battery, even not much, that means it’s being overcharged.

3. Fuse Melts-You may be wondering why the fuses melt. Not only fuses but the wirings. The reason is that the battery is being overcharged. Because the battery has a limited load it releases whatever excess that it cannot contain.

These are some of the signs that you have to keep watch when your vehicle doesn’t have a dashboard that warns you of electrical issues. 

In need of voltage regulators, you can have your choice of brands:


Before you leave please leave a comment on the box below. I would like to hear your stories on automotive, your driving experiences and your wisdom that would enrich the knowledge of our readers.

Thank you and you can also watch videos related to this post:

Voltage Regulator Videos




Why Engine Doesn’t Start

You wanted to start your engine but it doesn’t. Why?

There are several factors you would consider. Let’s see what your engine’s problem.

1. When you turn on the key and your dashboard lights are normally functioning I guess you have no electrical lines busted.

If your car’s dashboard is working properly this can help you determine some issues on your engine. However, if the dashboard has electrical line problems it will not help you diagnose any issue on other parts of your vehicle.

2. Now you turn more the key for your heater (for diesel and for older cars) and it works properly. You should be happy that no lines have an issue.

For almost three days I have been puzzled why I cannot start the engine. Most of the time it just clicked and sometimes by accident it cranks.

I brought the battery to the shop to be checked and it’s working well. It’s even fully charged. The next step is to take down the starter for a checkup and possibly repair it. But, it neither had an issue.

By accident, we discovered that the culprit is the heater switch. Never it gave me a problem but only this time.

Let me explain what’s the connection of this heater switch. In an older car, we have this in preparation for the engine start. You have to press this to heat the glow plugs before you fully turn the ignition key. This is only for the first time when the engine is not used for overnight or for around 10 hours during the day.

The problem with this experience was that it works when heating the glow plugs but when you totally turn the key to crank the engine it doesn’t work. So it was an accident that this switch is being halfway pressed while the ignition key is turned. It’s weird because the normal way is to heat it, then release the switch and turn the ignition key. So this has to be fixed to bring it back to the usual and normal way.

Why Engine Doesn't Start-Heated Switch


3. When fully turning your key and the engine cranks but it’s slowly turning you may have a weak battery.

There are different reasons why a battery is weak. It may have drained

-draining of battery when parked for a long time may be caused by faulty wirings.
-draining when you are driving is a symptom that your alternator is not working properly.
-or, battery drains because it’s too old and it needs replacement.

4. You turn it more to crank your engine and it clicks but it doesn’t crank. You may be having an issue with your heater switch or starter.

Now if you have no issue with your heater switch and battery and the engine doesn’t crank you may be having an issue with the motor starter. 

A motor starter that has a problem will not crank the engine. You will hear a click but doesn’t turn. It needs to be fixed. If it cannot be fixed, you may need to replace it.


This starter above is still working now. The armature gear has been deformed and I brought it to the lathe machine shop and they rebuilt it.

Are you looking for a replacement for your motor starter? You can find it here.






Armature Gear Rebuild

Armature Gear Rebuild is possible and an option these days. If you can’t wait for a replacement because you badly needed your car you just go to the shop and let it be fixed.

Due to long use and the tear and wear of parts, this starter armature has reached the point that the gears that connect and turn the flywheel have been deformed. There are two options a car owner takes, it’s either to replace or to have it rebuilt.

Starter Armature Rebuild-Toyota L Starter


I opted for rebuilt because I believe it can serve equally and qualitatively. If you opt to buy this part prices ranges from 500 pesos and up. See armatures.

Starter Armature Rebuild-Toyota L Starter Armature

Starter Armature Rebuild-Toyota L Starter Armature







These days repair of auto parts is becoming the common choice due to the high prices of parts. Not only because of the price but also to the availability of the part you needed. When you go to the auto parts centers and none is available you have to order it and wait for months.

You needed very much your car and you can’t wait to have it fixed. The rebuilding of parts is no longer impossible this time.  There are lathe machines that can do it. As what they have done to this armature they build it up and run it to the machine for grinding and shaping.

For other armature parts like magnetic wire when it’s damaged due to accidental incidents there are shops that can do rewinding. This age is equipped with skills that attend to auto-owners’ needs encase themselves decide for repair rather than replacements.


Armature Function

The armature is a part of the starter that moves forward when electricity is applied. When it moves forward the shaft with gears fits the gears of the flywheel. As the armature continues to turn the flywheel turns until the engine is cranked and started. When the engine is running the armature must move backward and the engine goes on.

A detailed discussion on the parts and function of the armature is found in From Far A Day to Modern Day


Starter Armature Rebuild-armature rebuilt


If your option is for replacement try to see if what you are looking for is available here: Armature brand




Youtube Auto Body Repair Videos

Youtube auto body repair videos include painting and everything to make the auto body good looking. If you want to learn from the newbies to expert then I have listed many of the videos that can certainly help you in your desire and goal of becoming one of them.

Youtube Auto Body Repair Videos-car painting


1. For Newbies- Auto Body And Car Painting Footage- Step by Step DIY SPECIAL

2. DIY Auto Body and Paint Secrets Step-by-Step!

3. How to Paint Your Car Yourself – Auto Body Repair (1 of 2)

4. How to do Auto Body Repair and Paint with NO air compressor

5. Do This Before Painting Your Car At Home! – DIY Auto Body Repair

6. Auto Body Repair, Denting, And Painting

7. How To Auto Body Repair” Custom Painting!

8. San Diego Mobile Auto Body Shop / Paint Scratch Repair.

9. Finishing: Car Body Repair and Paint with Professional

10. How To Paint Any Car or Project Yourself Step by Step in 15 minutes!

11. DIY How To Bondo Auto Body Repair (Tips and Tricks) To Prevent Common Problems with Body Filler

12. Car Body Repair Tips Filling & Sanding for Paint.

13. How to Paint Your Car Yourself – Auto Body Repair (part 2 of 2)

14. Learn Auto Body And Paint | Auto Paint And Body Repair | Auto Body Work Tips

15. How to repair a Dent and a Scratch in your paintwork

16. Auto Body Repair & Painting Course – How to Paint a Car

17. Non-Stop Paint Repair from Bon Auto Body

18. How To Spray Paint Your Car – Auto Body Repair School Training! Video 3/5

19. How To Paint a Car in Your Garage – Repairing Dents, Chips And Preparing for Professional Paint!

20. How To Bodywork A Car & Spray Primer-Surfacer on Hands-On Cars 11 – Get It Straight – from Eastwood

21. Body rust repair and paint with no compressor or fancy tools! blending and more.

22. Modern Autobody Repair Techniques

23. How Do I Sand “BONDO” and Make It “PAINT READY”? – From Start To Finish

24. For Newbies- Auto Body And Car Painting Footage- Step by Step DIY SPECIAL

25. How To Auto Body Repair Custom Painting!

26. How To Repair Faded Peeling Paint On Your Car or Truck-Automotive Paint and Body Tech Tips-Part 3

27. Paint and Auto Body Repair Job as performed by Garvey Auto Body in Upstate NY

28. How To Scuff Paint For Blending-Automotive Paint And Body Shop Tech Tips

29. Car Body Repair DIY (rust, holes, filler, sanding, primer, spray paint, lacquer)

30. Sanding Steps To Prep A Car For Paint and Clear



Auto Body Repair and Painting

Automobile body repair and painting are lucrative tasks and it is always a necessity for car care as of this age.

Every time I pass by a shop of auto body repair and painting I’m being obsessed. I really want to do it myself. I enjoy manual work and I don’t consider it as hard work for me. If there would be a time or if I could bring back time I would like to learn the secrets of auto body repair and painting.

I have a friend who does the work and he sustains his family out of it. He was once a mechanic but he switched to body repairs that include all motorcycle, tricycle, automobiles, and trucks. The only thing he doesn’t do is painting because he acquired asthma and it would be a struggle for him.

It’s an inevitable instance that car paints fade and need to be repainted to preserve the body from rotting. Accidents come anytime and automobile bodies need to be repaired. And there are hundreds of thousands of car units are moving every day in every part of the world.

If you are skilled you will have a great opportunity to help your self and your family earn a living. If you are interested let’s have the things you needed to invest in in order to effectively do the job.

1. Mechanical Tools

In choosing your tools it would be easy if you are already using some brands and you know the quality. Basically, branded tools are more expensive than low quality. However, you will not regret if you have invested in the quality ones since they will last for a long time and they fit really, they are precise.

Auto Body Repair and Painting-Mechanical Tools




Auto Body Repair and Painting-Mechanical Tools3


I will enumerate some of the branded tools that may suit your taste in price and quality.

Mac Tools
Wright Tool

You can have the details of these tools from this site: https://www.bestmechanictoolset.com/top-10-mechanic-tool-brands/

2. Course for Skills Development


The Technical Education and Skills Development Authority (TESDA) is the government agency tasked to manage and supervise technical education and skills development (TESD) in the Philippines. It was created by virtue of Republic Act 7796, otherwise known as the “Technical Education and Skills Development Act of 1994”. The said Act integrated the functions of the former National Manpower and Youth Council (NMYC), the Bureau of Technical-Vocational Education of the Department of Education, Culture and Sports (BTVE-DECS) and the Office of Apprenticeship of the Department of Labor and Employment (DOLE).

The Technical Education and Skills Development Authority or TESDA offers a long list of free or affordable courses that will help you expand your knowledge in a specific subject. Established in accordance with the Republic Act No. 7796 or the Technical Education and Skills Act of 1994, TESDA provides hands-on training or online instruction. It aims to help individuals in developing their skills through a rigorous training program that will boost their chances of employability.

All graduates of this program are certified and qualified for employment anywhere around the world.

2. The Secrets of Custom Spray Painting and Body Work Repair

Is online training which includes video created by Mario Goldstein, the artist. It is a Do-It-Yourself Spray Painting and Body Work Course.


Auto Body Repair and Painting-Paint Spray Secrets


I hope this brief article helps you in deciding to take the opportunity to be one of those skilled workers of your own country by investing in the best tools and trainings provided both in the offline and in online.

They are available all around us and it’s a privilege to have them for free if not affordable for everyone.






Motorcycle and Car Collision

This motorcycle and car collided on August 21, 21019 in the town of Mabitac, Laguna.

The motorcycle is headed to the East via the main road and the car coming from the South entering the main road. The good thing about it is that no one was hurt. There was no police yet when we pass by and took the photo. We headed home and we did not wait for the investigation on the hope the people around who witnessed the incident will faithfully contribute to the best of the two parties involved.


Motorcycle and Car Collision-accident imageMotorcycle and Car Collision-accident image2Motorcycle and Car Collision-accident image3Motorcycle and Car Collision-accident image4Motorcycle and Car Collision-accident image5

This place is at the center of the town so the speed must be controllable and is not prone to accident. Only a careless, absent-minded, and an aggressive driver is prone to unexpected incidents.



What Does an Alternator Do

You may be wondering, as I do, what an alternator is and what does it do. But the fact that you opened this post and you are reading it you will orient yourself on this particular auto part.

There was a time when I heard about it but I could not figure out how does it look, where is it located and what does it do in the performance of the engine.



Where is it located

The alternator is located at the drive belt end of the engine. It is conspicuous and is accessible from under the hood.

What does an alternator do-alternator location 1


As you can see here in this model, the alternator is located in the upper right side of the engine. In other models, it is located on the left side.

In the image below you will see how the alternator is placed or attached to the left side end of the engine.

What does alternator do-alternator engine left side


What does the alternator do?

There are two functions of the alternator in the engine operation. It charges the battery and it helps in the power booster brake system.

Charging the battery

When the engine is started and ran the alternator starts to work in charging the battery. The charging output of the alternator must be 14.2 V to 14.5 V as measured right across the battery posts.

When the alternator charge output is more than 14.5 V when revved, it will overcharge the battery in the long run and the battery cell will not last long.

Alternator Boosts Brake System

As the alternator is run by the engine it does not only produce current to charge the battery but it also produces air supply to the brake vacuum booster. In that way, the air that circulates in the brake vacuum booster is compressed to help push the brake piston when the pedal is pressed making it convenient for the feet for it doesn’t need much effort to apply a brake pressure whether you are driving a huge vehicle or a small car.

Signs of a Failing Alternator

Dim headlight-when the alternator starts to fail you will notice that the headlights are dimming or it may even flicker.

Dying battery-meaning your battery will gradually weaken because it is not being charged. All electrical parts that needed to work when you needed them are now failing too. Flashers, stoplights or brake lights, and fans will no longer function normally.

Difficult to start the engine-this is because of a weak battery. The more you crank the engine and it doesn’t start the more the battery will become weak.

Engine Stall-a time will come that your engine will stall because the battery is consumed and the alternator produces no current, no fire that ignites the petrol inside the combustion chamber.

It’s Time for Repair or for Replacement

When everything else fails your only alternative is to bring it to a technician for repair. Usually, repairs will cost you 350 to 400 pesos when no parts are for replacement. However, it will cost you more if you buy for replacements of parts but it is more costly if you will replace the alternator itself.

If the technician advice you to buy a piece of parts for more than three thousand it would be better to buy a brand new alternator. than to spend more than the half price of the brand new one.

In Case You Need an Alternator

Alternators and Generators for

Toyota, click here

Mitsubishi, click here

Honda, click here

Suzuki, click here

Trucks and SUVs, click here

Thank you for reading this short post and I hope it enlightened and helped you. If you deem this article can be beneficial to others please share it using the share buttons. In doing so you help me improve this site to be a home for everyone.



Synthetic Oil Change

When we say synthetic oil change, we mean the regular interval of changing engine oil with synthetic oil.

What is synthetic oil?

Synthetic oil is man-made, not natural. It is a lubricant consisting of chemical compounds that are artificially made. Synthetic lubricants can be manufactured using chemically modified petroleum components rather than whole crude oil, but can also be synthesized from other raw materials.

Synthetic Oils-What does the company say about their products

  • Mobil 1 Says


Keeps your engine running like new

Mobil 1 advanced full synthetic motor oils deliver exceptional performance and protection for vehicles of all ages and for all driving conditions – normal to extreme.

Mobil 1 oils keep engines running like new by helping:

  • Combat sludge and deposit buildup
  • Reduce wear
  • Control oil breakdown

Mobil 1 motor oils offer a full range of temperature protection: For cold starts, the oil keeps flowing as low as -40 degrees Fahrenheit, and it can withstand high temperatures of up to 500 degrees Fahrenheit.

In fact, Mobil 1 is the World’s Leading Synthetic motor oil brand, recommended by more car builders and used by more NASCAR® teams than any other brand of motor oil. What’s more, Mobil 1 oils meet or exceed the toughest standards of Japanese, European and U.S. car builders.

Mobil 1 120764 Synthetic Motor Oil 5W-30


  • Pennzoil Says

Synthetic Oil Change-Pennzoil


PurePlus Technology is our patented, revolutionary gas-to-liquid process which converts natural gas into a first-of-its-kind, high quality full synthetic base oil. Because our base oil is made from natural gas, it is clear with fewer of the impurities found in crude oil, the start for many other traditional and synthetic motor oils. To that pure, clear base we add our high-performance additives to create Pennzoil Platinum with PurePlus Technology full synthetic oil designed for complete engine protection, without compromise.

Pennzoil Platinum Full Synthetic motor oil with PurePlus Technology keeps pistons up to 30% cleaner than required by the toughest industry standard and keeps your engine cleaner than any leading synthetic oil.

  1. Shell ROTELLA Full Synthetic Diesel Engine Oil. …
  2. Royal Purple High-Performance Synthetic Motor Oil.
  3. Top 1

Pennzoil 550038221 Platinum 5W-30 Full Synthetic Motor Oil


  • Valvoline Says

Synthetic Oil Change-Valvoline

Valvoline Advanced Full Synthetic Motor Oil delivers superior engine protection by fighting the three major causes of engine stress: heat, deposits, and wear.  That’s because it is the only leading full synthetic formulated with more durable anti-wear additives that stay in the oil longer.  When you want to keep your engine running its best, choose the ultimate protection found in Valvoline Advanced Full Synthetic Motor Oil.

Valvoline 0W-20 SynPower Full Synthetic Motor Oil-5qt (813460) 


  • Shell Rotella Says

Synthetic Oil Change-Rotella

Better Fuel Economy

Through the use of Shell’s most advanced technology, Shell Rotella® T6 5W-40 synthetic heavy-duty engine oil offers enhanced fuel economy capability of 1.5%* that can save money in fuel consumption, without compromising engine protection or durability. *Compared to 15W-40 oils.

Improved Wear Performance

Shell Rotella® T6 5W-40 full synthetic provides a significantly increased level of protection against harmful engine wear when compared to previous generation API CJ-4 synthetic engine oils.

Improved Deposit Control

The advanced multi-functional dispersant additives in combination with synthetic base oils provide an enhanced level of protection against the effects of soot, dirt and other contaminants in heavy-duty diesel engines.

Improved Heat Resistance

Shell Rotella® T6 full synthetic heavy-duty engine oil resists breakdown by heat to provide continuous protection throughout the service interval.

Emissions System Compatibility

The advanced low-ash formulation helps control the blocking of or poisoning of exhaust after-treatment devices, helping maintain vehicle emission compliance and diesel engine fuel efficiency.

Outstanding Shear Stability

Shell Rotella® T6 full synthetic heavy-duty engine oil resists viscosity loss through shear and will maintain optimal pressure in your heavy-duty diesel engine.

Learn more about Shell Rotella T6 Full Synthetic Oil:

  • SAE 0W-40
  • SAE 5W-40
  • SAE 15W-40



How Often do we Change with Synthetic Oil?

Advantage Using Synthetic oil-Toyota L Engine


The regularity of changing oil is based on driving conditions:

    • Weather conditions-Summertime, winter season, and rainy seasons.
    • Road conditions-Off-road or difficult terrain
    • Load conditions-Heavy loading and light loading
    • Driving distance-Far or near
    • Vehicle used-is it an old one or a modern one. Is it a conditioned one or with issues like dissipation of oil?

The shortest time interval is 3,000 miles, and next is 7,500-10,000 miles and the maximum should not exceed more than 10,000 to 15,000 miles.

Why Do We Use Synthetic Oil?

First, because synthetic oil is purified, the impurities that are harmful to engines are removed. 

Second, because synthetic oil is purified, naturally it will last longer, it works longer than the conventional oil.

Oils are engine coolants and they should serve the purpose properly. If they don’t your engine will overheat and when overheating occurs regularly on your engine the head gasket will be deformed, burned and cannot seal the engine oil. The result will be an oil leak from the engine. If you are not aware of it that your engine lacks oil and you drive it and when you are in a location where you cannot buy oil and you drive your car until you can buy somewhere the damage might be severe and you will incur many expenses.

Why? Not only the head gasket was burned, but the piston rings might also be broken. Or, the crankshaft might be broken too. Those are the parts that can be in danger and are easily damaged when the engine overheats for a certain time.

Thus, engine oil is very important that it should always be maintained and synthetic oils will do longer when it comes to the protection of your engine parts. Not only that it will maintain your pocket.


Click this and join the Eckler’s Automotive Affiliate Program



Star Lock Washer

This tiny thing called star lock washer holds an important function in the security and safety of the driver and riders. It controls and stabilizes the movement of the spindle axle nut in order not to loosen and the roller bearing will not move wildly.

I am sharing my experience related to this one simple but important thing. When it was my first time to see and noticed this was about five years ago. I thought it’s a simple and useless thing.

It was when I felt that there is something abnormal in the movement of wheels. I know nothing about symptoms of bad bearings but I thought it would be something good to inspect your car when you suspect there is an abnormality.

So what I did is jacked up the front right wheels and tried to move it if it’s firm and secured. This way I’ve seen that the bearings were loose because I suspect that they are already bad so I took off the wheel, the star lock washer, the nut, the flat washer, and the bearings.

Star Lock Washer-bearings

Roller bearing

You may need bearings, go here

I’m certain that the bearings have to be replaced so I went to the auto supply center to buy a new one. I’m back and I have to assemble everything. I replaced the roller bearings, tightened the nut, placed another washer next to the nut rather than the star lock washer.

Defective Star Lock Washer

The reason why I did not use the star lock washer is that it’s already defective. So I just tightened the nut and inserted the cotter pin.

Star Lock Washer-Cotter Pin

Cotter pin


So this how it looks without the cotter pin.


The Result without the Star Lock Washer

Every after driving I have to inspect it. I always observe that the nut is loosened and I have to retighten so I thought of putting a washer with a thickness just enough between the nut and the cotter pin.

In doing so, we used the vehicle going to an affair of about 15 kilometers away from where I stay. And you know what happened? As the wheels turned the roller bearings moved and so with the spindle nut that got so tight and caused friction and it got so hot and melted the spindle thread and the bearings had wildly and freely moved and the wheel is no longer in the proper position. We left the car and rode on a tricycle to the occasion we are attending to.

After the occasion, we rode back but before reaching home the group went ahead and I slowly drove my car to my garage. The damage is severe and I’m worried where will I buy that spindle axle since it is an old model and it’s difficult to find a replacement.

The good thing is that as technology advances and inventions advances also there are technological remedies too for those who cannot cope up with the advancements. There is what we call a lathing machine which can be equally reliable.

So what you can see in the image below is a rebuild of the spindle axle.  The thread was restored but the same nut is used.


Now, I know I have to bring back the missing one, and that is the star lock washer. I have to look for the replacement of that very important part though tiny it is and is seemingly unimportant, the experience is the proof that it does an indispensable role in the safety of the whole vehicle and all that is there inside.




Since I have replaced that star lock washer I haven’t had a problem or an issue with the bearings and the nut. Everything works fine and I’m secured and have peace in mind.

Please watch the short video on how the star lock washer looks so simplistic but holds an irreversible role in the journey of everyone who boards the car.


Thank you for reading and following my story.  I hope it helped and inspired you as well as you have learned something is valuable when it comes to your relationship with your own car.

Please leave a comment and I do wish you will find the joy in sharing this to your friends.

Do you need a Star Lock Washer? Click here



Rear Axle Seal Replacement

Rear Axle Seal Replacement

The facts

  1. The brake drum is wet with oil

  2. Brake lining is also wet with oil

  3. Brake fluid has no indication of leaking anywhere

  4. There are two oil seals in the rear axle, the inner oil seal and the outer rubber seal.


The video will show you the axle hub and outside and the inside or back of the brake disk.

I. Replacing the inner Oil Seal

Rear Axle Seal Replacement-brake drum

Wet Brake Drum


Rear Axle Seal Replacement-brake lining

Wet Brake Lining


Rear Axle Seal Replacement-brake system

No leak on the Motor Vehicle Wheel Cylinder

Rear Axle Seal Replacement-brake master assembly

Brake master assembly-no dissipation

The First Time

I noticed that the brake drum has been wet with oil. I have to see what’s really making this little thing. I detached the wheel and detached the brake drum. I was wondering why the inner part of the brake drum and the brake lining were totally wet with something like grease. But I don’t see leaks from the motor vehicle wheel cylinder and no dissipation from the brake master assembly. So what I did is wash everything and assembled it back and continued to use to vehicle.


The Second Time

They say, history repeats itself and it is true. I saw again that the brake drum was wet.  This time I have in mind what is possible since I disregarded the possibility that it’s from the brake system.


I removed the wheel, detached the brake drum, detached the brake lining and also the axle. I removed the oil seal and replaced it with a new one.



Rear Axle Seal Replacement-axle casing

Rear Axle Casing


Rear Axle Seal Replacement-axle oil seals

Rear Axle Oil Seals


Now, to test this and prove that what I did is the right thing, I will be fetching the young people from the Summer Camp in San Pablo City.  That is around 60 kilometers away from my place. So I will be running at 120 kilometers to and from.

To see this I will be giving an update tomorrow afternoon when I come back with eleven young people from the camp.


II. Replacing the Outer Rubber Seal

I promised to give you an update on what it took when I test the vehicle and see if what I did is the solution to the problem.

When I got home I did not bother to examine the thing until the following week. It seems the issue is lurking and I have to check it.

For the third time, I want to be sure if the issue has been resolved or is still lurking. Again, I removed one by one the parts and I saw that the brake linings and brake drum were wet with oil again.


Rear Axle Seal Replacement-brake drum

Brake Drum


In the rear axle hub, there are two oil seals and these are the images:

Rear Axle Seal Replacement-axle oil seal

Rear axle oil seal


Rear Axle Seal Replacement-Rear Axle outer rubber seal

The Rear axle outer rubber seal



1. This first seal is placed here:

That oil seal is placed in the axle casing so it will fit in between that axle casing and the axle main bearing.

Rear Axle Seal Replacement-axle main bearing

Rear Axle Shaft and Bearing


Rear Axle Seal Replacement-axle casing

Rear Axle Casing


When the seal is replaced and the axle shaft is put back to its place it will look like the image below. You can see the nuts and bolts tightened together to hold the axle casing and the axle hub.


Rear Axle Seal Replacement-brake disc fastened to the axle casing


2. And this outer rubber seal is placed here:

Now, as you can see above the first oil seal, in other words, the inner axle oil seal is replaced already and when you assemble it, that’s how it looks.

For this time let’s replace the outer rubber seal which is the second seal in the axle assembly. But don’t be confused this must be done first before the whole axle assembly is placed back to the axle casing. We have just illustrated how and where the inner seal is to be.

The outer rubber seal is placed in between the axle hub and the brake disc. This will seal oil that may come out or slipt out of the axle main bearing.

If this outer rubber seal is installed it’s now time to assemble back the axle together with the brake disc where the axle main bearing is attached.




Rear Axle Seal Replacement-Axle with brake disc

Axle with Brake Disc


After it has been assembled it will look like the image below. It’s just a small part of the outer rubber seal is being exposed fitly in between the axle hub and the brake disc.


Rear Axle Seal Replacement-Axle hub and brake disc

Axle Hub and Brake Disk with new outer rubber seal

Concluding words

What we’re trying to solve are the facts below:

  1. The brake drum is wet with oil
  2. Brake lining is also wet with oil
  3. Brake fluid has no indication of leaking anywhere

We have tried our best to solve for the first time by replacing the inner axle oil seal but we did not succeed. Nevertheless, I am happy that it was replaced because I know its time has come and we have to shoot two birds in one stone.

We have come to our sense that oil leakage is on the brake disc, the brake lining, brake drum but it does not come from the motor vehicle wheel cylinder. However, the oil leakage is on the outer side of the brake disc not in the inner side.

If it’s in the inner side and the problem is the inner oil seal it should show some signs in the image below. Don’t worry what you can see now is not a leakage but a spill when I adjusted the brake.


We have discovered the fact that the outer rubber seal has been the culprit why the problem has been lurking after we have done all other things.

After we have replaced that outer rubber seal, now, we have the peace of mind and safer and better driving with the dry brake drum, dry brake lining.


Rear Axle Seal Replacement-brake system


Thank you for reading and please give your comments on the comment box below and I’ll be happy to get back to you and respond to the discussion.


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