DIY - Myvi Brake Shoe Replacement

cvkit17

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cvkit17

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Hi All :wavey:

I'm gonna post my DIY brake shoe change on my Myvi. Most of us know that brake shoes last very long, almost the lifespan of the car in some cases. Therefore we do not see many people changing the brake shoe. However, because myvi brakes suck, I thought of getting a better brand, at least at my perspective.

Story: This is my first DIY brake shoe change. I have done disc brake pad replacement which is fairly simple and easy but not brake shoe replacement. Thus before I started I actually went through some websites and videos to enrich my knowledge and courage (brakes man..screw up and I might die:stupid:). Although with some knowledge on how to do it, I still did not have the courage to do so. Therefore after having deeper thoughts, I decided to let the mechanic to do it (my friend, more than 10 years experience) and I watch and learn.

So I went to him and told him that I would like to change the brake shoes. He told me that it will take 1-2 hours at least. He then asked his junior to do it since he is already a senior and he continue to work on the car he was on. After around 40 minutes the junior managed to replace the old shoes with new one, with a lot of brute force. I shall tell you why later. Everything seemed perfect but when he wanted to put the cover back, it didnt fit. So after another 30 minutes he gave up and asked my friend to have a look. They both troubleshot the problem but was fruitless. Seeing them encountering trouble, I asked the junior if the adjuster is adjusted correctly or not and he answered yes, it is at the minimum expand setting. Since my friend had also looked at it so I trusted them and didnt question further. In the end my friend said that the new brake shoes are not identical and it cannot fit. They put back the original shoes and everything was fine. My mind wasnt thinking right at that time and I also thought that what he claimed is true so I paid him 20 bucks and left.

Feeling disappointed and dissatisfied, the question why the brake shoes didnt fit kept playing in my mind because I believe that the dissimilar between the original and the new shoe will not cause this problem. So I took the tools out and start DIY-ing !

1. This is the new brake shoe that I bought. Bendix Standard Bonded Brake Shoe.


2. The new brake shoe looks like this


3. Side by side comparison. Not much differences can be seen here.


4. You can see it clearly in this picture what is the difference. The bendix friction pad is actually longer (at both ends) than the original. This could result in more bite. AND THIS IS THE REASON THE MECHANIC GAVE ON WHY THE COVER CANT BE CLOSED!


5. So lets start the fun part! Jack up the car, put jack stand to support the car, and remove the wheels. After that just give the drum some soft knocks with a hammer and mallet. If you still cannot remove it, just put two screws at the screw hole and push the cover out.


6. Before we start on dissembling stuffs, lets take some pictures so that we will not forget how it should be assembled. In this picture we can see the adjuster. All drum brakes of any car brand have this. It is to self adjust when the pads get thinner.


7. More pictures


8. More and more pictures


9. Now lets start dismantling em. We can start by removing the springs first or removing the spring clamp first. I removed the spring clamp first in this case. With a pliers, just push and clamp on the stem and turn. See the metal clip? It is one of the hardest thing to remove. Do it when we have the shoes out from the drum.


10. This is how the spring clamp looks like


11. Remove the springs as well...


12. Next is removing the handbrake cable from the shoe hook. Slide the spring in and pull out the cable. FYI, the spring is freaking stiff.


13. Now transfer all the accessories to the new brake shoe and we are good to assemble it back. The accessories and secured onto the shoes with the metal clip I have shown earlier.


14. Put everything back in slow and nice. Remember to reset the adjuster!




Once everything was back on I tested the car slowly and carefully. First test the handbrakes, if the handbrakes is working that means the handbrake cables are correctly installed. Secondly is braking. I started with just releasing the clutch to go at slow speed and then brake, for a good 10 times. The only start driving at 20-30kmh and braked steadily and slowly. Then increase the speed to 60kmh and repeat the braking. So far so good :biggrin: :biggrin: Bear in mind that the brakes are still new and need to bed in. Do not attempt hard braking instantly after installing. Let it bed in first.

Hope you enjoy this post. And oh ya, fuck the mechanic. Noob! :mad: :thefinger:
 

ken yeang

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ken yeang

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Good DIY for manly man....
Did you clean up the dirt/dust collected in the drum during the replacement of the shoes?
 

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I don't understand what the mech did differently that made it not fit
 

vr2turbo

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Good DIY for manly man....
Did you clean up the dirt/dust collected in the drum during the replacement of the shoes?
I think already cleaned by the mechanic during first round.....hhahahhaha:rofl:

---------- Post added at 02:39 PM ---------- 6 hour anti-bump limit - Previous post was at 02:37 PM ----------

I don't understand what the mech did differently that made it not fit
Yah! wonder why? He apps me and I said main thing is the adjuster screw and he say mechanic did it already still cannot, therefore I think mechanic did not do enough...:smokin:
 

cvkit17

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cvkit17

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Very nice DIY done by you mate.

Any significant improvement on the braking? Do share with us later on.
Thanks! So far the brake feels spongier but the bite is like original. Will update this thread when i have bed in the shoes

Good DIY for manly man....
Did you clean up the dirt/dust collected in the drum during the replacement of the shoes?
Thank you man...I used a microfiber buruk and wipe the side wall of the drum and mildly clean the other parts as I did not have a can of brake cleaner in hand. After bedding in maybe I will open the cover and spray brake cleaner :biggrin:

I don't understand what the mech did differently that made it not fit
Thats because the noob didnt reset the adjuster. You look at Picture No.6, the tip of both rack gears shall be at least aligned. What he did was the shoes are expanded at max instead of min therefore the cover couldnt go in.
 

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Thanks! So far the brake feels spongier but the bite is like original. Will update this thread when i have bed in the shoes.
Spongier feel? Did you bleed your brake after your have change your shoe? Better you service it together since you've edi change to newer shoes.
 

cvkit17

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cvkit17

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Very nice DIY done by you mate.

Any significant improvement on the braking? Do share with us later on.
Spongier feel? Did you bleed your brake after your have change your shoe? Better you service it together since you've edi change to newer shoes.
It's only slightly spongier. Myvi brake is spongy in nature sigh
 

ken yeang

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ken yeang

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bro cvkit17.

during the pad replacement, you didnt usik the hydraulics right?......
So how could the brake feels spongier? Maybe the brake pads havent "makan" enuf to produce full contact to the inner surface with the drum...
 

cvkit17

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bro cvkit17.

during the pad replacement, you didnt usik the hydraulics right?......
So how could the brake feels spongier? Maybe the brake pads havent "makan" enuf to produce full contact to the inner surface with the drum...
Nope I did not. Spongier could be caused by the uneven surface of the new pad like you mentioned...now the brake is getting better and better but Myvi brake is spongy in nature. Hopefully it turns out good if not, $$ wasted haha

Maybe I'm ignorant or a noob.
I still don't understand why the f manufacturers don't use disc instead.
Drums are so much complicated, so many small little bits.
Drum brake is cheaper to produce has lower maintenance. For small cars drum brake can provide good enough stopping power
 

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Watch the discussion on drum brakes in light weight cars starting 5:52

[youtube]S-nBoUn-GXc[/youtube]
 

ken yeang

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ken yeang

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Maybe I'm ignorant or a noob.
I still don't understand why the f manufacturers don't use disc instead.
Drums are so much complicated, so many small little bits.

Drum brakes is lot cheaper to manufacturer. Cost (and profit) is the chief consideration to manufacturer. Attractive price tag (low price of the car) is another appeal to the majority of buyers/consumers.

For auntie-go-pasar driving and speed, drum brake is adequate...
 

vr2turbo

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Nope I did not. Spongier could be caused by the uneven surface of the new pad like you mentioned...now the brake is getting better and better but Myvi brake is spongy in nature. Hopefully it turns out good if not, $$ wasted haha



Drum brake is cheaper to produce has lower maintenance. For small cars drum brake can provide good enough stopping power
Spongy, probably need to bed it in first.....:driver:

---------- Post added at 09:02 PM ---------- 6 hour anti-bump limit - Previous post was at 09:00 PM ----------

Drum brakes is lot cheaper to manufacturer. Cost (and profit) is the chief consideration to manufacturer. Attractive price tag (low price of the car) is another appeal to the majority of buyers/consumers.

For auntie-go-pasar driving and speed, drum brake is adequate...
Actually drum brakes have better braking because of larger contact surface, but drum brakes cannot cool off fast therefore it fades faster then disc, so it is more to application....:driver:
 

ken yeang

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ideally, ABS works with 4 disk brakes to best the best result.
Drum brakes may not work for modern ABS that controls all 4 wheels of the car.

I guess that is why drum brakes are less "favoured", partly due to the safety standard or standard equipment for today's car.

Somehow, I read from internet that some old modern cars could have ABS with 2 disk brakes (front) and 2 drum brakes (rear). I might be wrong...
 

cvkit17

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Some update guys after some 50km...the brake is working well so far and has got better. Less spongy and stopping power is improving.
 

vr2turbo

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Some update guys after some 50km...the brake is working well so far and has got better. Less spongy and stopping power is improving.
Will you still go back to your mechanic? Even though was your mechanic worker who mess up, he should over see that matter actually.....:driver:
 

cvkit17

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Will you still go back to your mechanic? Even though was your mechanic worker who mess up, he should over see that matter actually.....:driver:
Well i wont claim back the 20 bucks i paid...actually i knew it first hand that their skill is not that great because last time my friend (also friend with the mechanic) repaired his kancil there and many things messed up. I have been to his place a few times to do normal servicing and minor repair which I did not encountered any problem so far so I thought changing brake shoe should be a piece of cake for them. I was damn wrong :banghead:

Maybe one day when I bump into him I might highlight this to him. But not in a way that I shall purposely go to his workshop to tell him.
 

stupidcar

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ideally, ABS works with 4 disk brakes to best the best result.
Drum brakes may not work for modern ABS that controls all 4 wheels of the car.

I guess that is why drum brakes are less "favoured", partly due to the safety standard or standard equipment for today's car.

Somehow, I read from internet that some old modern cars could have ABS with 2 disk brakes (front) and 2 drum brakes (rear). I might be wrong...
I remember Myvi is front ABS only right?

Some update guys after some 50km...the brake is working well so far and has got better. Less spongy and stopping power is improving.
Nice. Any sound/noise? The drums looked unusually white.
 

vr2turbo

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Well i wont claim back the 20 bucks i paid...actually i knew it first hand that their skill is not that great because last time my friend (also friend with the mechanic) repaired his kancil there and many things messed up. I have been to his place a few times to do normal servicing and minor repair which I did not encountered any problem so far so I thought changing brake shoe should be a piece of cake for them. I was damn wrong :banghead:

Maybe one day when I bump into him I might highlight this to him. But not in a way that I shall purposely go to his workshop to tell him.
Well, he thought was chiffon cake, but kena Christmas fruit cake, so don't know how to bake.....hhahahhahahhaa:rofl:

---------- Post added at 01:58 PM ---------- 6 hour anti-bump limit - Previous post was at 01:57 PM ----------

I remember Myvi is front ABS only right?



Nice. Any sound/noise? The drums looked unusually white.
Time to change yours, maybe can improve your braking too.....:driver:
 

cvkit17

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Well, he thought was chiffon cake, but kena Christmas fruit cake, so don't know how to bake.....hhahahhahahhaa:rofl:

---------- Post added at 01:58 PM ---------- 6 hour anti-bump limit - Previous post was at 01:57 PM ----------



Time to change yours, maybe can improve your braking too.....:driver:
Well i guess that clearly shows that they are not so experienced when it comes to servicing drum brakes
 

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Well, he thought was chiffon cake, but kena Christmas fruit cake, so don't know how to bake.....hhahahhahahhaa:rofl:

---------- Post added at 01:58 PM ---------- 6 hour anti-bump limit - Previous post was at 01:57 PM ----------



Time to change yours, maybe can improve your braking too.....:driver:
Not gonna change a thing if my brakes still gone after a corner haha