i30 Owners Club

GOT PROBLEMS OR ISSUES? => GENERAL => Topic started by: babis_xo on December 30, 2011, 02:36:54

Title: Creaking brake
Post by: babis_xo on December 30, 2011, 02:36:54
Brakes are behaving a little strange since early summer 2011.

i30_Brake_29072011067_sample2.mp4 (http://www.youtube.com/watch?v=BT8scLEgmsc#)

And before Ffoxy shows up in a hurry, suggesting the usual silicon spray :lol: I have to say that last week I was going downwards a scarp ramp with 1st gear thrown in and while touching gently the brake, I heard the same creaking noise as above but this time it lasted as long as I kept my foot steady on the pedal (3-4 sec).
Today I left my car at the dealer who doesn't have a clue. Unfortunately it will be fixed (that is, I hope) next... year.
I'm counting on a replacement car for tomorrow.
Brake master cylinder? something else?
Title: Re: Creaking brake
Post by: Dazzler on December 30, 2011, 02:40:53
That is a strange one... :undecided: Nice shoes by the way :goodjob: (I have a shoe fettish.. :-[)
Title: Re: Creaking brake
Post by: babis_xo on December 30, 2011, 02:50:35
Nice shoes by the way :goodjob: (I have a shoe fettish.. :-[)
:lol: :lol:
So, you think it's not a shoe issue :neutral:
Title: Re: Creaking brake
Post by: Dazzler on December 30, 2011, 02:51:51
Nice shoes by the way :goodjob: (I have a shoe fettish.. :-[)
:lol: :lol:
So, you think it's not a shoe issue :neutral:

Hopefully you getting it fixed easily will be a "shoe in" ... :P
Title: Re: Creaking brake
Post by: Phil №❶ on December 30, 2011, 03:20:59
babis_xo

Is your car Left or right hand drive.  :question:
Title: Re: Creaking brake
Post by: Dazzler on December 30, 2011, 03:25:14
babis_xo

Is your car Left or right hand drive.  :question:

Left hand drive (they drive on the right side of the road in Greece) Babis has gone to bed it is 5.24 am over there  :Shocked:

see here ...

http://brianlucas.ca/roadside/ (http://brianlucas.ca/roadside/)
Title: Re: Creaking brake
Post by: Phil №❶ on December 30, 2011, 03:37:17
Thanks for that. I was expecting a reply at his convenience. Anyhow, on our RHD cars there is a shaft to transmit the pedal pressure to the LHS master cylinder.  My next question was, where does the creaking appear to come from. On our cars it would be easy to identify the right side or the left as the source of the noise, but for a LHD car, pinpointing the noise is going to be more difficult. Listening to the video, it sounds like a coil return spring creak at the 2 points of contact, eg the pedal and presumably the car chassis.   :neutral:
Title: Re: Creaking brake
Post by: Dazzler on December 30, 2011, 03:55:21
You are good with this sort of thing Phil... :goodjob:
Title: Re: Creaking brake
Post by: Phil №❶ on December 30, 2011, 04:03:29
Thanks Dazz,

BTW you helicopter vid will be even more interesting with your latest family addition as well.  :lol:
Title: Re: Creaking brake
Post by: Dazzler on December 30, 2011, 04:08:54
I have a few that we did while we were at a motel over the last few days but I will do some more before I make a video...

The Kitten is pretty timid so I better not do that ... :whistler:
Title: Re: Creaking brake
Post by: rustynutz on December 30, 2011, 04:21:33
I used to swoop on my cat all the time with my helicopter, he didn't seem all that fazed and never attacked it which made him no fun at all..... :lol:
Title: Re: Creaking brake
Post by: Surferdude on December 30, 2011, 08:54:04
Nice shoes by the way :goodjob: (I have a shoe fettish.. :-[ )
:lol: :lol:
So, you think it's not a shoe issue :neutral:
Well, if it is, it's not the sole problem. :rofl: :rofl: :rofl:
Title: Re: Creaking brake
Post by: AlanHo on December 30, 2011, 09:53:08
I never cease to be amazed how quickly you guys down under can turn a thread about creaking brakes into yet another Helicopter one.

You must hover about waiting for an opportunity to rotate the subject.................. :rofl:
Title: Re: Creaking brake
Post by: babis_xo on December 30, 2011, 11:07:48
Nice shoes by the way :goodjob: (I have a shoe fettish.. :-[ )
:lol: :lol:
So, you think it's not a shoe issue :neutral:
Well, if it is, it's not the sole problem. :rofl: :rofl: :rofl:
:rofl:
I should reconsider whether is an ishoe or two
Title: Re: Creaking brake
Post by: 2i30s on December 30, 2011, 11:19:38
that popping noise sounds like the diaphragm in the brake booster.  :idea: the brake pedal on babis's car is hooked straight to the booster because its left hand drive,on a right hand drive i30 the brake pedal is hooked to the booster via a rod that runs over to the left hand side of the car,and thats where the booster and master cylinder are.
Title: Re: Creaking brake
Post by: Phil №❶ on December 30, 2011, 11:22:35
Apart from your assessment of the noise, I said the rest in #6.  :whistler:
Title: Re: Creaking brake
Post by: babis_xo on December 30, 2011, 11:25:22
They've just called. My car is ready to go as they didn't hear anything so problem does not exist  :confused:
Ok, I know about their policy but I would expected at least that they should test it properly for a couple of days.

... on our RHD cars there is a shaft to transmit the pedal pressure to the LHS master cylinder.  My next question was, where does the creaking appear to come from. On our cars it would be easy to identify the right side or the left as the source of the noise, but for a LHD car, pinpointing the noise is going to be more difficult. Listening to the video, it sounds like a coil return spring creak at the 2 points of contact, eg the pedal and presumably the car chassis.   :neutral:
that popping noise sounds like the diaphragm in the brake booster.  :idea: the brake pedal on babis's car is hooked straight to the booster because its left hand drive,on a right hand drive i30 the brake pedal is hooked to the booster via a rod that runs over to the left hand side of the car,and thats where the booster and master cylinder are.
Last time the car was in, they had eliminated the case of being a friction issue so I will point them to this "shaft". Thanks for your suggestions.
I have to go over there now. Update will come later on.
Title: Re: Creaking brake
Post by: Phil №❶ on December 30, 2011, 11:30:26
Don't bother, you don't have this shaft. Why not show them the video & see if they think it doesn't exist after they see it.  :undecided:
Title: Re: Creaking brake
Post by: Keith on December 30, 2011, 11:31:36
Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here  :P :P :P
Title: Re: Creaking brake
Post by: 2i30s on December 30, 2011, 11:51:14
Apart from your assessment of the noise, I said the rest in #6.  :whistler:
so great minds think alike.  :mrgreen:
Title: Re: Creaking brake
Post by: asathorny on December 30, 2011, 12:10:42
Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here  :P :P :P

Awe come on Ffoxy, your never gonna make a million (or another million) with that sort of remark.  Silicon spray must have some part to play  :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl:
Title: Re: Creaking brake
Post by: Keith on December 30, 2011, 12:16:45
Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.

Silicone spray lubricant is not the solution here  :P :P :P

Awe come on Ffoxy, your never gonna make a million (or another million) with that sort of remark.  Silicon spray must have some part to play  :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl: :rofl:

Pffft.... :whistler:
Title: Re: Creaking brake
Post by: eye30 on December 30, 2011, 17:14:12
babis_xo

Is your car Left or right hand drive.  :question:

Left hand drive (they drive on the right side of the road in Greece) Babis has gone to bed it is 5.24 am over there  :Shocked:


Ok here is my take on this.

I wonder whether there is a rod connected to the pedal which goes from the left side to the right side of the car then connects to the brake unit in the engine area on the right side.

This rod is catching on something which is causing the noise.

I say this as on some cars, depending on the placement of the brake unit which isn't directly behind the pedal, a connecting rod is needed to allow the pedal on the left to connect to the unit on the right.

Just an idea to check out.
Title: Re: Creaking brake
Post by: babis_xo on January 02, 2012, 13:08:30
Why not show them the video & see if they think it doesn't exist after they see it.  :undecided:
I didn't have to as we were finally able to confirm the noise. No suggestion made from them but they assured me that it's nothing serious (???) so I picked up the car (after I put them to write down "brakes checked, no problem found" on the service receipt :wink: They told me to bring the car in again tomorrow.
Title: Re: Creaking brake
Post by: babis_xo on January 02, 2012, 13:31:55
I wonder whether there is a rod connected to the pedal which goes from the left side to the right side of the car then connects to the brake unit in the engine area on the right side.

This rod is catching on something which is causing the noise.

I say this as on some cars, depending on the placement of the brake unit which isn't directly behind the pedal, a connecting rod is needed to allow the pedal on the left to connect to the unit on the right.

Just an idea to check out.
Douze point /2. There is a rod.

Assuming the brake fluid level is correct, & also assuming the brakes have no other defect in operation, if the noise is constant even when the braking foot is not moving, I'd suspect a brake servo issue.
Another douze point /2 :D

A dealer's mechanic suggested unofficially that the noise is caused by the rod or the servo (I also believe the second)

Silicone spray lubricant is not the solution here  :P :P :P
They told me that they did a lubricant spraying on the pedal :rofl:
Title: Re: Creaking brake
Post by: babis_xo on April 21, 2012, 17:44:14
Brake pedal has developed one more, related to the 1st but even worst sound :mad:

i30_Brake_12012012099_sample1_Jan-2012 (http://www.youtube.com/watch?v=FhbJ56FEVS8#)

Since my dealer had no clue (besides he wouldn't admit this noise is a problem at all), I decided to visit another dealer just before Easter.
They replaced the stop-light button behind the pedal but noise reappeared 10min later (besides it happens after a while when driving in town, esp. in hot weather)

It drives me sooo crazy that I don't want to use the brake anymore... +
Title: Re: Creaking brake
Post by: Dazzler on April 21, 2012, 22:41:19
How annoying Babis .. It sounds like one of your side mirrors has broken off and is dangling by a wire  :eek: (have you checked this)  :lol:
Title: Re: Creaking brake
Post by: Phil №❶ on April 22, 2012, 10:27:35
2 things to check.

Can you have someone listen inside the engine bay at the brake booster, to see if the creak is there.

also check / lubricate the pivot point of the brake pedal and the return spring particularly where it contacts the brake pedal and the body of the car.  :neutral:
Title: Re: Creaking brake
Post by: Shambles on April 22, 2012, 10:32:10
Sounded like a spring to me
Title: Re: Creaking brake
Post by: Dazzler on April 22, 2012, 10:43:36
Sounded like a spring to me

I don't think it is that .. Babis hasn't had a spring in his step for a while  :whistler:
Title: Re: Creaking brake
Post by: babis_xo on April 23, 2012, 10:29:45
Done the lubrication thing a 1000 times.
They also can't be sure about the source of the sound (I can't either). Engine noise doesn't help.
The brake-booster was once mentioned, but I think they are just waiting for the waranty to expire... :evil:
One thing that seems odd enough (and I didn't mention so you don't think that I'm crazy) is that, every time I stop near a motorbike (those ones with 1-cylinder and 600+cc) brake pedal is trembling faintly to the rythm of the... bass :wacko: Thankfully, there aren't many Harleys on our roads.
Title: Re: Creaking brake
Post by: rustynutz on April 23, 2012, 13:02:40
One thing that seems odd enough (and I didn't mention so you don't think that I'm crazy) is that, every time I stop near a motorbike (those ones with 1-cylinder and 600+cc) brake pedal is trembling faintly to the rythm of the... bass :wacko: Thankfully, there aren't many Harleys on our roads.

Especially one cylinder Harleys.... :p
Title: Re: Creaking brake
Post by: 2i30s on April 23, 2012, 13:33:43
One thing that seems odd enough (and I didn't mention so you don't think that I'm crazy) is that, every time I stop near a motorbike (those ones with 1-cylinder and 600+cc) brake pedal is trembling faintly to the rythm of the... bass :wacko: Thankfully, there aren't many Harleys on our roads.

Especially one cylinder Harleys.... :p
what,1912.  :Shocked: :lol:
Title: Re: Creaking brake
Post by: babis_xo on April 24, 2012, 21:53:35
I don't know much about motorbikes  :-[
Title: Re: Creaking brake
Post by: rustynutz on April 25, 2012, 06:36:47
Don't mind us, Babis, we are just teasing... :D
Title: Re: Creaking brake
Post by: babis_xo on April 26, 2012, 00:09:34
Just remembered this brake test I've done 9 months ago, just after the strange noise appeared (the green words by me)

(http://i949.photobucket.com/albums/ad338/babis_xo/i30/brakes_test_IMG_1174.jpg)

Seems that brake perfomance (60%) just exceeds the min. requirements (55%).
Front axis brake power is 1680 N, a narrow performance IMO comparing to the rear axis brake power (which is BTW uneven with 2080 N Left and 2120 N Right).
Handbrake is already fixed (at least so I think).

Numbers confirmed the strange feeling I had when braking. I can't say if it is due to time wear, but I'm pretty sure that it came up along with the creaking noise and the vibrating (on idle) pedal when a single-cylinder XT-600 passes by :confused:
Dealer does not consider the brake perfomance and the creaking brake as related and since numbers are typically OK, I can't claim anything.   

- Has anybody done a brake test?
- What is the normal (not minimum) figures for a car with only 18.000 kms on clock? disks /pads were in perfect condition by the test time (I always slow down using the gearbox)
- Is it ok that the rear axis is braking with 20% more power than the front one? As I've said before I don't drive a motorbike but I think that braking /locking the rear wheel is strictly forbidden.
- Is the uneven braking on one axis normal for a car with ESP? or it is uneven just because of that?
- Should I expect a further deterioration as kms are added on the clock? Although today, after 8.000 kms, nothing has changed.
- What was the real name of Marilyn Monroe?

The first who answers, wins an all-inclusive trip for two :p
Title: Re: Creaking brake
Post by: Dazzler on April 26, 2012, 08:14:42
O/K I'm the first to answer (so where are we going?)

BTW.. I have no idea of the answer to your question :whistler:
Title: Re: Creaking brake
Post by: Doggie 1 on April 26, 2012, 09:47:29
I'm a bit  :confused:
Title: Re: Creaking brake
Post by: Phil №❶ on April 26, 2012, 09:54:00
Dunno about the brakes. I guess if they stop ok then that's all that matters.

Marylin Monroe's name was Norma Jeane Mortensen Baker BTW

No prize, Dazz beat me to it.
if it's to Panorama on a donkey, he's welcome to it  :lol: :mrgreen:
Title: Re: Creaking brake
Post by: babis_xo on April 26, 2012, 13:10:42
O/K I'm the first to answer (so where are we going?)
...Panorama on a donkey  :lol: :mrgreen:
... :rofl:


Dunno about the brakes... Marylin Monroe's name was Norma Jeane Mortensen Baker BTW
:judges: :clapping:
Title: Re: Creaking brake
Post by: babis_xo on April 28, 2012, 02:43:10
- Has anybody done a brake test?

C'mon, nobody has?
a "MOT" test maybe?
an obligatory one?
 :rolleyes:
Title: Re: Creaking brake
Post by: Dazzler on April 28, 2012, 03:53:42
I can't remember anyone mentioning it Babis  :disapp: (maybe someone will spot this that can help) :confused:
Title: Re: Creaking brake
Post by: rustynutz on April 28, 2012, 04:45:04
I performed a brake test yesterday.....and they worked.  :D
Title: Re: Creaking brake
Post by: 2i30s on April 28, 2012, 05:02:38
I performed a brake test yesterday.....and they worked.  :D
twice in 3 years they've saved my front end.  :mrgreen:  they work great.  :goodjob:
Title: Re: Creaking brake
Post by: babis_xo on April 28, 2012, 16:50:03
I performed a brake test yesterday.....and they worked.  :D
twice in 3 years they've saved my front end.  :mrgreen:  they work great.  :goodjob:
Ok, but I would be obliged if you two, had a Newton force-meter attached to your right foot as well :lol:


In Greece (and everywhere else as far as I know), every two years we have to take a safety test (MOT). The brakes are tested too and the results (N) are printed on a paper :p
Anyway, that's what I'm looking for :foottap:
Title: Re: Creaking brake
Post by: Dazzler on April 28, 2012, 23:19:49
In Greece (and everywhere else as far as I know), every two years we have to take a safety test (MOT). The brakes are tested too and the results (N) are printed on a paper :p

No such tests required in Tassie (I think it is 3 years in some "North Island States" :whistler:
Title: Re: Creaking brake
Post by: Doggie 1 on April 29, 2012, 01:16:57
In Greece (and everywhere else as far as I know), every two years we have to take a safety test (MOT). The brakes are tested too and the results (N) are printed on a paper :p

No such tests required in Tassie (I think it is 3 years in some "North Island States" :whistler:

No such rules in the wild, wild west.  :)
Title: Re: Creaking brake
Post by: 2i30s on April 29, 2012, 01:38:42
i know that if you get a road worthy certificate done on an older car i Victoria a braking test is part of the road worthy test.  :winker:  but this is only done on a vehicle being registered from scratch,not re registered.  :wacko:
Title: Re: Creaking brake
Post by: babis_xo on April 30, 2012, 21:53:56
but this is only done on a vehicle being registered from scratch,not re registered.  :wacko:

*scratch...scratch...* my head that is... :confused:
Title: Re: Creaking brake
Post by: Dazzler on April 30, 2012, 22:27:23
but this is only done on a vehicle being registered from scratch,not re registered.  :wacko:

*scratch...scratch...* my head that is... :confused:

By "scratch" Steve means the first time it is registered... :winker:
Title: Re: Creaking brake
Post by: babis_xo on April 30, 2012, 22:49:19
Thanks Daz but  this time I was scratching my head, unable to believe the strange rule :lol:
Title: Re: Creaking brake
Post by: rustynutz on May 01, 2012, 04:41:45
Thanks Daz but  this time I was scratching my head, unable to believe the strange rule :lol:

Just further on that comment from 2i30s....if you buy a secondhand car (in Victoria), it also requires a roadworthy certificate before you can register it in your name... :)
In Tasmania you don't...is that still correct, Daz?  :undecided:

Title: Re: Creaking brake
Post by: Doggie 1 on May 01, 2012, 09:03:51
And also, if you register a car in Tasmania you have to provide a certificate to prove that you've taken at least one horse & carriage off the road, otherwise they hit you with FGT
(Flatulence Gas Tax) to compensate for your horse's emissions.
They're doing well down there and catching up quite quickly now.  :lol:
Title: Re: Creaking brake
Post by: Dazzler on May 01, 2012, 13:04:59
Thanks Daz but  this time I was scratching my head, unable to believe the strange rule :lol:

Just further on that comment from 2i30s....if you buy a secondhand car (in Victoria), it also requires a roadworthy certificate before you can register it in your name... :)
In Tasmania you don't...is that still correct, Daz?  :undecided:

Yep, that is correct  :goodjob:
Title: Re: Creaking brake
Post by: babis_xo on May 02, 2012, 20:09:32
Thanks Daz but  this time I was scratching my head, unable to believe the strange rule :lol:

Just further on that comment from 2i30s....if you buy a secondhand car (in Victoria), it also requires a roadworthy certificate before you can register it in your name... :)
In Tasmania you don't...is that still correct, Daz?  :undecided:

Yep, that is correct  :goodjob:

So each territory has its own rules? Very confusing :confused:
Title: Re: Creaking brake
Post by: Lakes on May 04, 2012, 21:12:29
Hey Babis, sorry about your issue, i'm deaf so would not worry me at all :rofl:. but if it was a safty issue i would feel it. my advice is louder sound system or better sound proofing in the floor.
cheers
ps did you put your best shoes on for the video? :rofl:
Title: Re: Creaking brake
Post by: babis_xo on May 08, 2012, 13:23:37

ps did you put your best shoes on for the video? :rofl:
:rofl: oh yes, it's the well known ishoes that I have
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