| jamchen |
as stated in the subject, just brought my MDX for its 40,000km service alone with rear diff and ATF change... i also told them about vibration and pulsation i feel when apply brakes when driving in heavy traffic with stop n go...
and guess what! they told me when i picked up my car that all 4 discs needed replacing... i am like:eek: yo serious? they said there are lines on all over the discs that they reckon are cracked...:rolleyes: i told them i've de-glazed those rotors due to the problem explained above and after de-glazed the problem was gone and just picking back up....
however they suggest that they reckon its definitely a concern and are going to perform warrenty repair by replacing all 4 discs(fingures crossed... i hope they don't turn at the very last second say they are gonna charge me)....i am soo shocked... coz i've been driving on those (supposed cracked discs) for near a year:eek:
however was very pleased with the service rep for his full resposibility:)
so,,, will de-glaze on discs cause discs crackings? or it would be just a general defective material? |
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| eurohazard |
| Please explain your "de-glazing" process.... |
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| NCHeel |
| "Deglazing" doesn't involve a 5-pound hammer does it? :D |
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| hondacuraworld |
| In sixteen years in the automotive parts biz, I have never seen a cracked rotor. |
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| G. COLTON |
I think that some mechanic just does not know what he/she is doing or the dealer wants some warranty money.
G |
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| jamchen |
sorry guys for the late reply...
and i should've explain the situation more...
about de-glazing.. i am not sure if its the right word... but it is when i brought my MDX to local brakes shop and they said they can "rough" the rotors try to reduce the vibration/pulsation i have coz they think its dusts on pads that is causing it...
so they leave fine linese on all teh pads...
however the problem was gone to few weeks and it starts to come back.. so when i got my car services 2 days ago i mentioned to them coz i am worry about i have the warped rotors.. and funny that when i picked the car the service rep. told me those rotors are cracked! so i am confuse now which to believe... but very please with my service rep. coz he automatically warrenty repair to change all affected rotors...:2: |
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| master_tech |
I'm glad the shop took care of you and replaced the rotors and pads @ no $$$.
Brake pulsation is caused by brake rotors having excessive runout . What causes this? Using an impact gun to tighten the lug nuts and not torquing down the lug nuts to specs, overheating the brakes which can cause heat cracks (fine lines) to the pads and or rotors.
The solution definitely would be to replace the pads and rotors. |
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| G. COLTON |
What kind of pad material is it that can crack???
G |
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| master_tech |
quote:
Originally posted by G. COLTON
What kind of pad material is it that can crack???
G
organic or the semi metallic pads like the ones on our X's G! :) |
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| hondacuraworld |
quote:
Originally posted by G. COLTON
What kind of pad material is it that can crack???
G
Standard brake pads are actually made from asbestos, cashew resin (yes the nut :) ), and chopped up steel wool. |
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| G. COLTON |
quote:
Originally posted by hondacuraworld
Standard brake pads are actually made from asbestos, cashew resin (yes the nut :) ), and chopped up steel wool.
Doesn't sound to me like that kind of material would "crack."
G |
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| dmz |
quote:
Originally posted by hondacuraworld
In sixteen years in the automotive parts biz, I have never seen a cracked rotor.
Here you go:
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| crmsnidol |
| Holy Schnikeys! |
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| DaleB |
| I think you are lucky they are replacing them after you told them you did something to them. |
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| nightguy |
| I don't get it. I changed the rear pads and rotors on one of my other cars today and had a hard time getting the rear rotors off the hub. They are the smaller diameter and are essentially disposable. I beat on them offand on for about 20 minutes with a hammer and they were barely nicked. My neighbor brought his torch over to heat them slightly and they finally came off. I can't imagine what it would take to crack one. Even tight lug nuts seem like an impossiblity. |
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| hammermdx |
quote:
Originally posted by eurohazard
http://images.google.com/imgres?img...hl%3Den%26lr%3D here is a link where the "cracked rotors" came from. This should explain it better!
Wow, how did you find that link :2: .....I still don't understand how jamchen got the dealer to replace these until warranty as something sounds fishy to me! |
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| jamchen |
quote:
Originally posted by hammermdx
Wow, how did you find that link :2: .....I still don't understand how jamchen got the dealer to replace these until warranty as something sounds fish to me!
well, be honest, i was actually the one who shocked the most:2:
however rang Honda Australia today to find out what they said about these rotors...
they simply said that i am just unlucky coz these rotors were defected...:confused:
or maybe its just the dealer wanna make some money out of the warrenty repairs! who knows...
coz these old rotors with SUPPOSED cracks looked like fine lines to me... because the pulsation is still there but on ocassionaly... |
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| G. COLTON |
When you go racing you expect to have problems that us mere street drivers do not have. Those cracks would be rather hard on the pads. Probably shave a little material off.
G |
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| dmz |
What's probably holding the rotor are the parking brake shoes. Make sure you have your parking brakes disengaged. In some cases you need to loosen up the tension screw for the parking brake.
quote:
Originally posted by nightguy
I don't get it. I changed the rear pads and rotors on one of my other cars today and had a hard time getting the rear rotors off the hub. They are the smaller diameter and are essentially disposable. I beat on them offand on for about 20 minutes with a hammer and they were barely nicked. My neighbor brought his torch over to heat them slightly and they finally came off. I can't imagine what it would take to crack one. Even tight lug nuts seem like an impossiblity.
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| nightguy |
quote:
Originally posted by dmz
What's probably holding the rotor are the parking brake shoes. Make sure you have your parking brakes disengaged. In some cases you need to loosen up the tension screw for the parking brake.
Nah, there are no separate pb shoes. The caliper assembly was completely off. The discs just kind of fused themselves to the hubs, possibly because the pads were overheating them. There was almost nothing left of them between the wear and rust on the back. |
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