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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » massive wobble under braking.. » Post Reply
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davegreen |
posted on 16th Jul 12 at 06:15 |
it is posible to distort brake discs! usuall on old or cheap discs and in bad wet weather, discs get very hot and when driving in wet weather the sudden hot cold cycles can cause the vent fins between the braking surfaces to crack causing the disc to warp. some discs can even be warped during manufacture but this is very rare and usuall because of poor machining so not realy warped but off center. this sometimes doesnt show up till the first time you brake hard. i would guess you have some assembly issue or as previously posted pad deposists. could even be worn ball joints, bushes, ect. | |
Corsa_Sport21 |
posted on 15th Jul 12 at 23:39 |
By the time cast iron is even close enough to warp, it will more than likely be at melting point. No chance of getting them close to that temperature in a car either. And even if you do, other things will have let go long before it. | |
Brederin |
posted on 15th Jul 12 at 23:33 |
May sound silly but make sure you run spigot rings, had a mate that had wobble and next minute he had a massive crash, other than that it's probably warped discs :) | |
Steve |
posted on 15th Jul 12 at 23:31 |
Glad you agree, better than rolling in here without a first clue with a cocky retort then looking an arse | |
dragon2309 |
posted on 15th Jul 12 at 23:29 |
no such things as warped discs? Lmao, yeh ok. | |
Steve |
posted on 15th Jul 12 at 23:28 |
quote: Internet huh? http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths | |
Corsa_Sport21 |
posted on 15th Jul 12 at 23:11 |
quote: Probably still pad deposits, as you can't actually see it as pad deposits. Gives off the same symptoms as something thats warped. | |
vince93 |
posted on 15th Jul 12 at 23:09 |
quote: Cheers mate, ill try this tomorrow and get back to you- fingers crossed it sorts it :o | |
sand-eel |
posted on 15th Jul 12 at 23:00 |
Drive up to 40mph and put the brakes on (medium force) do this a few times then go up to about 60-70 and slam on the brakes, this usually sorts the burnt on deposits. | |
bigron1988 |
posted on 15th Jul 12 at 23:00 |
quote: That's funny as I had warped disks the other week , put them on a lathe and you could see it , so had to have them machined down , another Internet fact fail steve | |
Steve |
posted on 15th Jul 12 at 22:50 |
Lol yeah dropping the car on them may warp them but otherwise no such thing its a myth the vibration is caused by pad deposits bring burnt into the surface of the disc. Sitting at junctions with the footbrake on with hot brakes is a cause, as is bad bedding in | |
vince93 |
posted on 15th Jul 12 at 22:40 |
quote: ive had them before- fell off the axle stand and warped the disk :facepalm: but no it has happened before, just not as bad :boggle: | |
Steve |
posted on 15th Jul 12 at 22:21 |
Sounds like you haven't bedded them in properly, pad material deposit can happen at any point. No such thing as warped discs | |
Ben G |
posted on 15th Jul 12 at 22:16 |
has it done it before? if not, it may just be bad road camber or a really bumpy road. | |
vince93 |
posted on 15th Jul 12 at 22:14 |
i was goin under 50.. | |
John G |
posted on 15th Jul 12 at 21:49 |
Slow down | |
vince93 |
posted on 15th Jul 12 at 21:43 |
just been out for a meal with the missus and on the way home coming down the dual carriage way i had to put the anchors on a bit harder then usual, and it felt like the whole car was going to fall apart! |