 | Home > Puma (Tdci) > warped brakes |
 
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265   
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guys (and gals)
do you experience what feels like the judder of warped brakes when slowing down......I mean just that little hint of it - nothing major just the feel of something isnt right? is it a defender trait / 'they all do that sir' ? |
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29th Nov 2012 2:46pm |
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| superspoons Member Since: 16 Apr 2012 Location: Herts Posts: 314 
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Not me - no judder or anything.... warped disc? pads on the way out?? Cheers,
Superspoons |
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29th Nov 2012 2:50pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265
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I'm confident the brakes are fine (although that's how it feels).....
I'm thinking transmission again. so no juder what so ever..........I wouldn't expect there to be any hence I've raised the question. thanks for the response.... fcol  |
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29th Nov 2012 2:53pm |
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| iruffell Member Since: 03 Sep 2010 Location: Marlow, Buckinghamshire Posts: 343  
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could also be an unbalanced wheel if it only happens at certain speeds?
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29th Nov 2012 3:40pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265
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just under braking (normal braking - not heavy).
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29th Nov 2012 3:49pm |
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| tatra805 Member Since: 16 Aug 2011 Location: Dolany Posts: 436  
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Catherham,
I sometimes notice the same, but not only on the 110. How long are you parked after having this? I have both the 110 and MB egg-tired when coming back from a week business trip and now in the colder temps it takes more time to heat the tires so they form back to round + colder is more stiff anyway. (so it feels worse when colder while it is not) Dont rule tires out yet as said above. How fast is the vibration? Gearboxes tend to turn quite fast to be causing judders, they more make whines and whistles to my experience. A wheel rotates at rough approx 400rpm at 60km/h which is a vibration of 6.6 pulses per second x2 for egg tires (so 4.4 pulses per second at 20km/h) Diff and propshaft times 3 or 3.5 without looking something up And i guess all inside the gearbox faster but depending on engine speed.  |
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29th Nov 2012 4:33pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265
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hmmm - interesting tatra805.
don't think its tyres as been using regular and has been happening through summer. thank you. |
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29th Nov 2012 4:52pm |
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| Lou Sparts Member Since: 15 Apr 2012 Location: Kent Posts: 1501 
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If your defender is still under warranty ask the dealer to check all the discs for runout with a dial gauge,if its out of warranty try and borrow a dial gauge and check them yourself,it does,nt take much runout (warping) to give a pulsing effect through the brake pedal when braking.Maximum disc runout given in haynes manual is 0.15mm. 2005 Td5 90 XS
Steve |
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29th Nov 2012 5:14pm |
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| JSG Member Since: 12 Jul 2007 Location: Berkshire Posts: 2412
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Could well be warped discs. I had the front discs warp on my 07 Puma just as I arrived at Portsmouth for the overnight ferry to France.
It was only noticable braking at speeds over 50mph - LRA gave me the details of the dealer in Nantes as I did want them to come out and the dealer was wating for me to arrive, came out for a test drive with me, confirmed my diagnosis, told me they'd be ok till I got back to Blighty (they didn't have any in stock), gave me a coffee and sent me on my way. Only hiccup was my very limited French and their complete lack of English 
When I got home the dealer swopped them out and fitted new pads and I never had a problem after that. John http://www.hampshire4x4response.co.uk 2011 Tdci 110 CSW XS |
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29th Nov 2012 5:33pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6265
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well I don't think its the tyres - standard conti tyres (I think - can't recall what they are but they're the standard fit tyre).
although it feels like warped discs I'd be really suprised as I drive like miss daisy. none the less no harm in getting them measured. however I have to admit this is the least of my problems at the moment but will check in due course. thank you. |
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29th Nov 2012 9:29pm |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018 
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Good article here explaining why a diagnosis of warped discs may not actually be the real issue:
http://www.mossmotors.com/SiteGraphics/Pages/brake_discs.html or even this: http://www.stoptech.com/technical-support/...ther-myths |
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30th Nov 2012 3:24pm |
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