 | Home > Puma (Tdci) > big clunk from the rear |
 
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| kljw Member Since: 23 Jan 2009 Location: Edinburgh Posts: 265   
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hi all
anyone out there get a big clunk from the rear somewhere when changing down gears? think it could be the diff, but not sure. Cheers keith puer claudius |
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7th Jul 2009 11:36am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248  
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Had this on my supposed 09 defender, subsequently found out to be a sept 08 build, that LR replaced a week ago. The new April 09 build one does not have the problem at all along with not having rear diff whine on lift off from 60 mph !
On my LR experience the instructor did mention something about the cause, and I could be totally wrong here, but he mentioned something to do with the assist on the clutch and the the speed of release of the clutch plates. On my old vehicle it was worse when I released the clutch quickly. I must admit, on my old defender it did sound like the rear diff as well. Bob |
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7th Jul 2009 12:10pm |
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it manually ?| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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I forgot Keith's vehicle was an auto, so strike out the clutch theory !
Bob |
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7th Jul 2009 12:36pm |
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| Bosun Member Since: 21 Jul 2008 Location: Great Berry Posts: 141 
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I also get this relentless clunk when I change gear (unless I let the clutch up realy slowly, almost to the point of slipping it). Had new clutch, gearbox and transfer box, but still the same. Might this also be the diff, or diffs? Land Rover see to think it's normal, but I,m not convinced, because my TD5 was OK.
Bosun. |
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8th Jul 2009 8:37am |
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| JohanH Member Since: 13 Feb 2009 Location: Trondheim Posts: 26  
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Had the same on my -08. In the end the dealer found that the bolt to the back axle were loose. I have not had problems with this since.
Cheers, Johan H Defender 110 -08 Audi UrQuattro -88 BMW 2000 touring -73 Mercedes-Benz 250 -75 Alfa-Romeo 156 -98 |
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8th Jul 2009 10:11am |
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| bustduster Member Since: 13 Apr 2009 Location: UK Posts: 14 |
Similar problem with my June 08 110. The well recorded knocking/clanking when coming to a halt after a longish motorway run has been my only major problem. Had the brake drum and shoes replaced along with the updated clutch and flywheel but it still did not cure it. Off to the dealer again soon to try and fix again. I suspect it may be differential related as there is a loudish whine when lifting off from 120km/h and there is some backlash/clunk when changing gear (when lifting off clutch and pressing accelerator).
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8th Jul 2009 10:27am |
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| kljw Member Since: 23 Jan 2009 Location: Edinburgh Posts: 265
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Grockle
it's when the box down shifts in auto. i have changed the change pressures a wee bit, and that has made a difference, but is still there. does not happen all the time, just at random moments. when using it in manual, there is nothing, but then again, the change pressures are different in manual to auto. Cheers keith puer claudius |
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8th Jul 2009 11:06am |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266 
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It could be the slack being taken up in the drive train,or has it just started Keith ? 2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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8th Jul 2009 11:18am |
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| kljw Member Since: 23 Jan 2009 Location: Edinburgh Posts: 265
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Grockle
it has been there since day one, and has got allot better since i played around witht the change pressure. i guessed it may just be slack, so not that worried. as i have already done &.5k miles, i will wait and get the dealer to look at it when i get it serviced. Cheers keith puer claudius |
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8th Jul 2009 12:13pm |
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| AndrewS Member Since: 10 Apr 2007 Location: Hereford Posts: 3708 
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Or loose prop bolts
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14th Jul 2009 4:24pm |
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