 | Home > Puma (Tdci) > Coasting grind noise |
 
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| Niel Member Since: 14 Sep 2009 Location: Sandton Posts: 27   
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Hallo Defender people.
I have a 110 Puma with 15000kms on the Clock. I am experiancing a disturbing grinding noise when coasting at about 110km/h. It sounds like gears grating against each other. Diff gearbox, I dont know. The strange thing is i got a gearbox and clutch replaced at 7000kms and this sound only started from then. My dealer will now open a technical request the the UK for assistance as they seem to think this sound is quite normal. Is this normal, a built in Defender sound? Puma 110 sw White No extras yet. |
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5th Mar 2010 6:25am |
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| robharvey Member Since: 14 Dec 2009 Location: Durban Posts: 86
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Niel,
I have / had the same thing - see here http://www.defender2.net/forum/topic2208.html I reported it at my 10k oil change, got the usual "They all do it" reply, but the funny thing it only does it very seldomly now. I don't know if the stealer greased or tightened something, but it definitely is 90% improved. Let us know if you find a definitive answer. Rob |
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6th Mar 2010 7:24am |
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| Niel Member Since: 14 Sep 2009 Location: Sandton Posts: 27
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Rob yes that is exactly what is happening to mine. The worst thing is it never used to make that noise until they put a new rear dif, gearbox and clutch. It is very uncumfortable driving at that 110 speed. It sounds like something is going to break.
Off topic, why did you do a 10k oil change? LR only recommends it at 20K? Puma 110 sw White No extras yet. |
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8th Mar 2010 6:28am |
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| robharvey Member Since: 14 Dec 2009 Location: Durban Posts: 86
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Re the oil change, I just feel more comfortable doing it at 10k. I think in our conditions the engines will work harder (heat, dust, altitude), and giving them fresh oil every 10k will hopefully prolong lifespan.
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8th Mar 2010 8:38am |
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| ralton Member Since: 04 Feb 2010 Location: Durban Posts: 153 
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mine makes the same noise when i'm "coasting" at around 110-120 km/hour . has always done it on and off, sometimes worse than others. 65000km. i think it may be normal?
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9th Mar 2010 7:01am |
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| Niel Member Since: 14 Sep 2009 Location: Sandton Posts: 27
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yes it may be normal but it certainly is not right. mechanical components should not make that sound, nor should a dif whine. there must be a misalignment or something that is not right. If this is normal then they all should make the same noise, but judging from the posts there are very few people with this grinding noise? Puma 110 sw White
No extras yet. |
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11th Mar 2010 6:52am |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2603 
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Niel, do you have raised suspension? Does the noise sound like a coffee-grinder? If so, it could be the angle of the front propshaft to the diff is too acute, and at a certain rpm it gets slightly out of alignment and grinds. This usually happens when the lift is more than 50mm. Eventually mine was replaced by the double-cardon propshaft from a D2 and the problem went away. |
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11th Mar 2010 8:04am |
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| BigGeorge Member Since: 08 Aug 2009 Location: Zurich Posts: 43  
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Share the same view as Niel. These components when properly adjusted should not be making such noise. My V8 doesn't nor my Jeep XJ did and both share the same ancient technology
As mentioned above I was not happy with the new transfer box and rear diff. So I dropped the car on sunday evening at the dealer asking to check and rectify. They didn't even bother to call that they will look at it. So I stopped by yesterday evening. The mechanic was a bit swamped... they took the car for several test drives but no one seemed to notice any noise. The machanic said that he changed the items and that there was nothing to adjust... just take the diff out and put the new diff in. So we went again on a test drive with the same result for me and him. I can hear it he doesn't. Inquired about the drag and he said there's no drag / mechanical resitance. Well, if there's drag I will notice at the gas station at the latest. He volunteered to drive my car to his home and back the next morning. Maybe he will finally notice the noise and drag.... but mind you... it took me also a while to understand that santa clause is not real.. Cheers George The goons are trying to bring me down! Defender 110 SW MY10 useless piece of  ... but I like her
Defender 90 V8 50th Anniversary Series IIa 109 / 6 cyl. ex-fire truck |
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11th Mar 2010 9:11am |
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| Niel Member Since: 14 Sep 2009 Location: Sandton Posts: 27
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mine is stock standard. it is not a constant noise, it only happens at a specific point when almost when you take up the slack in the drive train with the throttle at 110km/h and then let go off again. it is really noticeable on a downhill. the thing is this is n new noise since the new diff and gearbox which leads me to believe that something is not aligned properly. Puma 110 sw White
No extras yet. |
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11th Mar 2010 9:57am |
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| BigGeorge Member Since: 08 Aug 2009 Location: Zurich Posts: 43
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She's back again... The mechanic drove the car home and back to the work shop. Since I thought that they were not going to do anything about it, I called and asked whether I could pick up the car. He said no, they need to check something. The next day I could pick up the car and they told me the dismantled the NEW differential and noted that it was badly assembled / misaligned in the factory. The car feels again as "crispy" as before, however the whining and occasionally grinding noise form the rear diff is still there. (maybe the put back in the old differential). Same with the apparently fixed grinding noise from the gear box / transfer box. Transfer box is new but the grinding noise is still there. In addition when cold and coasting at 60-80 km/h I get a whistle from the gearbox area. I guess I will have to get used to it and complain only when the
breaks down.
Cheers George The goons are trying to bring me down! Defender 110 SW MY10 useless piece of ... but I like her
Defender 90 V8 50th Anniversary Series IIa 109 / 6 cyl. ex-fire truck |
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25th Mar 2010 2:18pm |
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| Niel Member Since: 14 Sep 2009 Location: Sandton Posts: 27
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I have a test drive scheduled with LR South Africa on Monday the 29th.
I am going to make them drive it and sit next to them and make sure this time they hear it !! Will post their findings. Puma 110 sw White No extras yet. |
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25th Mar 2010 2:28pm |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2603
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Wow, Niel, you managed to get LRSA involved!? How much was the bribe?  |
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25th Mar 2010 2:31pm |
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| BigGeorge Member Since: 08 Aug 2009 Location: Zurich Posts: 43
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Niel
take out the chubby box (if you have one) and unscrew the gear box cover. When you lift the cover, the grinding noise will be audible to deaf people! George The goons are trying to bring me down! Defender 110 SW MY10 useless piece of ... but I like her
Defender 90 V8 50th Anniversary Series IIa 109 / 6 cyl. ex-fire truck |
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25th Mar 2010 2:45pm |
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| Allan Member Since: 09 Sep 2009 Location: Perth Posts: 166  
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Mine used to make this noise after I had a 2 inch lift done, sounded like the gearbox was full of loose spanners. Took it back to standard hight and it went. Ive since put 130 front springs on it to compensate for the front bar and winch and have noticed it faintly at times. My vehicle has had the prop shaft greese nipple mod ect, ect. It now is vibrating during first 10km accel. and last 10 km decel. has done it for the last 6 months (service due the can look at it then). I think its something we are going to have to live with until LR do a recall and change the front prop shafts for something that can handle
defender articulation Allan  |
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25th Mar 2010 3:16pm |
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