↓ Advertise on Defender2 ↓

Home > Maintenance & Modifications > Transmission Noise - This could be expensive!
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 1952

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Transmission Noise - This could be expensive!

I have a noise coming coming from somewhere in the driveline that needs diagnosing. The best way I can describe it is a loud dry bearing noise. When it happens, it sounds bad. It’s not a whine like you might expect from a worn diff (I do have a bit of that). It’s not rumble like a knackered wheel bearing.

It occurs on very light or neutral throttle and is absent under load or overrun. It’s worst on a gentle decent when you just need a tiny amount of throttle to maintain speed. Here’s the awkward bit, it only does it once the car is well warmed up on a long fast run, and only in warm weather. Doesn’t present itself at lower speeds. I just got back from Morocco and it was evident in the warm weather there and in Spain, but gone, or much reduced as we got north and it got cold. Did the same thing on my Pyrenees trip over the summer. The problem is I can’t replicate in the cold weather we have here.

I do know my clutch is knackered as it is rattling like hell, but my feeling is this is not related. I did try changing to a higher quality synthetic gear oil throughout the transmission, in case it was mineral oil not liking the heat, but that’s made no difference.

I really want to get this sorted before next years trips in case it is an axle or gearbox about to expire, but don’t want to to start changing random things in the hope I’ve fixed it, only to find out it still there or even worse when I’m somewhere remote and hot next year. 2007 110 TDCi Station Wagon XS

Post #800892 5th Nov 2019 3:25pm
View user's profile Send private message View poster's gallery Reply with quote
X4SKP



Member Since: 29 Nov 2013
Location: Berkshire
Posts: 1725

United Kingdom 2010 Defender 90 Puma 2.4 SW Stornoway Grey

Hello Bluest

One approach if you can arrange it that may help, even get straight to the issue (or issues)
is to find a good garage (Land Rover independent specialist would be ideal) get the Puma up off
the ground on a lift so you can walk underneath it. The garage should also be able to lift the vehicle
up on axle stands (the slide in type designed to work on the lift) this means that the Land Rover
can be 'driven' rolling road like but in fresh air. If they are good, they will be able to roam around
underneath and locate the area giving trouble... Thumbs Up

One word of caution...they should check...
(you should check if there) that all tyres are stone free before they are spun up... Shocked

I have done this twice once to confirm recently a wheel bearing and previously a universal prop shaft joint.

Good Luck SKIP.

Post #800904 5th Nov 2019 5:56pm
View user's profile Send private message View poster's gallery Reply with quote
Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 1952

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black

Thanks X4. That’s probably the best approach, but am concerned that it won’t show up as it doesn’t happen at low temps. Even in the warm the car needs to on the motorway for 20 mins plus before it starts to make noises. I don’t have a trusted specialist either, which is a separate problem. 2007 110 TDCi Station Wagon XS

Post #800987 6th Nov 2019 8:15am
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 10206

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Noises like this can be incredibly hard to track down, at least until something finally breaks.

From the description my immediate suspicion would be that you have a bearing breaking up in the gearbox. Do you notice any additional vibration through the gear lever when the noise is happening?

Post #801002 6th Nov 2019 9:58am
View user's profile Send private message View poster's gallery Reply with quote
Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 1952

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black

I haven’t noticed any additional vibes. 2007 110 TDCi Station Wagon XS

Post #801018 6th Nov 2019 12:21pm
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 10206

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

About this time last year my Disco2 (at 200k+ miles) started making a noise which matches your description almost exactly. Since it was impossible to track it down, I lived with it until earlier this year when, in the course of one journey, it suddenly became very much worse, quite alarming in fact, at which time the gear lever also started vibrating significantly whenever the noise was occurring - vibrating enough to be uncomfortable to hold. This confirmed my diagnosis of a bearing in the gearbox failing, and a replacement gearbox from a breaker has cured the problem.

I haven't yet stripped the old box to find out what has actually failed, but I suspect that the intermediate bearing on the mainshaft is breaking up.

Post #801024 6th Nov 2019 1:34pm
View user's profile Send private message View poster's gallery Reply with quote
Will@LRW



Member Since: 04 May 2019
Location: UK
Posts: 11

1997 Defender 110 300 Tdi CSW Alpine White

I've had this type of noise twice, once a failing rear diff input bearing and once a seized UJ. On overrun it sounded like dropping a bag of bolts into a blender Confused

Take one prop off drive it to see if it changes. Only appearing when warm could be due to treacle-like diff oil absorbing the noise. LR Workshop

Post #801028 6th Nov 2019 2:05pm
View user's profile Send private message View poster's gallery Reply with quote
Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 1952

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black

Thanks Will. I will try that, although the need for hot weather for the issue to manifest may limit what I can detect. I may also just change all the UJs as a matter of course as I don't have any record of them being renewed in the past. There's no obvious play in them, but you never know.

Regarding the axles. Is there any way I can check the health of the input bearings, by checking play or end float or anything? 2007 110 TDCi Station Wagon XS

Post #801062 6th Nov 2019 5:13pm
View user's profile Send private message View poster's gallery Reply with quote
Will@LRW



Member Since: 04 May 2019
Location: UK
Posts: 11

1997 Defender 110 300 Tdi CSW Alpine White

Basically I put pressure on the diff flange in different directions whilst turning it to feel for roughness, but certainly you don't want there to be any movement of the flange up or down, side to side or in and out. LR Workshop

Post #801354 8th Nov 2019 2:57pm
View user's profile Send private message View poster's gallery Reply with quote
custom90steve



Member Since: 21 Jan 2010
Location: South West England
Posts: 17287

United Kingdom 2007 Defender 90 Puma 2.4 SW Stornoway Grey

It's worth being sure the diff nose pinion bolt / nut isn't loose too and no movements in the flange as mentioned I think above.
It sounds over simple but as with other things it can often be the smaller cheaper things. (Hopefully!) that are the culprits.
Everything cheaper, and easy access is worth checking before delving deeper.
And Prop UJ's and take they off the check as well, because they can be difficult to find a failed UJ too.

It could be many things and there are plenty of ideas here given, some easy to check others not so butt start with the easiest and work your way though each ite.
Sometimes the smallest thing can seem like a really big problem.

Thumbs Up Made In GB. 🇬🇧

Watts ÷ Volts = Amps.
Amps X Volts = Watts

Post #801371 8th Nov 2019 5:04pm
View user's profile Send private message View poster's gallery Reply with quote
Marks Landy



Member Since: 09 Feb 2015
Location: Cheshire
Posts: 130

United Kingdom 1985 Defender 90 200 Tdi SW Java Black

Maybe a quick squirt with a grease gun on the prop shaft yokes before you start removing prop shafts?

Post #801377 8th Nov 2019 6:00pm
View user's profile Send private message View poster's gallery Reply with quote
Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 1952

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black

The UJ are all well greased, so I fairly sure it’s not that. 2007 110 TDCi Station Wagon XS

Post #801390 8th Nov 2019 7:37pm
View user's profile Send private message View poster's gallery Reply with quote
mick



Member Since: 08 Feb 2010
Location: Yorkshire
Posts: 2059

England 2010 Defender 130 Puma 2.4 HCPU Rimini Red

Have a ride over to Stonelake of Halifax they are a top team and do loads of Defenders

Post #801394 8th Nov 2019 7:49pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2019 Futuranet Ltd & Martin Lewis