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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 83

United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
MT82 notchy
Puma with 78k, all oils refreshed less than 5k miles ago. Going from 1st to 2nd the gearbox feels like it doesn’t goes smoothly into 2nd and is slightly worse when cold. It feels like it catches and makes a slight clunk. All other gears fine. Any ideas if this is something to address before anything drastic happens or just from wear and tear. Would a slightly thinner oil help?
Post #1068829 31st May 2025 1:20pm
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jim4244



Member Since: 13 Apr 2014
Location: Bedfordshire
Posts: 947

England 2013 Defender 90 Puma 2.2 CSW Fuji White
Hi

What oil did you use when you changed the gearbox oil?

Jim
Post #1068831 31st May 2025 1:22pm
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Phillywilly72



Member Since: 29 Apr 2024
Location: Wiltshire
Posts: 83

United Kingdom 2011 Defender 110 Puma 2.4 DCPU Tamar Blue
Edit. Castrol trans max 75w90. I can’t remember tbh, I think the manual states two types and went for the thicker of the two
Post #1068833 31st May 2025 1:24pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 2387

United Kingdom 
I would be surprised if it was the gearbox at such low miles.. are you sure it’s not an adapter shaft or clutch issue ?

Giving Ashcroft transmissions a call to get their thoughts would be beneficial ,or message member Ashtrans on here
https://www.defender2.net/forum/member-ashtrans.html

An interesting topic on the MT82

https://www.defender2.net/forum/topic65856.html?highlight=mt82

Ps did this happen before oil change or after it ? Did you fill with a measured 2.2 litres ?

PPS Transmax Multivehicle 75w-90 is the correct oil as it's is a fully synthetic manual transmission fluid meeting API GL-4 specification
Post #1068836 31st May 2025 1:32pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20851

United Kingdom 
Might pay to have a look at the gearstick lower assembly, the rubber there can disintegrate and get in the way, or the nylon ball if original can crack..
You then can get quite a weird feel gear changes, which is caused by the stick selection not the gearbox itself.

Worth checking there is no gearbox oil leak, if it’s wet near the drain or anywhere else, but I doubt that’s the case. _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___
____\We|Will|Win/___

____/🇬🇧🇺🇸\____
_//*⛽️🛢️⚙️🧰*\\_
Post #1068856 31st May 2025 10:04pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3672

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
mine was poor 1-2 change when new, not sure what fixed it but its brilliant now.

New Clutch
New Adaptor Shaft (Ashcroft)
Extra locators on gear change

There is a big long thread on here somewhere about the 1-2 change being a bit rubbish DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #1068871 1st Jun 2025 7:38am
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jim4244



Member Since: 13 Apr 2014
Location: Bedfordshire
Posts: 947

England 2013 Defender 90 Puma 2.2 CSW Fuji White
Just a thought but you said that you had carried out a full fluids service?

There was no chance that you put Castrol Transmax Axle Long Life 75W-90 that is used for the diffs and transfer box in the gearbox by mistake?

Not sure that it would make that much difference, just a random thought.

Jim
Post #1068872 1st Jun 2025 7:41am
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 95

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
I have something similar for 1-2 km from cold, then it’s perfect. I can’t imagine the oil get warm that fast so I speculate if some areas of the gearbox take longer to be lubricated. If I remember correctly lubrication is by splash, so a bit random.
I too changed oil appr 10000 kms ago and at the same time the drive members in the rear. That made an improvement in overall gear shift quality. Clutch is 20000 km old so should still be fine.
I am not too concerned and think it can be further improved by elimination of slack in the drive train.
Post #1068910 1st Jun 2025 7:56pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20851

United Kingdom 
Was the precise oil quantity used?

The product IanH mentioned before is what I have in mine. _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___
____\We|Will|Win/___

____/🇬🇧🇺🇸\____
_//*⛽️🛢️⚙️🧰*\\_
Post #1069011 3rd Jun 2025 2:26pm
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 95

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
In my case I measured 2,2 l Transmax Multivehicle 75W-90.
Post #1069032 3rd Jun 2025 8:31pm
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keith



Member Since: 15 Aug 2012
Location: Edinburgh
Posts: 2259

Scotland 
custom90 wrote:
Might pay to have a look at the gearstick lower assembly, the rubber there can disintegrate and get in the way, or the nylon ball if original can crack..
You then can get quite a weird feel gear changes, which is caused by the stick selection not the gearbox itself.

Worth checking there is no gearbox oil leak, if it’s wet near the drain or anywhere else, but I doubt that’s the case.


There’s definitely something wrong if there’s NOT an oil leak 😮
Post #1069042 3rd Jun 2025 8:56pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20851

United Kingdom 
Gears 1 - 2 do tend to be a bit more that way inclined, especially when cold.

What does the clutch fluid look like? It should be changed every 2 yrs presumably similar to brake fluid.
It’s the same thing, but my point is, it might have gone a bit hydroscopic and took on some water content, from that, it could affect the hydraulic action of the slave with the clutch itself.

Often it can be accidentally overlooked, it often turns off relatively quickly normally, but if it’s really black then that’s not good. _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___
____\We|Will|Win/___

____/🇬🇧🇺🇸\____
_//*⛽️🛢️⚙️🧰*\\_
Post #1069044 3rd Jun 2025 9:13pm
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