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Rich h



Member Since: 25 Jul 2021
Location: Leicestershire
Posts: 31

United Kingdom 
Gearbox crunch
Hi
I’ve just got me first defender a 09 puma with 90 k on the clock. When I change from first to second and second to third it crunches gears it does get better the hotter the engine gets. Any ideas what it could be
Thanks Rich
Post #917161 16th Aug 2021 5:04am
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
I'd start by checking the level of the fluid in the clutch reservoir. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #917167 16th Aug 2021 6:08am
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3414

Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
Mine was not crunching, but I could feel the clutch dragging. Especially when I engage first, clutch fully still fully depressed, the Defender wants to surge forward. Engaging reverse was not a pleasure either.
Replaced the oil in the gearbox.. very little improvement.
Last action which seems to have made most improvement was adjusting the push rod on the clutch master cylinder. I think the rod was set too long when the master was replaced and there was no clearance between rod and piston, and caused the non return valve inside the master cylinder to not work as intended. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #917170 16th Aug 2021 6:24am
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 730

Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
It may be “ normal” for this gearbox. I have found that most defender gearboxes require a slow technique to achieve a crunch free change between Ist and 2nd and 2nd and 3rd. Try a slight pause in neutral whilst changing these gears. Quick changes don’t seem to work in defenders.
Welcome to the odd world of defender ownership.
Post #917173 16th Aug 2021 6:48am
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Whilst I agree that these boxes respond better to a slower change than ordinary cars, they shouldn't crunch - particularly 2nd to 3rd. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #917190 16th Aug 2021 8:01am
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Rich h



Member Since: 25 Jul 2021
Location: Leicestershire
Posts: 31

United Kingdom 
Just checked the reservoir and that’s okay. if you double clutch it it works fine could it be the synchromesh going ?
Post #917200 16th Aug 2021 9:32am
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hank



Member Since: 12 Sep 2016
Location: South Wales
Posts: 2300

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
TDCi Defenders use the MT82 gearbox. If you google "MT82 Mustang" you will find a plethora of news stories about Mustang owners suing Ford over issues with the MT82 gearbox.

https://www.motortrend.com/news/2011-2019-...g-lawsuit/

https://fordauthority.com/2020/06/mustang-...n-lawsuit/

There are a few things you can do to improve the situation but you may be unlucky and have a crunchy one.

See here for the JLR fix for poor shift quality https://www.defender2.net/forum/topic29132.html

I have also read that it is imperative that the gearbox is filled with the correct volume of oil rather than filling it until it overtops the 'level plug' (which apparently is not a level plug at all)

I also experienced good results from fitting a Shift-R (https://tmdtuning.com/shop/defender-short-shift-quick-shift/) > 110 XS Double Cab
Post #917213 16th Aug 2021 9:57am
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3414

Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
Check out this video from Britannica Restorations. It is well explained at about 08:00 into the video.

 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #917215 16th Aug 2021 10:09am
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BogMonster



Member Since: 05 Feb 2008
Location: Stanley
Posts: 400

Falkland Islands 2015 Defender 110 Puma 2.2 USW Corris Grey
It's just "a thing they do". Mine has always done it on 2-3 change and most of the Pumas I have driven have some gearchange irritation, with the 3rd crunch being most common.

Relatively recently I found a way to stop it most of the time which is to do a little clockwise 'lever stir' down towards 4th before you go into 3rd, and I'm now much happier! ---
2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi
Post #917388 17th Aug 2021 9:30am
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