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Nobbydyer



Member Since: 09 May 2017
Location: Milton Keynes
Posts: 6

England 2008 Defender 110 Puma 2.4 HT Tonga Green
M82 gearbox selector play.
there is a lot of play left to right in the gear lever of my Defender Puma 6 speed box. I have tried other peoples and this is worse. It is not the usual nylon bush and ball parts that show up when you Google it but the metal cup lower down, that the end of the gear lever sits in, this is very loose and easy to move side to side with the gear lever out.
looking at the Land Rover drawing for this part it seems to be fitted to a shaft with a grub screw or bolt (the drawing is not very clear.
does any one know if there is any history of this coming loose from the shaft , and if so can it be fixed with the box in the vehicle.
this is my first post on here so apologies if if Ive cocked anything up, but any help with this would be greatly appreciated

Thanks
Nobby.
Post #622930 9th May 2017 3:19pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
I think the ball on the very bottom of the stick should have this on it, which fits into the selector shaft.

http://www.onlinegearboxparts.com/product/...nylon-cup/

It's shown in the video for the slickshift install, here;
http://www.onlinegearboxparts.com/product/...lickshift/
Post #623025 9th May 2017 9:34pm
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Nobbydyer



Member Since: 09 May 2017
Location: Milton Keynes
Posts: 6

England 2008 Defender 110 Puma 2.4 HT Tonga Green
I have just heard from Ashcroft Transmissions that the yoke is held to the selector shaft with a cotter pin which does not usualy give problems, so it looks like we'll have to look further down in the box, or just live with it.
Post #623062 10th May 2017 5:10am
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Paulv8



Member Since: 09 Jun 2013
Location: Milton Keynes
Posts: 616

1989 Defender 90 V8 Petrol CSW Alpine White
Well firstly hello from Milton Keynes mate.

I'm gonna be having my box out to change the clutch and will buy a transmission cradle to do it. So if you need to borrow it, shout. V8 90...WIP
Post #623071 10th May 2017 6:43am
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Nobbydyer



Member Since: 09 May 2017
Location: Milton Keynes
Posts: 6

England 2008 Defender 110 Puma 2.4 HT Tonga Green
Thanks for that, but it'll be the last resort to have the box out. I'm going to try all new std parts first and see how that goes.
Post #623097 10th May 2017 10:48am
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Lotus_esprit_s1



Member Since: 01 Oct 2014
Location: Uk
Posts: 201

Nobbydyer wrote:
I have just heard from Ashcroft Transmissions that the yoke is held to the selector shaft with a cotter pin which does not usualy give problems, so it looks like we'll have to look further down in the box, or just live with it.


Hopefully this reply is not too late, or may be of use to someone else.

Yes, the yoke is held onto the shaft by a cotter pin, but it contrary to Ashcroft, it can and does come loose. You need to remove the transmission tunnel, gearstick and transfer stick, (unclip balljoint onto hi/lo selector) then unbolt the shifter unit (4x m8 bolts). This reveals the shift yoke which I expect you will then see is loose on the shaft. It is held by the cotter pin fastened by the m6 nut visible, which is probably loose. I slacken the nut off and drop a bit of loctite studluck on it, then retorque it up tight.

As there is a bit of play in the positioning of the yoke I temporarily position the alloy shifter housing back onto the box and line up the yoke so it is visibly centralised in the hole of the housing, then carefully remove the housing and torque up the yoke cotterpin nut.

Should only take an hour or so in situ.
Post #632367 19th Jun 2017 9:36pm
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Nobbydyer



Member Since: 09 May 2017
Location: Milton Keynes
Posts: 6

England 2008 Defender 110 Puma 2.4 HT Tonga Green
Spot on. Exactly as you described, took me about an hour and a half but I'm a bit of an old codger and half of that was getting the rubber mat out and the cover off. Many thanks.

Click image to enlarge
Post #707773 17th May 2018 7:09pm
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Paul Breen



Member Since: 08 Apr 2022
Location: Newport
Posts: 5

Wales 2012 Defender 90 2.5 TD HT Auto Pennine Grey
Hi
I'm not very mechanically minded as I work in electronics

I have a problem with my reversing light, I've checked everything out and worked out that it is whatever presses the ball bearing on the reversing light switch

would i be able to access the actuator for the switch by the method shown in this discussion??

cheers

Paul
Post #948695 8th Apr 2022 7:50pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Sadly no.
Post #948700 8th Apr 2022 8:16pm
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Paul Breen



Member Since: 08 Apr 2022
Location: Newport
Posts: 5

Wales 2012 Defender 90 2.5 TD HT Auto Pennine Grey
Hi Black wolf

Many thanks for the prompt reply to an old thread

Any idea of how i can get to it??

I turned 1mm off the inside of the hex face of the switch to get it to go in a little further thinking this may cure it without any luck

I've actually no idea of where the actuator is or how it works, i guess what ever the actuator is it must slide past the switch otherwise they wouldn't use a ball bearing

cheers

Paul


Last edited by Paul Breen on 8th Apr 2022 8:36pm. Edited 1 time in total
Post #948706 8th Apr 2022 8:31pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16809

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
As I recall it is the reverse selector shaft which actuates the switch. Getting to it involves stripping the box completely.
Post #948708 8th Apr 2022 8:35pm
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Paul Breen



Member Since: 08 Apr 2022
Location: Newport
Posts: 5

Wales 2012 Defender 90 2.5 TD HT Auto Pennine Grey
OMG wasn't expecting that Big Cry

I think I'll get the vernier calipers out and see if it's possible to take a bit more off the face of the reversing switch to get it to mate with ball bearing

would you know if its a straight push onto the ball bearing or does it slide past ?

cheers

Paul Better a bad day on the water than a good day in the office
Post #948709 8th Apr 2022 8:41pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19451

United Kingdom 
Change the switch if you haven’t already, they can often fail. Unless you already have. Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧
Post #948710 8th Apr 2022 8:45pm
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Paul Breen



Member Since: 08 Apr 2022
Location: Newport
Posts: 5

Wales 2012 Defender 90 2.5 TD HT Auto Pennine Grey
Hi Steve

many thanks for you assistance

I've already tried this, without any luck. both the new one and the old are working fine.

I read a post somewhere that the actuator was on the gear linkage and that the ball bearing wears a groove into a plate and that you can weld the groove in the plate and fettle it up, apparently the plate is worn down by the ball bearing as it's harder than the plate

I cant find that post now though to copy and paste here

cheers

Paul Better a bad day on the water than a good day in the office
Post #948713 8th Apr 2022 8:57pm
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Paul Breen



Member Since: 08 Apr 2022
Location: Newport
Posts: 5

Wales 2012 Defender 90 2.5 TD HT Auto Pennine Grey
Hi all

I found the post I mentioned previously, would this be a gear box out procedure ??

Cheers

Paul



"I had the same problem with my Disco. On the R380 gearbox the reverse light switch is activated by a steel block - this hasn't been case hardened sufficiently and a groove wears in it, caused by the reverse light switch plunger and consequently the plunger isn't depressed far enough for the switch to close the internal contacts. The only solution I could come up with was to remove the gear selectors and the block and run a weld where the worn groove was and then file it back. The weld is harder than the block and if you do this you wont have any more problems, the other solution I'd guess is to replace the block." Better a bad day on the water than a good day in the office
Post #948715 8th Apr 2022 9:09pm
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