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Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2637

2010 Defender 90 Puma 2.4 SW Alpine White

Puma: sticky 2nd gear

Hi gents,

Recently I've started noticing that the 2nd gear in my Puma is very sticky, only really happens in the morning.

But now it's getting so bad that when I tried to go out this morning (at around 10 am), I almost had to park the car down the street as I couldn't get into 2nd.

The mech says a few Puma owners have also reported the same.

They reckon putting 500-750ml of ATF in the gearbox solves this - what do you guys reckon?

Thanks --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

3rd Jun 2021 12:41pm

Matt110

Member Since: 29 Jun 2014
Location: UK
Posts: 680

How many miles has it done? If the 2nd gear synchro is worn and it needs replacing, you may well get a few more thousand miles out of the box by reducing the viscosity of the oil, but at the cost of the whole of the rest of the box.

3rd Jun 2021 1:13pm

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2637

Now on 85,000 km --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

3rd Jun 2021 1:53pm

Matt110

Member Since: 29 Jun 2014
Location: UK
Posts: 680

Not a synchro then... Well shouldn't be. It's too young.

3rd Jun 2021 1:59pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3409

2012 Defender 90 Puma 2.2 CSW Santorini Black

Could be one of the detents?

ATF fluid was spec’d for the lt77. Not very good for lubrication, but apparently helps shifting.
MT82 is very different, and I would be hesitant to add ATF. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

3rd Jun 2021 3:28pm

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2637

Thanks.

Mech reckons we do a complete fluid change with something full synth, like Motul or Redline. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

3rd Jun 2021 3:30pm

Pacha

Member Since: 23 Feb 2020
Location: North Yorkshire
Posts: 772

2008 Defender 90 Puma 2.4 HT Stornoway Grey

^^^^^^

Needs to be GL4 spec. Rgds.

Chris

3rd Jun 2021 6:02pm

Griff90bowler

Member Since: 24 Feb 2021
Location: Cowbridge
Posts: 127

I put Fuchs TITAN SINTOPOID LS SAE 75W-90 in all the drive train on mine

3rd Jun 2021 9:37pm

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2637

I'm going with Redline MTL MTL® 75W80 GL-4 Gear Oil: http://chemsailoils.co.za/product/mtl-75w80-gl-4-gear-oil/

Not cheap, but will see what it does and report back. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

8th Jun 2021 7:08am

Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2637

Ok, Redline's been in for about a week now.

Gearshifts are definitely smoother, but there's still a bit of 'sticky' in that 2nd gear - whether it's 1st to 2nd or 2nd to 3rd/vice versa. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

28th Jun 2021 9:00am

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