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SteveS

Member Since: 05 Oct 2010
Location: Devon & Berkshire
Posts: 388

2009 Defender 110 Puma 2.4 USW Santorini Black

Heated Breather Modification LTB00196 for arctic regions

I'm off to Scandinavia in the New Year and given the very cold temperatures I did some checking to see if there are any specific issues with my truck. Somebody pointed me to technical bulletin LTB00196 which in its original form was for all vehicles chassis number 7A732615 onwards. However, on checking with Land Rover they said that this problem was cured from chassis number 7A776667 onwards.

Can anyone with access to the land rover system confirm if the information that I've been given by LR is correct - not that I don't trust LR, but I don't want to have problems at -30C.

The original bulletin covered Scandinavia and Russia. The kit P/N is LR012616 and fits to the Crankcase breather

Thanks in advance

6th Oct 2011 7:47pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black

I have contacted my local dealer today, so far they have not come across the problem. I have send the bulletin number in LTB00196 and they are now contacting LR Norway... fingers crossed

7th Feb 2012 6:10pm

mermoto

Member Since: 21 Sep 2011
Location: Essex
Posts: 326

Quite an interesting problem this since it has been recently highlighted on the Mudrut Arctic trip. Where exactly does the end of the breather come out? Can it be relocated to avoid wet air getting in and freezing? or is the damp actually being vented by by the Puma engine?

Mermoto

10th Feb 2012 1:16pm

dgardel

Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

If interested download the bulletin https://files.me.com/daniele.gardellin/5czjyu Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License

10th Feb 2012 2:15pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

nice one Daniele

I have also heard back from the dealer .. trying to get it fixed on warranty

10th Feb 2012 2:26pm

mermoto

Member Since: 21 Sep 2011
Location: Essex
Posts: 326

dgardel wrote:
If interested download the bulletin https://files.me.com/daniele.gardellin/5czjyu

So reading the bulletin do I take it that the heater element in the breather hose is only working when the engine is running? does this mean when the engine is cold (ie standing over night) that ice can still form in the hose in severe conditions?

Mermoto

10th Feb 2012 3:49pm

BigRuss

Member Since: 15 May 2010
Location: Norfolk
Posts: 2785

2010 Defender 110 Puma 2.4 USW Santorini Black

bpman wrote:
nice one Daniele

I have also heard back from the dealer .. trying to get it fixed on warranty

Is that a uk dealer or the one you bought it from? Russell
2011MY 110 XS USW Black

10th Feb 2012 4:02pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

mermoto wrote:
dgardel wrote:
If interested download the bulletin https://files.me.com/daniele.gardellin/5czjyu

So reading the bulletin do I take it that the heater element in the breather hose is only working when the engine is running? does this mean when the engine is cold (ie standing over night) that ice can still form in the hose in severe conditions?

Mermoto

the defender is tested to -40c

** updated **

The breather pipe runs from the rocker cover (just behind the pasty warmer) to the back of the airbox unit.

From what I have read, the problem seems to occur due to the cold air in the airbox meets the warm air from the breather pipe, and ice forms - eventually blocking the breather and causing pressure in the engine.

D44 sell a heater kit to fix the problem in the form of an inline heater unit.

It's wired into the heater terminals, so the in-line breather heater is activated when the heater is on in the vehicle. (makes sense)

Just to add, I have a MY2010 Swiss 110 and it has not got the modification as standard.

10th Feb 2012 5:48pm

Denis

Member Since: 28 Dec 2010
Location: prairie
Posts: 58

2010 Defender 110 Puma 2.4 SW Stornoway Grey

Here is mine breather heater - it is consists of relay, cable and in-line heater itself. The heater itself is under the pipe unsulation - I marked the place.

Fitted as standard, 2010MY. I fitted pipe insulation on breather for additional confidence

Also for cold climate you need to fill the gap under the bonnet, because breather is almost exactly facing that gap.

Click image to enlarge Puma 110

11th Feb 2012 2:00pm

T1G UP

Member Since: 08 Dec 2009
Location: Bath
Posts: 3101

2011 Defender 110 Puma 2.4 XS CSW Orkney Grey

remove the breather and put a small K&N filter instead? As we have fresh engines they should breath heavy anyway so a small filter will be suitable.http://www.knfilters.co.uk/search/universal.aspx

11th Feb 2012 2:22pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

Denis wrote:
Here is mine breather heater - it is consists of relay, cable and in-line heater itself. The heater itself is under the pipe unsulation - I marked the place.

Fitted as standard, 2010MY. I fitted pipe insulation on breather for additional confidence

Also for cold climate you need to fill the gap under the bonnet, because breather is almost exactly facing that gap.

Click image to enlarge

thanks Denis, looks like a good idea to insulate the pipe too. Do you use the LR in-line heater or something else ? the LR fix wires the in-line-heater into the cabin heater electrics, so that the heater is on when the cabin fan/heater is running .. how have you wired yours ?

11th Feb 2012 3:26pm

Denis

Member Since: 28 Dec 2010
Location: prairie
Posts: 58

BPman

Heater was in place when I bought truck in 2010 from dealer, it is genuine LR and yes it is wired to cabin heater through relay on photo.

There were many Puma Defenders in Russia in 2007-2009 with oil off engine (sorry for my english

) due to breather pipe. As far as I know no one was when idling - all on speed about 80 km/h and higher and cold conditions.

Cheers Puma 110

11th Feb 2012 3:42pm

bpman

Member Since: 21 May 2008
Location: Oslo
Posts: 8069

thanks Denis ... I missed the bit "Fitted as standard, 2010MY"

- must be fitted to Russian and Scandinavian models

do you know of any other changes on your model for cold climates ?

cheers
bp

11th Feb 2012 4:11pm

Denis

Member Since: 28 Dec 2010
Location: prairie
Posts: 58

bpman wrote:

do you know of any other changes on your model for cold climates ?

cheers
bp

Yes I know! Now other changes!

Other small modifications are self-made:
1. self adhesive rubber sealant (for doors and windows) - on perimeter of bonnet
2. engine blanket - is merely put on all engine bay
3. radiator muff
thats enough for -30C - tested

have some photos - if someone interested

cheers Puma 110

Last edited by Denis on 12th Feb 2012 5:42pm. Edited 1 time in total

11th Feb 2012 6:04pm

Denis

Member Since: 28 Dec 2010
Location: prairie
Posts: 58

engine blanket - some non flammmable material

Click image to enlarge Puma 110

11th Feb 2012 6:15pm

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