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Home > Off Roading & Green Laning > How deep can a LR2 go with a snorkel?
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

I wonder if the porous ducting could be replaced with something non-porous to reduce the likelihood that water leaks in through the ducting... The waiter drain in the in the air filter housing is a one-way valve so I'm not too worried about that.


Does anyone know of anything else to watch out for around 500-600mm? IE, where are the locations of the breathers for the diff, transmission and gearbox that Andy131 is talking about? Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118407 28th Oct 2011 8:41 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4640

The breather tubes have a quite ample "?" shape ending on the upper part and therefore doesn't pose a threat/danger of water entering. The static pressure will not let the water enter.

Post #118416 28th Oct 2011 9:04 pm
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

I just noticed this was previously discussed here: http://www.freel2.com/forum/topic600.html

I'm mainly just interested in knowing what the actual limits are and what it is one should be worried about when approaching (and exceeding) 500mm. Ie, at 505mm, what floods? It seems like the air intake is good up until about 700mm.

I personally have no interest in going swimming Shocked Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118422 28th Oct 2011 9:37 pm
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Andy131



Member Since: 10 Dec 2009
Location: Manchester
Posts: 2161

United Kingdom 

alex_pescaru wrote:
The breather tubes have a quite ample "?" shape ending on the upper part and therefore doesn't pose a threat/danger of water entering. The static pressure will not let the water enter.


I may be wrong ..... but as I understand it you will have a hot transmission will cool rapidily as it hits the water this will cause the air/fluid to contract. The contaction and expansion due to heat is the reason the breathers are there in the first place.

So putting an inline fuel filter on the end of the breather does seem a worthwile precaution - even if is isn't strictly necessary. Might even help in dusty environments?

Please excuse spelling but a few pints of "Old perculiar" can do that to a person. Tangiers Orange - gone, missing her
Replaced by Ewok what a mistake - now a happy Disco Sport owner

Post #118426 28th Oct 2011 10:42 pm
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

Hm, it looks like the transmission is already fitted with a remote breather. http://www.landrover.com/us/en/lr/about-la...rover-lr2/

Now going to try to research its location. Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118432 29th Oct 2011 1:48 am
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

There's a transmission breather that reaches up past the transmission and is found near the engine (1). There's also a rear diff breather (2) though I couldn't find a diagram of its exact location. It looks like it's that would be a pain to get to. Finally there's a breather in the fuel line (3). The fuel line breather snakes up to the fuel intake.

1: http://dl.dropbox.com/u/281/lr2/Transmissi...cation.pdf
2: http://dl.dropbox.com/u/281/lr2/rear%20diff%20breather.pdf
3: http://dl.dropbox.com/u/281/lr2/fuel%20breather.pdf

Not sure about the electronics... Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118433 29th Oct 2011 2:43 am
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JJJ



Member Since: 20 Oct 2011
Location: Pretoria
Posts: 16

South Africa 2008 Freelander 2 i6 HSE Auto Alaska White

Further to my previous post on the routing of the air intake, another view from the front with the plastic cover removed. The red clips hold the ECU in place, so this is as high as it could possibly be installed. The rectangular aperture behind it, is the air intake to the ventilation system.

Click image to enlarge


Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green

Post #118720 31st Oct 2011 8:13 pm
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

That's helpful, thanks.

It's still not clear where the 500mm comes from. It seems like an arbitary number. This weekend I'm going to have a look at all the intakes and measure their ground clearance. Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118828 1st Nov 2011 8:49 pm
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rchrdleigh



Member Since: 18 Aug 2007
Location: Somewhere in the East of England
Posts: 1601

England 2011 Freelander 2 TD4 XS Manual Baltic Blue

rchrdleigh wrote:
According to LR the Defender and Freelander 2 both have the same wading depth of 500mm.
However, one of them can wade deeper and it doesn't necessarily begin with a D?


SRO, the answer to your question can be found in the comment I made above. 500mm came from Land Rover. It is not an arbitary number it is carefully selected to match that of a Defender.

Post #118831 1st Nov 2011 9:15 pm
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sro



Member Since: 25 Oct 2011
Location: California
Posts: 68

United States 2008 LR2 i6 SE Auto Zermatt Silver

rchrdleigh wrote:

SRO, the answer to your question can be found in the comment I made above. 500mm came from Land Rover. It is not an arbitary number it is carefully selected to match that of a Defender.


Yah, thanks for your post. You're right that the number came from Land Rover. However I'm trying to reconstruct their decision since right now it feels arbitrary. It's not good enough for someone to tell me "that's just the way it is." Smile

For example, why is it 500mm and not 550mm? If I wade through 550mm, what do I risk damaging first? Installed a hitch, stock roof rack, mantec skid plates, General Grabbers AT2 255/60/R18, and a rear access ladder. Also made a hitch-mount for the winch. Looking to install a front hitch, rooft-top basket, and lift kit.

Tracking modifications and off-road experiences here: http://sam.odio.com/lr2/

Post #118833 1st Nov 2011 9:35 pm
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rchrdleigh



Member Since: 18 Aug 2007
Location: Somewhere in the East of England
Posts: 1601

England 2011 Freelander 2 TD4 XS Manual Baltic Blue

sro - pm sent

Post #118834 1st Nov 2011 9:39 pm
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BossBob



Member Since: 30 Sep 2010
Location: Bristol
Posts: 1266

England 2007 Freelander 2 TD4 GS Manual Baltic Blue

The wading depth won't just be the height of the various breathers, inlet, outlets and electrical components. It also depends on the speed that the vehicle is travelling at, vehicle load and if the engine is running. If the water might be deeper than 500mm the accepted way to deal with this is to set up a bow wave and try to stay in the shallower water just behind the crest. You also need to check out the water you're aiming to drive through for a suitable route avoiding the deepest spots and obstacles that might cause problems. The other rule is to not off road or wade alone.

Post #118849 1st Nov 2011 10:48 pm
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alex_pescaru



Member Since: 12 Mar 2009
Location: RO
Posts: 4640

sro wrote:
For example, why is it 500mm and not 550mm? If I wade through 550mm, what do I risk damaging first?

One of the things that are pretty low, is the alternator.
And, by construction, it's an open device because it has vents in both front and back.
This means that the water could easily reach the rotor's brushes.
And if the water is dirty, besides mechanical damages to brushes and colectors, it can create serious problems to its electrical regulating system...

The same with the starting motor, which also isn't a sealed unit.

Another low thing are the cooling fans. In a too deep water the cooling fans could be damaged by the impact between the propellers and the water itself. At the speed that the propelers rotate, the water could seem almost solid.

Not to mention about the thermal shock that a red hot turbo can have (after an intense off-road session) when entering a cold water stream. The turbo is also quite low positioned...

So reasons for those 500mm could be...

Post #118852 1st Nov 2011 11:10 pm
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MihaiB



Member Since: 30 Jun 2011
Location: Bucuresti
Posts: 137

Romania 2011 Freelander 2 SD4 HSE Auto Zermatt Silver

I believe the 500mm can also be quite a marketing number and allowing for a decent margin. If 500mm would be the actual limit and a LR2 owner would go through a 510mm water damaging something, it would get into quite a dispute with LR over the 10mm extra, if it was really there or not... Therefore, I would expect a 10% or even more margin allowed by LR when setting this limit.

As I (think I) mentioned, I read somewhere that one of the problems after 500mm is not really in parts being damaged, but more in a risk of the Freelander starting to float. Which would REALLY be a problem.

Post #118868 2nd Nov 2011 9:42 am
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npinks



Member Since: 28 Jun 2007
Location: Ls25
Posts: 20090

United Kingdom 



started to float and scramble at about 16sec in Shocked Former Mod/Member, with the most post & Chicken George Arch nemesis

Post #118871 2nd Nov 2011 10:07 am
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