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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
Can heavy rain or car wash splash wet the air filter?
Hi Everyone,

I am driving a Defender Puma 2.2 110. Where I am, we get a huge amount of heavy rain each year. The rig was fitted with a LR (mantec styled) RAI on stock air filter box and pipes. After driving in a very heavy rain, my air filter got wet and it ripped (check lights on and limp mode). The mechanic told me that water may have been sucked in via the air intake like a straw and trapped thereby wetting the filter.

1. Does the reasoning sound right or is it just an excuse for poorly fitted air intake filter lid?
2. If I remove the RAI (I don't really need it for the dust) will heavy downpour or carwash splash be a problem for the Air Intake filter?

Looking forward to any help/comments.
Post #915094 2nd Aug 2021 6:02am
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Leamreject



Member Since: 19 Dec 2020
Location: Middle Earth - Leamington Spa
Posts: 957
Italy 2011 Defender 90 Puma 2.4 HT Fuji White
Hi, a little odd but some pictures of you air intake might help Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do…
2011 2.4 Puma 90 HT
Post #915096 2nd Aug 2021 6:55am
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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
Hi Leamreject,
Here it is.
Post #915100 2nd Aug 2021 7:29am
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ginjez



Member Since: 18 Sep 2011
Location: huddersfield
Posts: 1751
2011 Defender 90 Puma 2.4 ST Santorini Black
You may get a better response if you post in the Puma section. Spraying water directly upwards in to RAI will ultimately find its way downhill
Post #915101 2nd Aug 2021 7:29am
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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
Hi Leamreject,
Here it is.


Click image to enlarge
Post #915102 2nd Aug 2021 7:29am
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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
Can heavy rain or car wash splash wet the air filter?
Hi Everyone,

I am driving a Defender Puma 2.2 110. Where I am, we get a huge amount of heavy rain each year. The rig was fitted with a LR (mantec styled) RAI on stock air filter box and pipes. After driving in a very heavy rain, my air filter got wet and it ripped (check lights on and limp mode). The mechanic told me that water may have been sucked in via the air intake like a straw and trapped thereby wetting the filter.

1. Does the reasoning sound right or is it just an excuse for poorly fitted air intake filter lid?
2. If I remove the RAI (I don't really need it for the dust) will heavy downpour or carwash splash be a problem for the Air Intake filter?

Looking forward to any help/comments.


Click image to enlarge
Post #915104 2nd Aug 2021 7:31am
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markb110



Member Since: 22 May 2010
Location: Guildford
Posts: 2525
England 2002 Defender 90 Td5 HT Epsom Green
Do you still have the ‘sump’ water dump valve in place.

I have heard of the issue you mention with Freelander 2’s that then sucked the paper into the turbo.

All those bends that LR have as standard slow incoming water down so it should collect then get dumped under its own weight assuming no upwards pressure as you would if wading.
Post #915139 2nd Aug 2021 12:29pm
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JMG



Member Since: 16 Apr 2014
Location: Surrey
Posts: 222
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Stornoway Grey
I had exactly the same setup and exactly the same problem, the RAI now removed along with the reoccurring wet filter problem. Bin the bloody thing.
Post #915153 2nd Aug 2021 2:34pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3214
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
I thought that the air box would cyclone the air, forcing the water out by centripetal force. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #915172 2nd Aug 2021 4:43pm
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Pacha



Member Since: 23 Feb 2020
Location: North Yorkshire
Posts: 772
United Kingdom 2008 Defender 90 Puma 2.4 HT Stornoway Grey
If it's a standard airbox then it's unlikely. Rgds.

Chris
Post #915179 2nd Aug 2021 6:20pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3214
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
See this thread... first picture shows what looks like a fan. It is there to spin the air. I am sure my 2.2 box has water drains.

https://www.defender2.net/forum/topic293.html 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #915194 2nd Aug 2021 8:00pm
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Julie



Member Since: 07 Oct 2017
Location: Nantes
Posts: 421
France 2012 Defender 110 Puma 2.2 SW Keswick Green
Exactly the same configuration and no problems. Heavy rain while overtaking lorries.
The car is LHD i.e. the RAI on the right hand side is really nearby the lorries while overtaking.

But you shouldn't blow any water inside the RAI while washing it. That's for sure.
Post #915314 3rd Aug 2021 2:43pm
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Matt110



Member Since: 29 Jun 2014
Location: UK
Posts: 673
United Kingdom 
Standard vehicle (puma) and standard air box, and every filter I've ever taken out of it has shown wet staining on the edge of it. My brother's is the same. His is heavily modified air path with snorkel and ally tubing to the standard air box. Same issue.
Post #915493 4th Aug 2021 7:31pm
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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
JMG wrote:
I had exactly the same setup and exactly the same problem, the RAI now removed along with the reoccurring wet filter problem. Bin the bloody thing.


It's damn strange! Now I removed it and am using the KBX side grill. Just wondering how susceptible to heavy downpour or road splashes.
Post #915718 6th Aug 2021 3:25am
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jonchongg



Member Since: 02 Aug 2021
Location: Central
Posts: 9
Singapore 2016 Defender 110 Puma 2.2 HT Montalcino Red
Pacha wrote:
If it's a standard airbox then it's unlikely.


Yes it is a standard airbox.
Post #915719 6th Aug 2021 3:26am
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