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Air Filter Element for FBH
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kim0785b
 


Member Since: 12 Feb 2021
Location: London
Posts: 141

United Kingdom 2015 Discovery 4 3.0 SDV6 SE Auto Santorini BlackDiscovery 4
Air Filter Element for FBH

Hi there! thanks of the invaluable resource and thanks to the forum I've managed to get the FBH working!

I've noticed there is an air filter element (little cylindrical black box) that is attached to most LR3 FBH but not on the LR4 units. I've read that it is a noise suppressing component for the air intake filter.

Is this necessary? does adding one to an LR4 FBH impede the airflow rate? is it an issue having this intake pipe exposed to the elements?
 Discovery 4
Oct 2015, 2016 build
SDV6 Santorini Black SE
New engine at 42k
Car camper 
 
Post #23637707th Mar 2024 8:23 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8243

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

I pinched the one off my D3 and fitted it to the D4 about 5 years ago, never had any problems or touched it since. Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #23638027th Mar 2024 2:11 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5065

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Fitting one will not impede air flow, it's just an empty plastic cylinder without filtration.
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23638047th Mar 2024 2:15 pm
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HairyFool
 


Member Since: 04 Jan 2023
Location: North Essex
Posts: 704

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto ZanzibarDiscovery 4

A larger cylinder with smaller In and Outlet ports makes a good filter for sand etc. The air slows down after entry which allows the heavier particles to drop out into the bottom before the air carries on. It needs to be positioned with the outlet higher up.

Even better is a centrifugal filter which spins the air making the particles heavier so miss the central outlet port. With no filter element there is nothing to clog up. They just need emptying every so often

Its not unusual to find sand and grit to be in the bottom of the engine filter case which is not just because it has been impeded by the filter.
 A visitor from the dark side, my other vehicle is an is still an EV. Strictly speaking its SWMBO.  
Post #23638237th Mar 2024 3:32 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5065

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

There's no filter, it's just an air intake noise suppressor. The combustion chamber develops lots of carbon build up on its own, particularly during short run cycles.

Therefore a filter would be pointless, which presumably is why there isn't one. Thumbs Up
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23638277th Mar 2024 4:18 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8243

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Just a silencer, but I don’t notice any difference Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #23639699th Mar 2024 11:56 am
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