Diesel Air inlet pipe?

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Alastair
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Diesel Air inlet pipe?

Post by Alastair » Thu Dec 24, 2015 12:37 am

Does anyone happen to know the function of the cardboard foam pipe that lets air into the air filter box on some diesels ( mines a 1700)? The one I have is past best to say the least... Are they still available or shall I take it off and throw away?
Bx turbo diesel 1989
Bx 1.9 Rd estate 1989
Citroen Light 15 1952
Bx 17 TZD diesel turbo 1992
Xantia 1.8 16v

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Tim Leech
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My Cars: 1963 VW BEETLE 1200 KGJ413A
1972 Morris Marina 1.8 SDL BFA720L
1979 Rover SD1 3.5 V8-S TSL 982
1980 Morris Marina 1.7HL DBV468W
1985 CITROEN BX 19GT C1TBX
1991 CITROEN BX 19TZI AUTO A/C BXi 19
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Re: Diesel Air inlet pipe?

Post by Tim Leech » Fri Dec 25, 2015 11:45 am

It funnels cold air into the engine, from the inner wing which the colder the air the fender it is and will give a better burn. I would try a and keep it in place of you can.
1963 VW BEETLE 1200
1985 BX 19GT Mk1
1991 BX 19TZI Auto A/C
1994 Xantia 1.8i SX
1972 Morris Marina 1.8 SDL
1979 Rover SD1 V8-S
1980 Morris Marina 1.7HL
2002 Rover 75 CDTi Connossieur SE AUTO Nav
2003 Rover 25 1.6i XL 5 DR

Alastair
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Re: Diesel Air inlet pipe?

Post by Alastair » Fri Dec 25, 2015 5:13 pm

It's just mines falling apart and I was wondering how critical it was noting it has foam inside and the odd hole here and there......so I could substitute it for something else ?
Bx turbo diesel 1989
Bx 1.9 Rd estate 1989
Citroen Light 15 1952
Bx 17 TZD diesel turbo 1992
Xantia 1.8 16v

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ken newbold
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Re: Diesel Air inlet pipe?

Post by ken newbold » Fri Dec 25, 2015 10:45 pm

If it's the one that runs from the wing to the air filter, it's not a problem, but if it runs from the air filter to engine you need to replace it.
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taksoft
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Re: Diesel Air inlet pipe?

Post by taksoft » Mon Dec 28, 2015 11:24 am

If you remove the paper pipe with foam inside, the suction noise will be definitely louder. There are small holes on that paper pipe, to have (or eliminate?) the air-spring effect in the pipe.
I had a plastic pipe without foam and holes, and as I have changed to the factory version, the noise reduced. No other benefits I realized.

Alastair
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Re: Diesel Air inlet pipe?

Post by Alastair » Mon Dec 28, 2015 9:32 pm

Out of a matter of interest are the factory ones still available and if so any idea on price?
Bx turbo diesel 1989
Bx 1.9 Rd estate 1989
Citroen Light 15 1952
Bx 17 TZD diesel turbo 1992
Xantia 1.8 16v

User avatar
Tim Leech
Over 2k
Posts: 15201
Joined: Tue Apr 15, 2008 11:12 am
Location: Burton on Trent
My Cars: 1963 VW BEETLE 1200 KGJ413A
1972 Morris Marina 1.8 SDL BFA720L
1979 Rover SD1 3.5 V8-S TSL 982
1980 Morris Marina 1.7HL DBV468W
1985 CITROEN BX 19GT C1TBX
1991 CITROEN BX 19TZI AUTO A/C BXi 19
1994 CITROEN XANTIA 1.8 SXi M908HRY
2002 Rover 75 CDT Connossieur SE Nav Auto R40TSL
2003 Rover 25 1.6i XL L33CHT
x 70

Re: Diesel Air inlet pipe?

Post by Tim Leech » Thu Dec 31, 2015 1:10 pm

You'll possibly find a new one on eBay or a rally, not available new from Citroen, last ones I saw available was £30.
1963 VW BEETLE 1200
1985 BX 19GT Mk1
1991 BX 19TZI Auto A/C
1994 Xantia 1.8i SX
1972 Morris Marina 1.8 SDL
1979 Rover SD1 V8-S
1980 Morris Marina 1.7HL
2002 Rover 75 CDTi Connossieur SE AUTO Nav
2003 Rover 25 1.6i XL 5 DR