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1198 Dirty Airbox

Discussion in '848 / 1098 / 1198' started by simiansmythe, Apr 21, 2015.

  1. Just carrying out a 6000miles fluids service and after removing the air filter looking in the air box there is a good amount of dust around the edges and bottom. The bell mouths appear clean so I have wiped round with a wet microfibre cloth. I thought about adding some draught excluder to around the faces of the filter so when the covers go back on then it should seal better. I have heard of this on the new ktm 1190 but not really on ducatis. Anybody else seen this? The bike was last dealer serviced at around 4k.
     
  2. Although new to Ducati Ownership, I recently removed the air filter on my 1198 & was shocked to see the amount of crap in the bottom of air box. Have now installed a pair of MWR filters.
     
  3. I replaced my filter with a BMC washable type. At the time I was shocked at the amount of crap that had got into the "clean" side.

    The K&N & BMC have better edge seals which is where the standard filter is left wanting a little.

    If going BMC make sure you get the one for your preferred use. They do a a Hi Flo race & a road version. I think the K&N type is only available as the one type.
     
  4. Happens a lot, dirt going past the filter and lining the airbox. A lot of people just fit the draft excluder around the edges.
     
  5. Excellent, I will do the draught excluder trick, any preference on colour or make???
     
  6. Hi, I've run most filters out there, the only one that keeps the inside of my airbox spotless is the MWR individual filters.

    K&N with it's extra end seals wasn't too bad but all the rest let loads of dirt past. If you don't wan't to change filters,spray an oil based chain lube on the inside surface of the airbox to trap dirt that gets ingested as it tends to bounce of the inside surfaces first, but you'll have to clean the airbox regularily.

    Jamie

    image.jpg
     
    • Like Like x 1
  7. The issue with dirt in the airbox is well known indeed, as described also here:

    * [1] Scary images with lot of dirt:
    https://bradthebikeboy.blogspot.com/2010/12/8481098-ducati-performance-air-filters.html
    (posted above by Chris already)

    * [2] Proposed solution with a single K&N filter having extra gasket/seal:
    https://www.ducati.org/forums/1098-1198/22142-air-filter-replacement-cleaning-2.html

    * [3] Same problem on an 848:
    https://www.ducatiforum.co.uk/threads/airbox-clean.70626/

    My airbox had some dirt too (but far less than in [1]), and in my case the leak did not occur only between the filter and the manifold (i.e. the intake duct), but at also between the airbox and the manifold. This was clear by observing the dirt traces while disassembling the parts.
    To see what I mean with these parts, see the picture at
    https://www.bike-parts-ducati.com/d...198/AIR-INDUCTION-x-OIL-BREATHER/120/40/0/120

    The solution proposed in [2] using a single filter would not have worked for me therefore. The solution using a pair K&N filters mentioned in the post above would have worked, but I did not want to spend the money and to risk having a different air flow resistance caused by a different filter (which could have affected the air/fuel ratio on my bike which has lambda sensors disabled).

    I opted therefore to build my own gaskets/seals, as shown in the images below. On each side, one gasket seals the gap between manifold and filter, the other seals the gap between the manifold and the airbox.
    For 7EUR, I bought a raw air filter foam mat from Louis and cut it myself:
    https://www.louis.de/artikel/variante/luftfilter-matte-universal-750x500x14mm/10050855

    I include a blueprint of the manifold with a 10cm reference scale which can be useful to cut out the parts before taking apart the bike. I hope this can be useful for somebody.


    The inner gasket:

    1_inner_part.jpg

    The outer gasket:
    2_outer_part.jpg

    The blueprint (see attached pdf for printing correct scale):
    0_blueprint.jpg
     

    Attached Files:

    #8 luke1198, Nov 3, 2019
    Last edited: Nov 3, 2019
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