D special oil bath air filter
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Thread: D special oil bath air filter

  1. #1
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    Default D special oil bath air filter

    At the risk (yet again) of demonstrating ignorance, can I ask advice on cleaning the oil bath air filter? Soak in petrol to clean, I assume. Then air dry. But then just how much oil should be used before returning the element to the housing? Soak it? A cup full? A few drops?

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    Quote Originally Posted by ajaxvte View Post
    At the risk (yet again) of demonstrating ignorance, can I ask advice on cleaning the oil bath air filter? Soak in petrol to clean, I assume. Then air dry. But then just how much oil should be used before returning the element to the housing? Soak it? A cup full? A few drops?
    If you are referring to the circular metal filter for the 5 main engines it is operation DX 171-3 from Manual 518. Basically the factory just wanted you to soak the filter in gasoline, blow dry with compressed air and then immerse fully in oil. Remove and let it drip dry. OTOH a lot of owners, myself included, have replace the original metal air filter with a replaceable paper unit - ones made for a Nissan Pulsar work a treat.

    If referring to the earlier style filters found on the 3 main engines it is, again, operation DS 171-3 but in manual 465. The procedures differ depending on the model of filter involved.

    Steve

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    The early style air filters for 3 main engines can also be replaced with a paper element from a 1965-69 Porsche 912 (Fram CA 4594 or equivalent).

    Although it is possible he may be referring to the true oil bath filter (e.g Reynolds P 127)
    Last edited by citroenthusiast; 28th March 2016 at 03:55 AM.
    Cheers,
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    Ok, thanks. It is a later model with the circular metal filter.

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    This is the first i've heard about replacing the circular metal oil bath filter with a paper element replacement from a Nissan Pulsar? Does the paper element fit into the DS air filter canister without modification? Does anyone have a model number for that filter? Thank you!
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    Hello, in the UK, I've ordered FRAM CA5279. This fits exactly, after you have snipped off a small locating lug on the outer rim. It has a hole or two in the central plastic crown that need fitting with blanking grommets.

    I also found that the rubber sealing ring needs to be glued to one half or the other, or grow another pair of hands.

    I managed to buy 4 of them for £1.50 each from ebay

    New Air Filter CA5279 Nissan Primera 1.6 Petrol | eBay

    Here's another one I bought as a trial run

    Nissan Sunny, Pulsar, Primera (1989 on) *New* Air Filter Fram CA5279 | eBay

    You can see the little lug I had to snip off

    My car is a 1974 DSuper5

    Peter

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    thank you @badabec
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    Quote Originally Posted by pynhead View Post
    This is the first i've heard about replacing the circular metal oil bath filter with a paper element replacement from a Nissan Pulsar? Does the paper element fit into the DS air filter canister without modification? Does anyone have a model number for that filter? Thank you!
    A NAPA 6190 fits quite nicely. All you have to do is plug the two holes in the plastic face (top). Have seem them for as little as $6 on Ebay.


    D special oil bath air filter-screen-shot-2016-03-28-4.47.07-pm.png

    Steve

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    Might I ask, what is the advantage of using a paper filter?
    Michael

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    Quote Originally Posted by MichaelCox View Post
    Might I ask, what is the advantage of using a paper filter?
    Michael
    Hi and welcome to the forum Michael . . .

    Probably convenience would be the biggest advantage, 2 minute job to change over to a new clean filter.

    If you are doing a service on your car which includes cleaning and oiling the factory air filter you'll spend some time cleaning, drying with compressed air, soaking in oil and draining before refitting.

    You can take that process a step further and dismantle the filter for a proper clean, see here.

    Citroën DS/ID and XM Web-Site

    Citroen Restoration - Citroen DS - View Restoration Area

    I guess it depends on driving conditions how far you go with maintenance, pulling the filter apart is a little extreme in my opinion, but once the welds have been removed the rubber will hold the unit together on reassembly and the clamps on the housing will keep it all together until the next service.

    Personally I stick with the OEM metal filter and just give it a quick wash, oil and refit. For the driving I do, I don't see the need to pull it apart.

    Cheers
    Chris
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    Depending on the ambient temperature and viscosity of the oil, the excess can take weeks to stop draining away. You'll probably find oil pooling in the bottom of the filter, so maybe wipe it out after a few weeks.

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    Quote Originally Posted by David S View Post
    Depending on the ambient temperature and viscosity of the oil, the excess can take weeks to stop draining away. You'll probably find oil pooling in the bottom of the filter, so maybe wipe it out after a few weeks.
    Indeed! To the point of the excess finding its way down the inlet pipe, and dripping out onto the manifold... the smell of smoking oil had me wiping out the filter canister a couple of times. Now that the car is parked up for the week, I'll check before driving it again!

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    Quote Originally Posted by MichaelCox View Post
    Might I ask, what is the advantage of using a paper filter? Michael
    Good filtration and easy to change are quite enough for me. Modern technology has its places. We could start a debate about the filtration merits of properly maintained oil bath filters vs modern paper elements, but I have no reason to go there myself.

    There are paper cartridges that fit a surprising range of old filter canisters, not least my 1951 Renault 4CV.

    I've often wondered if there's an easy way of doing this for the CX.
    JohnW

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    Quote Originally Posted by ajaxvte View Post
    Indeed! To the point of the excess finding its way down the inlet pipe, and dripping out onto the manifold...
    That's the 'bath' part of the function!
    addo and ajaxvte like this.

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    Quote Originally Posted by MichaelCox View Post
    Might I ask, what is the advantage of using a paper filter?
    Michael
    The real 'advantage' is that it does get changed - fast and easy. Filtration ability is the same or better. The real problem with the oil bath unit is that a lot of them never got cleaned and re-oiled on a timely basis. I have got some 140,000+ miles on my 72's rebuilt engine - has had that Nissan element its entire life. When it is time to renew a quick trip to the local auto parts store for a replacement. Opening the hood is almost the most time consuming part of the whole process.

    Personally I would not go back to the original filter on a bet. Not that it is inferior - just a PITA to service properly. And while I have no empirical proof, I feel that it improves air flow a bit. But that could also be just wishful thinking .

    Steve

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    Quote Originally Posted by Citroenfan View Post
    The real 'advantage' is that it does get changed - fast and easy. Filtration ability is the same or better. The real problem with the oil bath unit is that a lot of them never got cleaned and re-oiled on a timely basis. I have got some 140,000+ miles on my 72's rebuilt engine - has had that Nissan element its entire life. When it is time to renew a quick trip to the local auto parts store for a replacement. Opening the hood is almost the most time consuming part of the whole process.

    Personally I would not go back to the original filter on a bet. Not that it is inferior - just a PITA to service properly. And while I have no empirical proof, I feel that it improves air flow a bit. But that could also be just wishful thinking .

    Steve
    We don't quite have that convenience Steve, the Nissan model mentioned wasn't sold here and I believe the model sold in the USA would have differed anyway to comply with your design rules. Upshot is that filter would have to be purchased out of the USA. . .

    The price seems to have more than doubled since I last looked (maybe 12 months or so ago), so more like US$15 - 20.00, plus freight, this example on ebay is US$21.00 plus US21.00 postage.
    Air Filter WIX 46190 | eBay

    For those wanting to go down the paper filter path, maybe a group buy. This supplier has more reasonable prices if they will deal with an OS order.
    Wix 46190 & Napa 6190 Air Filter: FleetFilter Secure Store - Wix, Fram, Baldwin, Luberfiner

    I'll stick with the OEM, only cost is oil every 12 -18 months. . .

    Cheers
    Chris
    74 D(very Special) >>Rejuvenation Thread<<
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    The Déesse has all the characteristics of one of those objects fallen from another universe that fed the mania for novelty in the eighteenth century and a similar mania expressed by modern science fiction: the Déesse is first and foremost the new Nautilus.

    (Umberto Eco [Ed], The History of Beauty, Rizzoli, NY, 2004)

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