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Thread: Mann Hummel Provent 200 filter replacement, cleaning and after market options

  1. #11
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    Mann Hummel Provent 200 filter replacement, cleaning and after market options

    Quote Originally Posted by Tombie View Post
    More a sign of the more effective internal oil separating system.
    ...... or a defective Crankcase Depression Valve aka the ďengine breatherĒ that is fitted into Td5 turbo inlet hose.
    1999 build D2 TD5 AT, Mantec snorkel, 2" LRA spring lift, ARB on board air, CMM air ram CDL shifter, swag & gold pans .....

  2. #12
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    I just changed back to a mesh filter as I found that my oil leaks became worse with the fabric filter.
    I assume that this is because the crankcase pressure is greater with teh fabric filter. I washed it out at about 6KK but I think I will stick with the mesh.

    Regards Philip A

  3. #13
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    I didn't know that the Provent and also the clones like mine have a depression valve in the lid.
    I removed the lid today and there it was.
    IMHO 2 depression valves are one too many, so I pried open the lid and removed the depression valve from it.
    I replaced my depression valve sometime ago so I will see how it goes.
    If you have a Provent , I recommend you remove one or the other valves. IMHO I would remove the Provent valve as AFAIK the specs are unknown.
    Regards PhilipA

  4. #14
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    Quote Originally Posted by PhilipA View Post
    I didn't know that the Provent and also the clones like mine have a depression valve in the lid.
    I removed the lid today and there it was.
    IMHO 2 depression valves are one too many, so I pried open the lid and removed the depression valve from it.
    I replaced my depression valve sometime ago so I will see how it goes.
    If you have a Provent , I recommend you remove one or the other valves. IMHO I would remove the Provent valve as AFAIK the specs are unknown.
    Regards PhilipA
    The Provent valve is aligned to its capacity.

    The one on the intake is aligned to the engines original design - the very one you added a Provent to remove issues from.

    Replace the intake one with a brass elbow and off you go.

    Now you may still have too much pressure as youíre combining 2 unknowns.
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
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    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

  5. #15
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    Now you may still have too much pressure as youíre combining 2 unknowns.
    I am afraid I cannot see it myself. With the steel filter there would be minimal resistance so IMHO the valve would just see it as it has always been.

    I don't care which depression valve is removed , suit yourself.

    But can you provide the specs of the Provent one? You know manifold depression for closing? Or for those who have clones, what the depression specs are for the clones?

    The purpose of the post was to alert those who didn't know that there was an extra depression valve , like me before someone posted to look at the lid.
    Regards PhilipA

  6. #16
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    Mann Hummel Provent 200 filter replacement, cleaning and after market options

    Itís in the bloody spec sheet.... and Itís been discussed in the endless threads on Provent unitís.



    Several of us posted images showing installation.

    ***The one in the lid you removed - is a relief / bypass valve.
    Itís there to open when the pressure between the filter element is too great.

    The depression valve is in the side unit......

    Youíve removed the wrong device!!!! Mann Hummel Provent 200 filter replacement, cleaning and after market options
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

  7. #17
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    OK I have checked and the valve in the lid of my clone is definitely a depression valve.
    So The Provent is different although my clone is of a 100 or Flash Lube job.
    As you can see the exit to Manifold is in the centre IMG_1364.JPG
    The spring holds up the diaphragm, vacuum from the manifold pulls the diaphragm down into the centre hole.

    Regards PhilipA
    So if you have a genuine Provent 200 remove one of the valves, either the stock one or THE ONE ON THE SIDE.
    EDIT AGAIN. The Provent 100 is the same as my clone the depression valve is in the lid. SOURCE Mann Hummel site.

  8. #18
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    Thank you for clarification.

    A portion of your problem is likely that the unit is undersized for that application.

    The 100 size isnít suitable for the TD5
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

  9. #19
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    Tombie, if you look on the net there are lots of places selling Provent 100Kits for engines bigger than 2.5 litres and with far higher outputs than a lowly TD5.
    Besides , with a second battery, there is just no room for a 200. I posted pictures of my installation some time ago.
    I do not have a problem with the filter at all. I just like to tinker and test things.
    IMHO it is bad practice to have 2 versions of the same thing in one circuit, particularly if you don't know what the specs on the opening depression etc.
    Regards PhilipA.

  10. #20
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    Thatís the difference between reading a product page and knowing how to work it out. The 100 isnít suitable for the TD5, especially if you have excessive blow-by.

    I can appreciate the tinkering, I canít work out your logic for why 2 will be a problem - if theyíre both working.

    The fact you have problems with the correct filter media in place indicates a flow/capacity restriction.
    Cheers
    Tombie

    Gone - D1 AZZKIKR - 5.0L Supercharged with the lot
    Gone - Tombraider Defender - Lara
    Gone - D2 TD5

    D4 MY11
    - Just about the way I want it.
    D90 MY15 - Just about the way Mrs Tombie wants it.
    Cancelled the new order...

    And for those fun times:
    2007 Suzuki M109R Boulevard Limited - 1800cc of V-twin goodness
    2020 Suzuki Katana - 1000cc of pure mayhem - Just Send It

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