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Thread: Which oil quick drain ?

  1. #1
    blue44's Avatar
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    Default Which oil quick drain ?

    Anyone like to recommend a particular oil quick drain ? Seems like the Curtis CCB-37000 - https://www.aircraftspruce.com/catal...squickdv36.php - is about right for the Clipper ( O-235 ) but I'm open to suggestion... Cheers, Donn

  2. #2
    rideandfly's Avatar
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    Default Re: Which oil quick drain ?

    Donn,

    Just installed a FAA/PMA approved Saf-Air Oil Drain Sump Valve on the Vag's C85 to replace the leaking Aeroquip unit. During annual last month the A&P recommended the Saf-Air unit because the o-ring could be replaced and the Aeroquip unit could not. Saf-Air is lower cost compared to Aeroquip, too.

    https://www.aircraftspruce.com/catal...rainValves.php
    Last edited by rideandfly; 04-11-2019 at 11:01 AM.
    Bill
    48 PA-17 Vag C-85

  3. #3
    smcnutt's Avatar
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    Default Re: Which oil quick drain ?

    Quote Originally Posted by rideandfly View Post
    Donn,

    Just installed a FAA/PMA approved Saf-Air Oil Drain Sump Valve on the Vag's C85 to replace the leaking Aeroquip unit. During annual last month the A&P recommended the Saf-Air unit because the o-ring could be replaced and the Aeroquip unit could not. Saf-Air is lower cost compared to Aeroquip, too.

    https://www.aircraftspruce.com/catal...rainValves.php
    Saf-Air is the one we have. Never had a problem with it.

  4. #4

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    Default Re: Which oil quick drain ?

    Quote Originally Posted by blue44 View Post
    Anyone like to recommend a particular oil quick drain ? Seems like the Curtis CCB-37000 - https://www.aircraftspruce.com/catal...squickdv36.php - is about right for the Clipper ( O-235 ) but I'm open to suggestion... Cheers, Donn
    That particular valve is for fuel. The Curtis oil drain is a different design to allow a gasket between the oil sump and the valve. https://m.aircraftspruce.com/catalog...elflocking.php
    "Good judgement comes from experience, and experience comes from bad judgement." - Fred Brooks

  5. #5
    6PapaWhiskey's Avatar
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    Default Re: Which oil quick drain ?

    Quote Originally Posted by Jeff J View Post
    That particular valve is for fuel. The Curtis oil drain is a different design to allow a gasket between the oil sump and the valve. https://m.aircraftspruce.com/catalog...elflocking.php
    While the more expensive valves are great, the CCB-3700 is listed as a "Lycoming Oil Drain Valve" with FAA-PMA certification on the Curtis web site: http://www.curtissuperiorvalve.com/o...in-valves.html

    I have one on my O-235-L2C and it works fine. I used a bit of Loctite 567 on the threads before installation.

    I also had a similar Curtis drain valve on my previous aircraft (Rotax 912 ULS engine) after replacing the Saf-Air valve that began leaking shortly after installation. The Curtis valve worked much better and didn't leak after 400+ hours with 25-hour oil changes.

    Tom P.
    Wagabond @ 08A

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    Administrator Steve Pierce's Avatar
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    Default Re: Which oil quick drain ?

    The O-235-C1 engines I have worked on did not have a place in the sump for a quick drain. I ended up drilling the large suction screen plug and taping it to accept a pipe thread and the quick drain valve. I have been using the Safe-Air P5000. You can replae the o'rings in the Safe-Air valves unlike the Curtis.

  7. #7

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    Default Re: Which oil quick drain ?

    Quote Originally Posted by 6PapaWhiskey View Post
    While the more expensive valves are great, the CCB-3700 is listed as a "Lycoming Oil Drain Valve" with FAA-PMA certification on the Curtis web site: http://www.curtissuperiorvalve.com/o...in-valves.html

    I have one on my O-235-L2C and it works fine. I used a bit of Loctite 567 on the threads before installation.

    I also had a similar Curtis drain valve on my previous aircraft (Rotax 912 ULS engine) after replacing the Saf-Air valve that began leaking shortly after installation. The Curtis valve worked much better and didn't leak after 400+ hours with 25-hour oil changes.

    Tom P.
    Wagabond @ 08A

    Then I shall stand corrected even though I couldn't get their link to the certification to open this morning.

    If you had the Curtis specified valve for the Rotax then it was a little different design allowing for the crush gasket.
    "Good judgement comes from experience, and experience comes from bad judgement." - Fred Brooks

  8. #8

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    Default Re: Which oil quick drain ?

    I looked up the PMA on the FAA website:

    Part Name:
    Oil Drain Valve Assembly
    Part Number:
    CCB-37000
    Replacement For:
    61879-002
    Make/Model:
    Piper (Piper Aircraft Models, PA-23-250, PA-28-140, PA28-150, PA-28-151, PA-28-160, PA-28-161, PA-28-180, PA-28-181, PA-32-260, PA-32-300, PA-31P-350, PA-32-301, PA-32RT-300, PA-32RT-300T, PA-32-301T, PA-32R301/301T, PA-32-301FT, PA-34-200, PA-36-300, PA-36-375, PA-38-112, PA-46-310P, PA-46-350P, PA-46R-350T)
    FAA Approval Basis:
    Identicality without a licensing agreement per 14 CFR 21.303 Dwg. No. CCB-37000 Rev. G Date 9/15/15 or later FAA approved revisions
    Responsible Office:
    Phoenix AZ FAA Office Tel: (480) 419-0330
    Supplement Number:
    1
    Supplement Date:
    11/18/2015
    This approval issued to:
    Curtis Superior Valve Co Inc
    PMA Holder Number:
    PQ05319NM
    PMA Holder's Address:
    2330 S. Airport Blvd #1
    ChandlerAZ85286
    United States

    If I understand it correctly, while I am sure it works great, the 37000 drain would not be "correct" to use on the Clipper (minor alteration?). The only PMA'd drain I see from Curtis to install on an O-235 is the CCB-38000.
    "Good judgement comes from experience, and experience comes from bad judgement." - Fred Brooks

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