Mercury Air-Actuated Drain System
+ Reply to Thread
Results 1 to 3 of 3

Thread:
Mercury Air-Actuated Drain System

  1. #1
    Member PDQH2O's Avatar
    Join Date
    Aug 2008
    Location
    The OC
    Posts
    97

    Default Mercury Air-Actuated Drain System

    On the Mercruiser Gen VI 496 MAG with closed loop cooling, there are four connectors (appear to be quick disconnect) fittings at the manifold on top, two on port and two on starboard (at the sea water and power steering pumps). Need to find out how to reconnect the air hoses. Are the connectors disposable? Since I never use the air-actuated drain system, can the boat be used with the air hoses disconnected?

    Here are a couple of photos that might help illustrate my questions.The first pic is the top side of the seawater pump housing. The second is of the air system manifold located at the top front of the engine. The ring on the top of the white connectors are spring loaded. That tells me that they are some type of quick-connect fittings. However, when I insert the green or grey air hose, the fittings do not seem to grab and seal the hose. Any idea how these connectors/fittings work?




    Last edited by PDQH2O; 04-05-2011 at 09:21 AM. Reason: Photo added

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Canoe Jockey Michael Thomas's Avatar
    Join Date
    Jul 2008
    Posts
    1,130

    Default

    The fittings that you have are really pretty simple and are very common. They are known as "instant tube fittings". These things can screw up. The ring is the release collar, when pushed in they release...somethimes installing the hose will push the collar down. When I install them I hold the collar up as I insert the tube. If you have to replace them, places like Mc Master Carr, Clippard or any air control parts houses. The fittings are offered also in brass, chrome/brass. This is just my 2 cents..But I hope it helps you
    "If you can't dazzle them with brilliance...Baffle them with bullshit"

  4. #3
    Member PDQH2O's Avatar
    Join Date
    Aug 2008
    Location
    The OC
    Posts
    97

    Default

    Thanks for the response. Originally, I suspected that your description is how they should work.However, I could not get the fittings to lock onto the tubing. Ended up pulling the fuel block off to gain access to the fittings on the seawater pump. Once I could get to the fittings, the tubes were locked in nice and tight. Guessing that the fittings were sticking in the open position and bumping them while removing the fuel block must have allowed the fittings to clamp the tubes. All is put back together now, and we'll be testing the boat out this Friday.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95