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loss of oil.

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aholt11552(at)bellsouth.n
Guest

Posted: Mon Jan 08, 2007 1:13 am Post subject: loss of oil.

[quote] ---

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ptag.dev(at)tiscali.co.uk
Guest

Posted: Mon Jan 08, 2007 4:51 am Post subject: loss of oil.

Hi! Arthur  

In the absence of any other advices from anyone else to get you “on your way” I can advise that I had a similar problem on a 3300 engine in that the “o” ring was inclined to squeeze out so that when you removed the cooler  “dohnut” the “o” ring had some extrusion like marks. Firstly I made sure that the “o” ring was lightly greased on fitment to ensure it doesn’t roll up as the filter canister is tightened. This did stop the leaks generally but I was hesitant to over tighten the canister. Latterly I redesigned the system entirely making the oil cooler selectable and meterable. This utilised a slightly thicker “donut” to enable the application of standard adapter screw in fittings with doughty washers sealing them on spot facings on the “donut” perimeter. This gave me the opportunity to slightly reduce the “o” ring groove depth after that I never had a problem except I did tighten it more than hand tight.  

I would suggest (without liability!) that you have 0.005” skimmed off that side of the “donut” and if that doesn’t work another similar slice but no more than 0.010” total. This will increase the nip on the “o” ring.  

Have fun !  

Regards  

Bob Harrison.  

     

Robt.C.Harrison  

  

   

-----Original Message-----

 From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of Arthur Holtzman

 Sent: 08 January  2007 09:12

 To: jabiruengine-list(at)matronics.com

 Subject: Re: JabiruEngine-List: loss of oil.  

     

   

  [quote]    

----- Original Message -----   

    

From: Dave (ieadave(at)hotmail.com)   

    

To: jabiruengine-list(at)matronics.com (jabiruengine-list(at)matronics.com)   

    

Sent: Sunday,  January 07, 2007 10:57 PM  

    

Subject: loss of oil.  

    

   

  

Has anyone experienced the loss of oil at the oil cooler adaptor housing O ring? I’m new to flying with a Jabiru engine. My Indus Thorepedo has only  30 hours on a 2200 engine. I experienced a loss of oil due to a faulty or undersized  O ring on the oil cooler adapter. In addition I am a little concerned about how the whole oil filter assembly is attached to the engine block. It seems to me that the entire assembly is dependent on twisting the oil filter in place. It appears that the force of the torque on the filter carries through the oil cooler adaptor. It is the compressed  O ring face against the block that holds the oil cooler adaptor assembly in place. When the leak became evident it was possible to hand twist the oil cooler adaptor about a 1/8 of a turn at the engine block.  Jabiru just sent me a replacement adaptor to be installed and needless to say I’ll be checking the attachment during preflights and  keeping a close watch on the gages in flight.  

   

Dave Sneddon  

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agbeyer(at)sbcglobal.net
Guest

Posted: Mon Jan 08, 2007 5:07 am Post subject: loss of oil.

Dave,

  

 I have a 3300 that has been in the air for two years.  I had the same thing happen.  The groove was too deep that holds the "O" ring.

 I chucked the adaptor in a lathe and turned off about .010" from the back side to increase the squish on the "O" ring.  I have done this to a couple of others also, and now they don't leak.  I also put a hose clamp around the base of the oil filter with the screw for the clamp to the front.  I safety wire the screw to the clamp and then wire the clamp up to the oil press. sender to keep it from rotating.

  

 AL from Oshkosh

  

  

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