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Date: Fri, 26 Jun 2009 13:55:50 -0700
From: Dale Rogers <dale.r@cox.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Oil leaks
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Christopher Barber wrote:
> I really cranked the filter down tonight, however, it is still 
> leaking.  I guess I will have to drain the system and more closely 
> inspect the mounting base.  It is not leaking from the surrounding 
> hoses, but seeping...well seeping in a pretty large amount from the 
> seal on the filter at the mounting base.
>
> Would a small bead of silicone cause a problem I am unaware of.  Of 
> course, I would rather it just work right.  Sigh.

Chris, I'm late getting into this, and there are still 37 messages to 
read yet, but in case no one else has mentioned it ...

You may want to get another filter.  You could try putting a straight 
edge across the gasket/o-ring, to see if it is truly flat; if the 
underlying end cap is warped, it will never seal.  Standard practice is 
to lube the ring and hand-tighten 3/4 of a turn after the gasket touches 
the mount point without wobbling.  Check the mating surface of your 
filter mount for dings or scratches; the ring won't fill a deep scratch 
that straddles the contact circle.  I've also seen the ring/gasket roll 
over or twist in the groove; that's a no-go, too.

HTH,
Dale R.
COZY MkIV #0497 (third owner)
Ch. 13
http://members.cox.net/rogersda/Products.htm