Mailing List flyrotary@lancaironline.net Message #15346
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: Need Advise
Date: Mon, 17 Jan 2005 14:11:38 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Rusty, can you give details of how you sealed the oil filler hole in the picture? I need to do something like this.  
 
 Wendell 
 
Hi Wendell,
 
I was afraid someone was going to ask this :-)  
 
Clearly what is needed here is a metric hose barb fitting, with M12 x 1.75 threads, but amazingly I couldn't find one :-)   Basically, I went to the hardware store, with the goal of making something work.  The best I could some up with was a metric allen bolt that fit the threaded hole.  It turns out that the allen that fits this is fairly large, and an 1/8" NPT (I think) hose barb would almost screw into the hole in the top of the bolt head.  I drilled about a 1/8" hole down the length of the bolt, then "installed" the hose barb into the top of the bolt head.   As I recall, I tried tapping the head of the bolt for 1/8" NPT thread, but I don't remember that being very successful.  In the end, I believe I JB welded the hose barb in place.  Fortunately, it's just a vent, and not all that important if it falls apart.  Since I have it all apart, I could maybe find a steel hose barb (rather than the brass one), and weld it in place.  
 
Rusty (you'll be afraid to ask next time I bet) 
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster