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From: "Perry Mick" <pjmick@mail.viclink.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: redrive oil return
Date: Sun, 26 Sep 2004 12:46:05 -0800
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What size is everyone using? The inlet to the redrive is 1/8" NPT and the
exits are two 1/4" NPT.

On Sun, 26 Sep 2004 20:29:18 +0000, Kelly Troyer wrote
> Perry,
>   I think the AN-4 fitting could be somewhat restrictive to return
> oil flow to the pan......IMHO
> 
> --
> Kelly Troyer 
> Dyke Delta/13B/RD1C/EC2 
> 
> -------------- Original message from Perry Mick : -------------- 
> That engine mount hole in the center housing is 12mm x 1.5mm thread.
> 
> http://www.anplumbing.com/shop/index.php?shop=&dept=Aluminum
> 
> part #9919BFG is a 12-1.5 metric to AN4 aluminum adaptor.
> How about just drilling through the iron and installing one of 
> these? No tapping required.
> 
> Joe Hull wrote:
> 
> Paul-
> If you’re looking for a new home for your PSRU oil drain; I found it 
> was really easy to drill through one of the engine mount holes on 
> the plugs side for my oil return.  The existing stud hole sizes are 
> just shy of the Ľ NPT we need and the holes are above the oil level. 
>  I put my return into the bottom-rear hole (see picture). 
>  
> This of course assumes you aren’t using the engine mount area for 
> something strange…like your engine mount ;-)
>  
> Joe Hull
> Cozy MkIV #991 (working on Engine & Electrical & Finishing)
> http://www.maddyhome.com/canardpages/pages/JoeHull/index.html
>  
> 
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] 
> On Behalf Of paul Sent: Sunday, August 29, 2004 7:23 PM To: Rotary 
> motors in aircraft Subject: [FlyRotary] Re: redrive oil return, was 
> Re: New Cooling Setup
>  
> Hey, Steve....thanks for the pictures.  Since I already have the 
> aluminum plate covering the oil metering pump, it would be easy to 
> drill and tap that.  After hearing what Rusty had to say, I'm not 
> sure if I might be better off leaving it as is.....Need to ponder 
> this one.  Thanks for taking the time to share your pictures, and I 
> hope your cooling temps get under control so you can just go fly and 
> enjoy the fruits of your labor.  Paul Conner, 13b powered SQ2000
>  
> ----- Original Message ----- 
> From: Steve Brooks 
> To: Rotary motors in aircraft 
> Sent: Sunday, August 29, 2004 10:17 AM
> Subject: [FlyRotary] Re: redrive oil return, was Re: New Cooling Setup
>  
> Here are a couple of photos of mine.   
>  
> Steve Brooks
>  
> -----Original Message-----
> From: Rotary motors in aircraft 
> [mailto:flyrotary@lancaironline.net]On Behalf Of Russell Duffy Sent: 
> Sunday, August 29, 2004 10:30 AM To: Rotary motors in aircraft 
> Subject: [FlyRotary] Re: redrive oil return, was Re: New Cooling Setup
>  
> Hi, Rusty....My 13b has an aluminum plate covering the old injection 
> pump location. Do I just drill and tap for an NPT fitting in the 
> plate covering the old pump? 
>  
> Ooops, I just remembered that I'm actually returning to the turbo 
> oil drain location on the front cover, and not the injector pump 
> location.  When I took the turbo off, I just made an aluminum cover 
> plate with a hole tapped for 1/4" NPT.   
>  
>  You don't by chance have an old picture lying around that shows 
> your plate and/or fitting going into the engine do you? 
>  
> Amazingly, I don't have a picture that shows it.      
>  
>  My return line presently goes to the oil pan, but to drain the oil, 
> I have to first remove the PSRU drain line. It would be better to 
> run it to the oil oil injection location.  Thanks for the info.  
> Paul Conner 
>  
> I ran my oil drain to the oil pan plug location on the original 
> engine.  This violates the rule of returning oil below the level of 
> oil in the pan, but it worked fine.  Having to remove the PSRU drain 
> line to drain the oil was the best part of that system.  I left the 
> line free, so I could remove it at the redrive, then lower it toward 
> my catch pan to drain the oil.  It was totally mess-free.  I miss 
> that now, especially when I have to drain a little oil to make up 
> for the pre-mix scavenging.
>  
> Rusty
>    
>  
> 
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html


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