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I would think AN6 would about minimum for the gravity flow drain.
Al
Subject: [FlyRotary] Re: redrive oil return
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 ¼ 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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