No updates for a very long time, but it's there.


Jeff Whaley jwhaley@datacast.com <flyrotary@lancaironline.net> wrote:

> Thank You all for the replies; at least I know FlyRotary still has a pulse.
>I can no longer access the <flyrotary@lancaironline.net> website directly,
>but I get The Digest which is a collection of all correspondence from the
>previous day; not great but better than nothing.
> I don't think ethanol in the gasoline plays much of a role inside the
>reduction drive and I'm using Hi-Test unleaded, which last time I checked has
>zero ethanol in it up here in the Great White North. The O-Ring is the
>original one spec'd and installed by Tracy (Real World Solutions). I found a
>source (Sterling Seal and Supply) via Amazon for a 351 Buna/Nitrile Rubber
>O-Ring, spec'd for fuel and oil with a temperature rating of -30F to 250F;
>Nitrile Rubber without Buna is sepc'd to only 212F.
> This morning, I found the leak by slightly pressurizing the redrive with
>air; using soap and water it was easy to see it leaking around the cap screws
>that hold the Ring gear in place. I removed the drive and after disassembly
>on the bench, I found that all 8 of those cap screws were loose as a goose.
>I'm going to buy a small pipe cleaner and using lacquer thinner will clean up
>the threads and then I'll apply some Loctite before reassembly.
> Jeff Whaley
> 260 hrs: 13B NA, RD-1C
>
> -----Original Message-----
>From: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Sent: Wednesday, July 23, 2025 6:01 AM
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Subject: flyrotary Digest #5478
>
>        Rotary motors in aircraft Digest #5478
>
> 1) RD-1C Oil Leak and Ring Gear Retainer O-Ring
>    by "Jeff Whaley jwhaley@datacast.com" <flyrotary@lancaironline.net>
> 2) Re: RD-1C Oil Leak and Ring Gear Retainer O-Ring
>    by "David COOK hoursaway1@comcast.net" <flyrotary@lancaironline.net>
> 3) Re: RD-1C Oil Leak and Ring Gear Retainer O-Ring
>    by "David Walker drw.aa@hotmail.com" <flyrotary@lancaironline.net>
> 4) Re: RD-1C Oil Leak and Ring Gear Retainer O-Ring
>    by "David COOK hoursaway1@comcast.net" <flyrotary@lancaironline.net>
>
> This digest is sent to you because you are subscribed to
>  the mailing list <flyrotary@lancaironline.net>.
> To unsubscribe, E-mail to: <flyrotary-off@lancaironline.net> To switch to
>the FEED mode, E-mail to <flyrotary-feed@lancaironline.net>
> Send administrative queries to  <flyrotary-request@lancaironline.net>
>
>
> -----Original Message-----
>From: Jeff Whaley
> Sent: Tuesday, July 22, 2025 7:32 AM
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Subject: RD-1C Oil Leak and Ring Gear Retainer O-Ring
>
> I have an oil leak at my RD-1C redrive.
> Took the drive off and noticed the large O-Ring was bulged out in one area
>between two mounting bolts.
> The RD-1C Manual/Parts List specs the O-Ring as 5.125" O.D. x .190" thick.
> Has anyone ever replaced this before and/or have a known source of where to
>obtain?
> Thanks for any feedback.
> Jeff Whaley