Received-SPF: none
 receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net
From: Chris Barber <cbarber@texasattorney.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
CC: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Discovered another "Gotcha"
Thread-Topic: [FlyRotary] Discovered another "Gotcha"
Thread-Index: AQHMm1CaVPxHDVB6ZUaPc5wI3aw7rJWeahsy
Date: Sat, 5 Nov 2011 15:34:20 +0000
Message-ID: <B6392CF0-30E5-41C5-BE84-9DFB098113FB@texasattorney.net>
References: <list-5187082@logan.com>
In-Reply-To: <list-5187082@logan.com>
Accept-Language: en-US
Content-Language: en-US
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

Good catch.=20

Also, happy you posted. I had not received any post since Tuesday. I feared=
 I may have been kicked off the list for lack of profess giving the collect=
ive a bad name.=20

Whew.=20

Chris=20

Sent from my iPhone 4

On Nov 4, 2011, at 7:20 PM, "Mark Steitle" <msteitle@gmail.com> wrote:

> I thought I would share my latest revelation relating to my PP 20B rotary=
 engine. =20
>=20
> I've been chasing an oil leak near the rear of the engine, somewhere near=
 the flexplate/psru adapter.  (I once read that all rotaries leak oil and I=
'm beginning to believe them.)   Since this area is right above the radiato=
r, any leaking oil gets blown all over the place, making it very difficult =
to detect the source.  After much thought and many inspections, I felt pret=
ty sure that it was coming from the rear main seal, so I ordered a new seal=
 and o-ring.  Today, I removed the air filter, oil cooler, starter, prop, p=
sru, flywheel adapter, flywheel, BIG NUT, counterweight and finally the rea=
r bearing holder.  While inspecting the assy. I discovered I could spin the=
 seal in the counter-bore.  No wonder it was leaking... it was spinning in =
the hole.  And it was loose enough for me to remove the seal with nothing b=
ut my fingers. =20
>=20
> So, I installed the new seal (which was a nice press fit) along with the =
new o-ring and re-assembled the flywheel, psru, prop, etc.  I plan to test-=
run the engine tomorrow, but I'm confident that I've found the source of th=
e oil leak. =20
>=20
> While I inspected the seal during assembly, the seal looked like new so I=
 didn't replace it.  It probably wouldn't have hurt to lock it in place wit=
h a screw as suggested by Lynn.     =20
>=20
> AWTTW - Pay close attention to the little things.  ;-)
>=20
> Mark S.    =20