From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Sump Breather?
Date: Tue, 3 Nov 2020 06:29:21 +0800
References: <list-895096@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-895096@logan.com>
Message-Id: <EDB59DA9-0008-4835-AF58-6DFE2F81A9D6@gmail.com>

Thanks Bobby.
What factors influenced your choice of oil?
I had wondered if the thermal properties varied much between oils.

Steve


> On 3 Nov 2020, at 6:17 am, Bobby Hughes BHughes@qnsinc.net =
<flyrotary@lancaironline.net> wrote:
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> Steve,
> =20
> It was a Paul L oil pan with integrated rear mount. So may be 6-7=E2=80=9D=
 deep. The super charger was likely causing most of the vapor/oil I =
would find in the sceet tubing. Venting at the center iron may not the =
best location. I settled on 20-50W V-Twin synthetic motorcycle oil. No =
indication of foaming and I always made oil.
> =20
> Bobby
> =20
> =20
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20=

> Sent: Monday, November 02, 2020 3:55 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Sump Breather?
> =20
> Hi Bobby.
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> Are you using the renesis oil pan?
> I seem to remember the renesis had a plastic manifold that I thought =
in combination with the pan worked to reduce foaming and oil loss out of =
the sump.
> I thought the use of synthetic oil may also play a roll in reducing =
the oil loss via a breather.
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> Was there a good deal of gasses escaping through that vent Bobby?
> I take it the boost pressure might exaserbate the problem.
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> I=E2=80=99m concerned that at times I=E2=80=99m seeing a small oil =
level drop between flights were previously the level grew as a result of =
the oil added to the fuel ending up in the sump.
> With only a small 3/16 vent that shows no sign of oil exiting I =
hadn=E2=80=99t given it any thought till now, but pondering this oil =
usage.
> Ive seen no signs of oil seal leakage.
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> Cheers
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> Steve
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> > On 2 Nov 2020, at 10:19 pm, Bobby Hughes BHughes@qnsinc.net =
<flyrotary@lancaironline.net> wrote:
> >=20
> > sceet tube
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> --
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