Mailing List flyrotary@lancaironline.net Message #66431
From: Bobby Hughes BHughes@qnsinc.net <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Sump Breather?
Date: Mon, 2 Nov 2020 22:17:11 +0000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Steve,

 

It was a Paul L oil pan with integrated rear mount. So may be 6-7” 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.

 

Bobby

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Monday, November 02, 2020 3:55 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Sump Breather?

 

Hi Bobby.

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.

Was there a good deal of gasses escaping through that vent Bobby?
I take it the boost pressure might exaserbate the problem.

I’m concerned that at times I’m 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’t given it any thought till now, but pondering this oil usage.
Ive seen no signs of oil seal leakage.

Cheers

Steve





> On 2 Nov 2020, at 10:19 pm, Bobby Hughes BHughes@qnsinc.net <flyrotary@lancaironline.net> wrote:
>
> sceet tube


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