Mailing List flyrotary@lancaironline.net Message #14877
From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Acceptable oil pressure
Date: Wed, 05 Jan 2005 21:44:45 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Re: [FlyRotary] Acceptable oil pressure On 1/5/05 9:26 PM, "John Slade" <sladerj@bellsouth.net> wrote:

Leon and anyone else who cares to comment...

The remaining question with my installation is whether the oil pressure is acceptable, or whether something actually wrong.
Everything has been triple calibrated now, so I'm pretty sure of the following readings.....

Start-up at 70F ambient gets me 80 - 85PSI.  Once the oil gets hot I'm seeing about 15 or so at idle, 25 PSI at 2000 rpm, 45 PSI at 3500 rpm, and maybe 60 PSI at 4000.  Talking about today with Tracy he felt it was marginal, and was wondering if this might be normal with a combination of a turbo and a redrive both taking pressure.  Other possible causes he suggested were Ed's spinning shaft syndrome or air being sucked by a leaking oil pickup.

I hate to remove the engine (again) to check these items.

What do people think? Anything else I can check?

John (no more soot on the prop)


Did you check the oil metering pump connection as we discussed at my hangar?
Buly
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