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ACRO E-mail Archive Thread: Oil Loss, Was: [IAC] Low Oil Pressure

Thread: Oil Loss, Was: [IAC] Low Oil Pressure

Message: Oil Loss, Was: [IAC] Low Oil Pressure

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From: Larry Willson <larrwill at ptd.net>

Date: Tue, 21 Jul 1998 13:12:58 UTC

Message:

  This brings to mind a similar question I have.
I recently replaced my Pitts S1S with a Pitts S1T. I do not have any oil
pressure problems but the T uses much more oil than the S did. With the
T I go through about a quart every three hours. I was thinking this
might be due to the inverted system needing an overhaul. Is it likely
that this would be the problem or would I experience an oil pressure
drop if the inverted system were in need of an overhaul. 

Thanks, Larry Willson
 
Dave Pilkington wrote:
> 
> How long are these vertical down lines?
> Aviat has a kit for O/H of the inverted oil system - maybe its just that
> time to replace springs etc.
> ----------------------------------------------------
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> 
> -----Original Message-----
> From: Stephen Seidel <theshack at planet.net>
> To: IAC Exploder <iac at lists.handmadesw.com>
> Date: Tuesday, 21 July 1998 11:54
> Subject: [IAC] Low Oil Pressure
> 
> >I am currently flying a Factory built 1979 Pitts S2a Which employs a Lyc
> >IOE360/200 and have had a  recurrent low oil pressure problem under
> >certain conditions.
> >
> >On a vertical downline following a Hammerhead to the left from upright,
> >the oil pressure dips to and once below 30psi with a noticable reduction
> >in engine sound as if the throttle had been suddenly reduced. After pull
> >out and recovery the pressure goes back to normal.
> >This is the only attitude that causes this problem so vertical downs are
> >out until I get a grip on the cause.
> >
> >During Uplines, sustained inverted flight, knife edge and outside
> >maneuvers the pressure remains in the green.
> >If I have a problem with the Christen inverted system or anywhere
> >else....... knowing where to look would be helpful.
> >
> >Thanks
> >
> >Straight and Level in NJ
> >
> >

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