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Bulent,
An additional point........Both the turbo and redrive are feeding relatively tight
tolerance (spell Restrictive) bearings so pressure loss should be minimal.....The
oil pump has excess capacity (volume) to make up for the extra loss.....FWIW
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from Bulent Aliev <atlasyts@bellsouth.net>: --------------
> Thanks Ed. That makes me feel normal again :)
> Buly
> On Dec 1, 2005, at 9:56 PM, Ed Anderson wrote:
>
> > Bully, I run 20-50 synthetic and 3000 rpm makes me 50 PSI, cruise
> > at 5600-6000 makes 70 psi. That's what it has been since day one
> > regardless of using mineral oil or synthetic. On really hot days
> > right after take off oil pressure may decrease to around 65 psi
> > until the oil temps cool down.
> >
> > Ed
> > ----- Original Message ----- From: "Buly"
> > To: "Rotary motors in aircraft"
> > Sent: Thursday, December 01, 2005 11:18 AM
> > Subject: [FlyRotary] OIL PRESSURE
> >
> >
> >> I was thinking about the oil pressure readings that Lynn
> >> recommended. On our turbo engines we have actually two relieve
> >> holes: One is the turbo lubrication which is tapped into the
> >> engine oil pressure and the other end is basically open ended to
> >> the oil pan. The other one is the PSRU lubrication system. Also a
> >> 1/4" relieve tube that takes oil pressure from the system and it
> >> is open to the oil pan. Doesn't that lower the overall oil pressure?
> >> My engine at 3000 rpm makes about 50-55 psi OP with 15-40 oil. So
> >> I wander if it is adequate? I know if I run 20-50 it will be higher.
> >> Buly
> >>
> >> --
> >> Homepage: http://www.flyrotary.com/
> >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
> >
> >
> > --
> > Homepage: http://www.flyrotary.com/
> > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
>
>
> --
> Homepage: http://www.flyrotary.com/
> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
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