Today's Message Index:
----------------------
1. 06:53 AM - Normal oil pressure indications (AirMike)
2. 07:04 AM - TruTrak Display issue - panel planning (AirMike)
3. 07:13 AM - Re: Normal oil pressure indications (Kelly McMullen)
4. 07:22 AM - Re: Normal oil pressure indications (Tim Olson)
5. 10:44 AM - Re: Normal oil pressure indications (Lew Gallagher)
Message 1
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| Subject: | Normal oil pressure indications |
I was showing quite high (96 psi) oil pressure indications in climb out. (I never
take off till the oil hits 100 degrees)
I adjusted it to indicate 86 psi in high power mode. Is this too high or it it
acceptable?
Would somebody tell me what is normal at
run-up - climb - cruise
I am using break-in oil
--------
OSH '10 or Bust
Q/B - finally done
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=301734#301734
Message 2
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| Subject: | TruTrak Display issue - panel planning |
My digiflight II -VS has an LCD screen that has gone wierd. The nice people at
TruTrak are replacing it under warranty and are aware of the problem - apparently
a manufacturers defect. They have new debugged and better displays that they
are installing. The defect does not affect the operation of the unit (which
I love), but it is obvious that the display will not get better so I am returning
it to them for repair.
My point in making this post is that I positioned my D-II-VS in the left hand corner
of my panel which made it relatively easy to replace. If it were on top
of the stack or above the EFIS I might have had to pull the whole panel to get
at it. Keep in mind that it also has pitot and static connections on it.
--------
OSH '10 or Bust
Q/B - finally done
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=301735#301735
Message 3
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| Subject: | Re: Normal oil pressure indications |
It is hard to put a number on the oil pressure, because Lycoming and Cessna
have been playing with the numbers. There is an old issue, particularly with
4 cylinder Lycomings that the pax side of the engine gets less oil to the
valve rocker box area and tends to have more valve stem distress. So for the
current 172, the oil pressure pick-off point was changed, and as a result
that engine is running over 100 psi measured at the older location. Unless
you are leaking or blowing a gasket, there really isn't a too high number.
Ideally, you probably want above 30 for taxiing in with engine hot, above 60
in climb and cruise. Many Lycomings have middle of green around 65-75 psi,
but it really isn't a number to get too obsessed about. I'd leave it where
you have it, see what numbers you get when the engine is hot and what you
see after landing. Make the lowest indications high enough for comfort and
don't worry too much about the high end.
That said, from the Lycoming O/IO-540 operator's manual: "Oil pressure
maximum 95, minimum 55, idling 25, startup and warm up 115."
On Sat, Jun 19, 2010 at 6:52 AM, AirMike <Mikeabel@pacbell.net> wrote:
>
> I was showing quite high (96 psi) oil pressure indications in climb out. (I
> never take off till the oil hits 100 degrees)
>
> I adjusted it to indicate 86 psi in high power mode. Is this too high or it
> it acceptable?
>
> Would somebody tell me what is normal at
> run-up - climb - cruise
>
> I am using break-in oil
>
> --------
> OSH '10 or Bust
> Q/B - finally done
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=301734#301734
>
>
Message 4
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| Subject: | Re: Normal oil pressure indications |
Personally, I'd have left it where it was.
Tim Olson - RV-10 N104CD
do not archive
On 6/19/2010 8:52 AM, AirMike wrote:
> --> RV10-List message posted by: "AirMike"<Mikeabel@Pacbell.net>
>
> I was showing quite high (96 psi) oil pressure indications in climb out. (I never
take off till the oil hits 100 degrees)
>
> I adjusted it to indicate 86 psi in high power mode. Is this too high or it it
acceptable?
>
> Would somebody tell me what is normal at
> run-up - climb - cruise
>
> I am using break-in oil
>
> --------
> OSH '10 or Bust
> Q/B - finally done
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=301734#301734
>
>
Message 5
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| Subject: | Re: Normal oil pressure indications |
Hey Mike,
We just did the same thing. First flight with break in oil tripped the high
oil pressure warning at climb out -- probably wasn't warmed up enough.
Second flight was into the yellow on climb out, but no warning message. Wes
wasn't comfortable with it on the edge like that, so we took a washer out of
the oil pressure spring seat, and that was better. Last week we changed out
the break in oil for the regular multi viscosity, and now with the heat of
summer, the indicator is just above the center of the green -- AFS system.
Sorry I don't have the pressure, temp, viscosity, etc. just wanted to let
you know that the "real" oil and OAT made a difference.
Later, - Lew
----- Original Message -----
From: "AirMike" <Mikeabel@Pacbell.net>
Sent: Saturday, June 19, 2010 9:52 AM
Subject: RV10-List: Normal oil pressure indications
>
> I was showing quite high (96 psi) oil pressure indications in climb out.
> (I never take off till the oil hits 100 degrees)
>
> I adjusted it to indicate 86 psi in high power mode. Is this too high or
> it it acceptable?
>
> Would somebody tell me what is normal at
> run-up - climb - cruise
>
> I am using break-in oil
>
> --------
> OSH '10 or Bust
> Q/B - finally done
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=301734#301734
>
>
>
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