Today's Message Index:
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1. 12:12 AM - Re: Oil in exhaust, Rotax 914 ()
2. 02:06 AM - Re: Oil in exhaust, Rotax 914 (Frans Veldman)
3. 02:58 AM - static and pitot wing connectors (Frans Veldman)
4. 04:33 AM - Re: static and pitot wing connectors (G-IANI)
5. 07:00 PM - Re: static and pitot wing connectors (rampil)
6. 09:49 PM - panel electrics (Fred Klein)
Message 1
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| Subject: | Oil in exhaust, Rotax 914 |
I concur with Bob, Had exactly the same problem on start up after a long period
of not being used, Even last winter lay up for maintenance aprox 2 months, She
through out some oil then settled down,
Ivor
---- Robert C Harrison <ptag.dev@tiscali.co.uk> wrote:
>
> Hi! Frans,
> I had a similar problem on first engine run. I actually siphoned about 1/4
> litre of oil from the muffler after the initial run.
> I think there could also be a matter of inhibitor discharge. I think the
> consensus will be run it further and get it up to normal operating temps and
> it will clear and reseal the ceramic seals.
> Regards
> Bob Harrison G-PTAG
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of Frans Veldman
> Sent: 21 October 2009 15:53
> To: europa-list@matronics.com
> Subject: Europa-List: Oil in exhaust, Rotax 914
>
>
> Hi everyone,
>
> Today, after some months of working on the airplane, I decided to start
> the engine again. I noticed some time ago that the bottom of the turbo
> was a bit "wet". The engine ran fine (and for the first time without
> overheating during the long ground session), but after the succesful
> test I noticed that the exhaust had blown quite some oil away. There was
> a dark spot on the ground where the exhaust points to, and the port
> wheel was soaked with oil.
> The inside of the exhaust was dry, so the oil came out early in the
> session. The oil was not burned, I assume it came out of the turbo.
>
> Now, I would like to know whether it could (hopefully) be somewhat
> normal that after a few months of non operation the turbo seeps full
> with oil, and on engine start this oil is thrown out of the exhaust.
> If this is not normal, what is involved with fixing this?
>
> Almost flying, but new issues come up faster than I can solve them... :-(
>
> Frans
>
>
>
>
>
>
>
>
>
Message 2
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| Subject: | Re: Oil in exhaust, Rotax 914 |
ivor.phillips@ntlworld.com wrote:
>
> I concur with Bob, Had exactly the same problem on start up after a
> long period of not being used, Even last winter lay up for
> maintenance aprox 2 months, She through out some oil then settled
> down, Ivor
Thanks (to you and the other repliers) for the reassurance that my
engine is not broken. One item more I can take off my to-solve list.
Frans
Message 3
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| Subject: | static and pitot wing connectors |
Hi everyone,
I thought to be smart and ordered from RS the "upgraded" versions of the
standard Europa static and pitot connectors. These are not floating but
have a thread and nut so I can fix them on the fuselage. As a bonus (I
thought) they have an automatic valve that closes when they are not
connected, so no moisture or bugs can creep in.
So far so good. The system is leak free (as tested with a syringe to
simulate pressure changes), over a couple of hours indications of ASI
and altitude didn't change.
However, I noticed now that with the wings disconnected, when the
ambient temperature or pressure changes, the instruments start to
indicate airspeed and altitude values, because the pressure inside the
static and pitot system can not vent. Of course the pressure difference
will leak away over a couple of days, but the leak rate of the pitot and
static are not equal so in the mean time weird things happen.
One thing that concerns me is what would happen when the pressure in the
pitot is lower than in the static port: the ASI would want to indicate a
negative value. This will happen when the ambient pressure increases and
the leak rate of the static port is higher than the pitot.
Should I abandon the idea of using the connectors with automatic valves?
Or should I intentionally introduce a small leak between static and
pitot so ambient pressure changes will not wreck havoc with the
instruments? Has anyone else a similar setup?
Frans
Message 4
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| Subject: | static and pitot wing connectors |
Frans
I have the self sealing version of these connectors on my fuel lines. These
are only used to remove the filters for cleaning.
My feeling was that they are something else to fail so I did not use them on
the pitot and static. I would not want to introduce a controlled leak
between pitot and static.
Ian Rickard G-IANI XS Trigear, 280 hours
Europa Club Mods Rep (Trigear)
e-mail g-iani@ntlworld.com
Message 5
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| Subject: | Re: static and pitot wing connectors |
The magnitude of usual weather changes will not harm your instruments.
Bugs in the tubing would be far worse. You made the right choice.
I near never disco the wings, so I use the Winter 5 hose connector
which is not self-sealing.
Ira
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=269001#269001
Message 6
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If there's anyone out there who has opted for using the EXP BUS II DC
Load Center, has a copy of Bob Nuckoll's book, "The AeroElectric
Connection", and has a fair understanding of the electric side of this
adventure we're on, I'd be ever so appreciative if you could contact
me off list so I could get some really basic questions answered...I
feel like the village idiot. I'm finding Nuckoll's book informative,
particularly because he has an overall schematic (Z-19) for a "Dual
Battery, Single Alternator, Electronic Controlled Fuel Injected Engine".
(I know, I know...a stock Rotax installation would be way easier for
me.)
Fred
A194
eatin' the elephant, one bite at a time...
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