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danny shepherd
Joined: 27 Jan 2006
Posts: 117
Location: north Wales, United Kingdom
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 Posted: Mon Sep 22, 2008 10:35 am Post subject: oil problems |
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Hi All,
Last Saturday my test pilot started the ground testing. He
carried out the taxi checks, bedded in the brakes, did a fast taxi down
the runway, all the t's and p's perfect. Oil pressure 4 bar, The engine
ran quite cool, (no signs of over heating) All together he ran the
engine for about 45 minutes. When he taxied back to the hangar the
engine dumped most of the oil on the tarmac. Rather worrying!! We took
off the cowls and every thing looked o k. The pipes are correct (the
right orientation) and there are no kinks in them. So far the engine has
run for nearly four hours with no problem. Has anyone else had similar
problems? does anyone have any suggestions ?. It was going to have it's
maiden flight next Saturday, but !!!!!!!!!!
Cheers Danny (worried)
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rampil
Joined: 04 May 2007
Posts: 870
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| Posted: Mon Sep 22, 2008 10:51 am Post subject: Re: oil problems |
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Dan
what was the source of the leak? was it from the overflow line or
from someplace oil should not be seen externally.
Also, how much oil literally. Does you "most" really mean most
of 3 liters?
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Ira N224XS |
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ptag.dev(at)tiscali.co.uk
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| Posted: Mon Sep 22, 2008 11:25 am Post subject: oil problems |
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Hi! Danny
You don't say what engine.
I have a 914 and initially it blew about half a litre of oil and
condensate through into the muffler I understand the turbo oil seal is
ceramic and this is to be expected on initial runs.
Regards
Bob Harrison G-PTAG
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danny shepherd
Joined: 27 Jan 2006
Posts: 117
Location: north Wales, United Kingdom
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| Posted: Mon Sep 22, 2008 11:35 am Post subject: oil problems |
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Ira,
We think it was from the overflow line. There was a smear of oil
round the engine. It's taken over 2 lts to top it up again.
Danny
rampil wrote:
| Quote: |
Dan
what was the source of the leak? was it from the overflow line or
from someplace oil should not be seen externally.
Also, how much oil literally. Does you "most" really mean most
of 3 liters?
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5538#205538
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s(at)vestuti.orangehome.c
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| Posted: Mon Sep 22, 2008 12:40 pm Post subject: oil problems |
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Hi Danny,
where did the oil leak/blow from?
steve #573
Visit - www.EuropaOwners.org
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danny shepherd
Joined: 27 Jan 2006
Posts: 117
Location: north Wales, United Kingdom
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| Posted: Mon Sep 22, 2008 1:48 pm Post subject: oil problems |
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Steve,
We think it blew back out of the overflow pipe. I'll probably
take the a/c back home for further investigation.
Danny
steve v wrote:
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ptag.dev(at)tiscali.co.uk
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| Posted: Tue Sep 23, 2008 12:40 am Post subject: oil problems |
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Hi! Danny
Just had a thought....did you pressure bleed the oil system to eliminate
any air pockets as per Rotax instructions?
Sounds like air expanding in the system has caused an "overfill
scenario"?
Regards
Bob Harrison G-PTAG
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danny shepherd
Joined: 27 Jan 2006
Posts: 117
Location: north Wales, United Kingdom
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| Posted: Tue Sep 23, 2008 2:18 am Post subject: oil problems |
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Bob,
Yes I did, but did I do it right!! When you think about it I have run the engine for three hours myself with no problems. Thinking about it last night in bed (as one does) I could only come up with idea that there has to be a kink in the return from the engine to the tank. The oil hoses are protected with fire sleeve, which makes it hard to see any kinks. I'll bring the a/c back latter this week and change the hose.
Thanks for all the replies. Danny G-CERI
Robert C Harrison wrote: [quote] [quote]--> Europa-List message posted by: "Robert C Harrison" <ptag.dev(at)tiscali.co.uk> (ptag.dev(at)tiscali.co.uk) Hi! Danny Just had a thought....did you pressure bleed the oil system to eliminate any air pockets as per Rotax instructions? Sounds like air expanding in the system has caused an "overfill scenario"? Regards Bob Harrison G-PTAG --
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