Today's Message Index:
----------------------
1. 07:54 AM - Oil in exhaust, Rotax 914 (Frans Veldman)
2. 09:04 AM - Re: Oil in exhaust, Rotax 914 (Pete Lawless)
3. 01:28 PM - Re: Oil in exhaust, Rotax 914 (Robert C Harrison)
Message 1
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| Subject: | 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: | Oil in exhaust, Rotax 914 |
Hi Frans
I have no experience of the 914 but do own a turbo charged Twin Com. The
seals on the turbo are made by burning oil. When the turbos were changed
the oil leak into the exhaust was alarming. A leak also happens when the
engines are not run for a few weeks (like now when the Government have
screwed our economy and Stirling does not by much in Europe!). As soon as
the engines are flown the problem goes away.
So without knowing the individual engine I would guess your oil leak will
clear with running.
Regards
Pete
-----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
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
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Message 3
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| Subject: | Oil in exhaust, Rotax 914 |
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
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
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