---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Wed 10/21/09: 3 ---------------------------------------------------------- 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 _____________________________________ Time: 07:54:17 AM PST US From: Frans Veldman 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 _____________________________________ Time: 09:04:10 AM PST US From: "Pete Lawless" Subject: RE: Europa-List: 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 -- This message has been scanned for viruses and dangerous content by Houxou, and is believed to be clean. Checked by AVG - www.avg.com 18:42:00 ________________________________ Message 3 _____________________________________ Time: 01:28:30 PM PST US From: "Robert C Harrison" Subject: RE: Europa-List: 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.