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haavard-iversen(at)c2i.ne
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PostPosted: Sun Feb 26, 2006 11:46 pm    Post subject: M14-p Reply with quote

Me and my friend have been opertaing our Yak during wintertime now, operating the engine below 5 degrees Celsius, even down to -5. STarting the engine really hasn´t ben difficult, but have learned that you should not without pre-heating. We have drained for oil every 3 days without a flight, turning 20 blades before priming and another 10.
After the last flight at Saturday, we notice some oil dripping out of the exhaust imediatly after shut down.(maybe a teaspoon  full)
That we didn´t like much! How common is this? May this be a sign of a minor hydraulic lock, with bent engine parts?
Since the cold weather, we also needed to prime some nicks while starting, to get it to fire properly and run. Is there a chance of overpriming causing damage?
 
Please advise, and from only those serius guys!
 
Thanx!
 

Håvard N. Iversen
Televeien 14A
2020 skedsmokorset
mobil: +47 928 93 546
www.yaknorway.com
e-mail: haavard-iversen(at)c2i.net (haavard-iversen(at)c2i.net)
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tedwaltman(at)i1ci.com
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PostPosted: Mon Feb 27, 2006 5:56 am    Post subject: M14-p Reply with quote

Hello,
 
Very common to have oil drip from exhaust.  In fact, I see such maybe 98 times out of a hundred.  Absolutely normal.  Sometimes I see quite a bit of oil; sometimes hardly any.
 
Yes, you can get hydolock from over priming.  I have a manifold drain that I installed off of #4, #5 and #6.  So, in cold weather in particular, I prime the heck out of it, sometimes seeing fuel dripping out of my manifold drain--in which case I know it is fully primed.  As long as you carefully pull the blades through after priming to check for restriction you're Ok.
 
Ted Waltman
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