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Larry;
Locating an oil leak can be one off the most frustrating jobs. If the mag is leaking, it could show up on the prop. If a pushrod tube is leaking, it could show up on the tail! Crazy! You didn't say if the O/H was done at the factory, an engine shop or from the fellow in the corner hangar. The one thing that comes to mind after an o/h is the accessories, I would start my search there. Try to locate the most concentrated oil (the dirtiest part) of the engine, not the airframe, and have a look at the obvious. (Look hard at the tach cable and attachments.) Wash the engine down and heavily spray the area with foot powder and fly it a few minutes. The foot powder will show any oil streaking, much like tracks in the snow. You may not get it the first time, but remember it's all logical, there are no Halloween ghosts out there squirting oil on the engine.

Al
www.ercoupeowners.com/coupegroup/swappage.html
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----- Original Message ----- From: "Larry Snyder" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, October 31, 2006 4:37 AM
Subject: [COUPERS-TECH] Oil on side of cowl


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Ever since i bought my Ercoupe when I fly a slight trail of oil appears on the left side of the lower cowl (on the outside). Even after the engine was rebuilt it still does it. I'm having my mechanic look at it. Any ideas of where this could be coming from, particularly since the engine did it before and after a major overhaul?

Thanks,

Larry
N99340
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