Mailing List lml@lancaironline.net Message #34369
From: Robert R Pastusek <rpastusek@htii.com>
Sender: <marv@lancaironline.net>
Subject: RE: [LML] Quick oil drain
Date: Mon, 06 Feb 2006 09:15:00 -0500
To: <lml@lancaironline.net>
Mark asks:
Has anyone installed the quick oil drain from Aircraft Spruce on a IV-P? If so, are there any problems ?
 
Mark,
As you've probably discovered, the drain plug on the Continental 550 sits about 1/4 to 1 inch above the nose gear linkage when it's retracted--depending on configuration, engine mounting location, and other factors such as settling of the engine mounts. In most installations there is not sufficient room to install a "standard" oil quick drain. We tried one of the "low profile" drains on Jim's airplane, but there wasn't room for that either. I really like the quick drain idea--if you use one with a positive closure cap, and am planning to move the oil drain in the bottom of the pan off to the side just a bit so it won't sit directly on top of the nose gear linkage.
 
You'll need to do a retraction test, with the nose gear doors disconnected, to determine how much space you have to work with, but no matter what you see, be sure to allow for the engine to move around on it's mounts. Perhaps some of the folks on the list have empirical data, but it seems to me that 1/2" of clearance in all directions from the static/resting position is about a minimum?
 
Based on looking at a number of IV-P's, I'd be surprised if you have enough space to install a quick drain in the existing plug location.
 
Bob
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