ACRO E-mail Archive Thread: [Acro] How do I drain the engine oil?
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Thread: [Acro] How do I drain the engine oil?
Message: [Acro] How do I drain the engine oil?
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From: Klusmanp at aol.com
Date: Sat, 09 Nov 2002 06:04:31 UTC
The drain plugs on the oil pan on the O-360 in my Pitts S-1 have hoses attached as part of the Christen inverted oil system. There is no other convenient drain plug for draining the oil out of the engine. What is the common method for draining the engine oil on an installation that has the inverted oil system? I noticed that the bottom of the Christen 802 oil valve is about level with the bottom of the oil pan. Should I remove the bottom allen screw (the lowest of the 3 big allen screws) on this valve to drain the oil? This seems like the most convenient fitting to remove but I'm wondering if there are gaskets, O-rings, ball-check valve components, springs, etc that will come flying out of the valve if I should do so. Thanks! Paul Klusman Pitts S-1S P.S. Thanks to the folks who answered my last two questions on the brake fluid and batteries.