Hi Joe, Tim down in Redding. Congratulations on getting = your project started. Just wondering what you are using for an oil level = sensor. This has come up recently and it’s something I would like to have = on my project. I’m still following the rotary progress and would = like to go that route but have recently purchased a Lycoming L I = came across a good used one at a fair price and current plan is to get the = plane flying and then convert later, after you work out all the bugs for me = J = !

Tim

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Joe Hull
Sent: Monday, October 31, = 2005 8:58 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Break-In?

Well my engine is just humming (roaring?) along. I = starts every time, runs till I stop it, and it doesn’t sound like it is = missing or “hunting” – RPM is about 1400-1500 with the prop = on. All leaks are pretty much gone except for a persistent = “weeping” on the oil level sensor on the pan that produces a drop over 8-12 hours but = never drips? It looks like the only way to fix that is to drain the oil = and remove it and maybe the pan, and hit with some = RTV.

I’ve run it now for about a total of 30 minutes = in 3-4 different runs all of them under 2000 RPM – essentially at = whatever I could get idle to be. The MicroTech is performing well. However, the = Laptop Software what gives a graphical view of the Maps and the ability to log = data requires more than a serial-cable to connect to the ECU. Apparently they = sell a separate little gizmo (“dongle”) that goes between the = laptop serial-port and the serial-cable to the ECU. So I’m stuck with the = 2 line handset for now.

Anyone have any more suggestions on break-in tasks? I re-read some archived posts on the subject. It sounds like I should keep = it under 3000RPM for the first hour or so and then move it up. Beyond = that, and with no more leaks to fix, I’m at a loss to know what, if = anything, I need to do. I really didn’t expect it to be this = easy.

Before first flight I want to have at least 10 hours = of ground running done with at least 1 hour at or above 5000 RPM – = and that 1 hour can’t be the last hour.

Should I be checking compression every so often? = Timing? Tear the engine down and Mic all the parts J ? =

Thanx,

Joe Hull

Redmond (Seattle), = Washington

Cozy MkIV #991 (working on Engine & Electrical = & Finishing)

http://www.maddyhome.com/canardpages/pages/JoeHull/index.html