flyrotary@lancaironline.net Mailing List Archive

Sorry to hear about the setback Bill, that's a new one on me too.

Guess it will be awhile before you get back to tuning but I got your phone message this morning. I agree that it sounds like you may need to reduce Mode 3 setting to bring the MAP settings back in line at high throttle. If you find that the low end settings need to be too high after you do this, Mode 2 is the thing to adjust next. (This assumes you have the update that changed Mode 2 from Program Range to Injection Dynamic Range).

Tracy

On Mon, Feb 9, 2009 at 7:37 AM, Bill Schertz <wschertz@comcast.net> wrote:

I think EG mixtures can burn, but less likely. The fiberglass ignited near the place the exhaust pipe goes out. Will require some repair work.

Bill Schertz
KIS Cruiser #4045
N343BS

----- Original Message -----

From: George Lendich

To: Rotary motors in aircraft

Sent: Sunday, February 08, 2009 11:33 PM

Subject: [FlyRotary] Re: NEW failure mode for 13B

Bill,

Not the Kiss - I didn't think coolant burned!?

George (down under)

----- Original Message -----

From: Bill Schertz

To: Rotary motors in aircraft

Sent: Monday, February 09, 2009 9:30 AM

Subject: [FlyRotary] NEW failure mode for 13B

Well, I haven't heard of this happening before -- I was ground running my engine to tune it with the EM-2 and EC-2. Ran for almost an hour, at various rpm's to change the manifold pressure and tweak the settings. Cooling working well, I had the top cowling off to allow good exit area since I was tied down. Coolant pressure about 14 psi as reported on the EM-2.

Engine was running good, took it up to ~6000 rpm swinging a 76x76 Catto prop, when suddenly there was steam and fluid on my windshield. Shut it down by killing power to the EC-2. Coolant everywhere.

Got out and looked to diagnose the problem -- NOT my plumbing. A FREEZE PLUG in the iron housing had blown out. Rapid coolant dump.

Secondary effect -- Since I shut down suddenly from full tilt, either the proximity of the cowl to the exhaust, or possibly some of the coolant on the exhaust started a small fire on my cowl. Put it out with extinguisher, but corner is charred.

Bill Schertz
KIS Cruiser #4045
N343BS

Now in repair mode.