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From: "Joe Hull" <joeh@PilgrimTech.com>
To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Break-In?
Date: Mon, 31 Oct 2005 10:15:16 -0800
Organization: Pilgrim Technologies
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> Don't let the oil or coolant temps get above 200 F during the frist
5 hours of break-in.  If it get's to 200, shut it down and let it
cool.

Yep, last run was for about 10 minutes and it went to 215 and I shut
it down. I'm going to set the MicroTech setting that turns on my
radiator fan at 200 and see if it can hold at around that temp.

Joe Hull
Redmond (Seattle), Washington
Cozy MkIV #991 (working on Engine & Electrical & Finishing)
http://www.maddyhome.com/canardpages/pages/JoeHull/index.html
 
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
> On Behalf Of Bob White
> Sent: Monday, October 31, 2005 10:03 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Break-In?
> 
> Hi Joe,
> 
> Here are the instructions I got from Bruce T. when I got my engine.
> 
> Run the engine for 5 hours on the ground.
> 
> Don't let the oil or coolant temps get above 200 F during the frist
> 5
> hours of break-in.  If it get's to 200, shut it down and let it
> cool.
> 
> Don't exceed 4500 RPM in the first five hours.
> 
> For the next 10 hours, don't exceed 6000 RPM.  Flight is OK if it's
> safe with that RPM limitation.
> 
> This is very conservative compared to what I've seen others do on
> this
> list and I suspect Bruce wants to be extra careful.  I'm expecting
> to
> do the entire 15 hours on the ground.  I want to have as much power
> as
> I can for TO from our 6100 ft. elevation runway.  We'll see what
> kind
> of static and flying RPM's I can get.  I have two props to try, and
> one
> is adjustable, so I should be able to get something reasonable.
> 
> Bob W.
> 
> On Mon, 31 Oct 2005 08:58:17 -0800
> "Joe Hull" <joeh@PilgrimTech.com> wrote:
> 
> > 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 :-) ?
> >
> > Thanx,
> > Joe Hull
> > Redmond (Seattle), Washington
> > Cozy MkIV #991 (working on Engine & Electrical & Finishing)
> >  <http://www.maddyhome.com/canardpages/pages/JoeHull/index.html>
> > http://www.maddyhome.com/canardpages/pages/JoeHull/index.html
> >
> >
> >
> 
> 
> --
> http://www.bob-white.com
> N93BD - Rotary Powered BD-4 (projected engine start in November)
> Custom Cables for your rotary installation -
> http://www.roblinphoto.com/shop/
> 
> --
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