From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: First engine run -- prop or not?
Date: Mon, 25 May 2020 15:17:25 +0800
References: <list-285667@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-285667@logan.com>
Message-Id: <61095C98-7E13-4A6C-AA6C-F25D3CD89AEB@gmail.com>

Hi there Finn

Its exciting when it first starts and disappointing when it doesn=E2=80=99=
t run sweet.
Congrats.

Steve Izett

> On 25 May 2020, at 10:01 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
>=20
> Probably too early to give you that. (Used 8.10 and PICkit2).
>=20
> Ran for the first time today (no prop).
>=20
> Over speeding not an issue. Ran like a Harley :( =20
> No sure if because no prop or because not tuned yet or if something =
else wrong.
>=20
> Zero RPM readout on EM3. I must have misunderstood the instructions or =
the program. I thought the EM3 got RPM from the EC3, so I didn't wire =
the tach input to the EM3.
> EM3 shows "NOP" until EC3 is turned on. Then shows "0".
>=20
> Only did a couple of runs. Fuel pumps started leaking badly around =
O-rings when I adjusted fuel pressure up to 37psi (engine not running). =
Pooled up in fuselage. Need to fix before I try running again. Gas is =
cheap, but not that cheap. I'll try copper washers on the pressure =
(output) side instead of the o-rings.
> <hdhnppaldlddbemj.jpg>
> Yes, I know, not pretty. Threaded the output fitting at an angle :(=20
> Too lazy to redo the output block.=20
> I also need to bend a new input tube without a kink.
>=20
> Max oil pressure only about 50 psi, hopefully because of low RPM.
> Forgot to turn on master switch so alternator didn't come on-line.
> Didn't log the run where that worked.
>=20
> Anyhow, can now say I've run the engine :)
>=20
> Finn=20
>=20
> On 5/22/2020 6:12 AM, Stephen Izett stephen.izett@gmail.com wrote:
>> Great work Finn
>> Could I get the MPLABs version your using and any more info for the =
build.
>> I could build and program and confirm the burn but the EC3 ran like a =
dog.
>>=20
>> Steve
>>=20
>>=20
>>=20
>>=20
>>> On 22 May 2020, at 9:16 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net>
>>>  wrote:
>>>=20
>>> Well, after several hours of Murphy working overtime, I finally was =
able to get the wiring on my EC3 chip programming board right, chips =
programmed and EC3 installed.
>>>=20
>>> Flux capacitor fluxing, injectors clicking and spark plug firing.
>>>=20
>>> Time to get the wheels on and roll it out and start the engine.
>>>=20
>>> Oh, wait, guess I need to finish and install the prop :(
>>>=20
>>> Finn
>>>=20
>>>=20
>>> On 5/21/2020 9:23 AM, Finn Lassen=20
>>> finn.lassen@verizon.net
>>>  wrote:
>>>=20
>>>> 1) Without prop any vibration will be from engine and PSRU and can =
inspect engine (leaks, etc.) with no fear of prop.
>>>>=20
>>>> 2) With prop less chance of over rev and some cooling air through =
rads and oil cooler.
>>>>=20
>>>> What do you think?
>>>>=20
>>>> Finn
>>>>=20
>>>>=20
>>>>=20
>>>> --=20
>>>> Homepage: =20
>>>> http://www.flyrotary.com/
>>>>=20
>>>> Archive and UnSub:=20
>>>> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>>>=20
>>>>=20
>>>>=20
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>> --
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>=20
>=20
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