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04-09-2015, 08:59 PM
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Join Date: Jan 2013
Location: brazil
Posts: 316
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Here am I again! First engine start
https://youtu.be/836dK77R2lI
On second start after 10 minutes from first I experienced rough idle and BOTH slicks mags dropped 250 to 300 rpm at 1800 rpm, full power on my sterba was steady at 2380rpm smooth on engine. Everything is new, another issue was my G3X single screen went dead when cranking and soon after came alive,
Keep walking tomorrow to solve those skawks
__________________
Guilherme Plassmann (Brazil)
RV7A (Mr Flame) slow kit S/N 74285 Finished 04/14/15😀😀😀😀flying
G3X
Superior IO360
Sterba prop
TSFlightlines hoses
LR30,PRM1,C560,C510S,HS125,B350 FAA/ANAC Pilot
Donation made 2016
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04-09-2015, 11:03 PM
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Join Date: Jul 2010
Location: Dubai
Posts: 134
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Congratulations on the first engine start!!. For info it is not recomended to run the engine without the wings installed.
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04-10-2015, 05:50 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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Quote:
Originally Posted by Guilhermepilot
https://youtu.be/836dK77R2lI
Everything is new, another issue was my G3X single screen went dead when cranking and soon after came alive,
Keep walking tomorrow to solve those skawks
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I hope my backup battery will prevent the low voltage dropout of the G3X.
Congrats on the start. Be sure to check the empennage. Apparently, damage has occurred from running the engine without the wings on! I don't have facts, but it is not done for that reason.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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04-10-2015, 10:39 AM
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Join Date: Jan 2013
Location: brazil
Posts: 316
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I did not know that, thanks, I will wait untill tomorrow after wing is complete and bolted
Thanks all captains
__________________
Guilherme Plassmann (Brazil)
RV7A (Mr Flame) slow kit S/N 74285 Finished 04/14/15😀😀😀😀flying
G3X
Superior IO360
Sterba prop
TSFlightlines hoses
LR30,PRM1,C560,C510S,HS125,B350 FAA/ANAC Pilot
Donation made 2016
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04-10-2015, 10:53 AM
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Join Date: Oct 2012
Location: New Ulm, Minnesota
Posts: 283
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Motor runing
There is nothing like the first time when you start a motor in the fuselage and hear and feel the shake.. Very Cooooooool.... 
__________________
Robin Mckee
New Ulm, MN 56073
RV3b N219BB
420 hours and counting
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04-10-2015, 06:08 PM
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Join Date: Sep 2014
Location: IN
Posts: 254
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Mag drop
It is not unusual to see some oil fowling on a fresh engine, the fact that it cleared when given full power is assurance that was the problem. I would not run it full power except to seen that it will give required thrust for flight.
Do not let the cht's get above 400 during your testing, and do not restart until things are cool enough to rest your hand on the cylinder.
Get a copy of ECI's cylinder break in procedures and follow them! I have never had a bad break in once I started using these methods.
Boyd Birchler
A&P/IA
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04-11-2015, 05:08 AM
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Join Date: Mar 2008
Location: Plattsville, Ontario
Posts: 59
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First Start
Quote:
Originally Posted by Arie
Congratulations on the first engine start!!. For info it is not recomended to run the engine without the wings installed.
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Congrads on your first start! The beast finally comes to life.
As a newbie who is still working on the fuselage of an RV7, I have a question.
Why is it not recommended to start without the wings attached? Aside from fact that the Vmu (minimum unstick speed) would be a really BIG number? 
Thanks,
Steve Wolfe
__________________
"Never" and "always" are the two words that you should always never use.
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04-11-2015, 05:13 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Shake
Steve, the wings are a great damper, absorbing the power pulses from the engine.
The vertical fin takes a pounding without the wings since there is a considerable reaction from the fuselage with no wings.
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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04-11-2015, 05:33 AM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,583
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At one time there was a You Tube of an experimental that was started without the wings. not a pretty sight.
Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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04-11-2015, 06:55 AM
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Join Date: Jan 2013
Location: brazil
Posts: 316
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When cranking the aircraft dance like a lady
i agree that is bad, but today wings will be done ai will be
Able to deal with my fuel injection system
__________________
Guilherme Plassmann (Brazil)
RV7A (Mr Flame) slow kit S/N 74285 Finished 04/14/15😀😀😀😀flying
G3X
Superior IO360
Sterba prop
TSFlightlines hoses
LR30,PRM1,C560,C510S,HS125,B350 FAA/ANAC Pilot
Donation made 2016
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