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Power point presentation on LOP

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saolesen(at)sirentel.net
Guest

Posted: Mon Aug 24, 2009 6:18 am Post subject: Power point presentation on LOP

If anyone is interested there is a power point presentation by one of  

the GAMI guys on LOP operations.  It details where the problem ROP  

and LOP temps are (the RED Box).  The List won't accept the format so  

email me off list for a copy.

Sheldon Olesen

N475PV 106 hours

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Tim Olson

Joined: 25 Jan 2007
Posts: 2878

Posted: Mon Aug 24, 2009 7:17 am Post subject: Power point presentation on LOP

Sheldon, if you can get me the link, I'll add it to the write-up

where people can grab it.  I don't want to put the original file

in a public write-up though, because I've had my hand slapped once

for even posting a screenshot of a companies website. 



Tim Olson - RV-10 N104CD

do not archive

Sheldon Olesen wrote:

 	  Quote: 	
		   

 

 If anyone is interested there is a power point presentation by one of 

 the GAMI guys on LOP operations.  It details where the problem ROP and 

 LOP temps are (the RED Box).  The List won't accept the format so email 

 me off list for a copy.

 

 

 Sheldon Olesen

 N475PV 106 hours

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pitts_pilot(at)bellsouth.
Guest

Posted: Mon Aug 24, 2009 7:20 am Post subject: Power point presentation on LOP

I'm interested.  Thanks,

Linn



Sheldon Olesen wrote:

 	  Quote: 	
		   



 If anyone is interested there is a power point presentation by one of 

 the GAMI guys on LOP operations.  It details where the problem ROP and 

 LOP temps are (the RED Box).  The List won't accept the format so 

 email me off list for a copy.

 Sheldon Olesen

 N475PV 106 hours

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Mon Aug 24, 2009 8:22 am Post subject: Power point presentation on LOP

The powerpoint presentation on Tim's site would be great!  



Taking the chance that I might be out of line with Tim and many of you

(What's new), I would like to point out one idea for consideration.  FAR

43, Appendix D has as its last entry (j) as a catch all.  You each might

ask your DAR if not doing Mag Timing at a Conditional is appropriate or

to be taken only cautiously before moving ahead.  I have been instructed

that to maintain the TCDS on a Lycoming engine, it is the responsibility

of the repairman, mechanic to confirm the ignition system is providing

fire at the correct number of degrees from TDC. Almost all engines have

one systems a little off note. Klaus might have a perspective on this

idea.  Some might assume it is the RV-10 owner's responsibility to

confirm correct ignition event prior to LOP ops or injector balancing

  I do not subscribe to 10:1 compression as introducing a problem to

correctly maintained engines. Some people love 8.7:1. A TN

(turbo-normalized) GAMI engine does just fine when all the musical

instruments are playing the same sheet of music at the same timing  i.e.

Cirrus G3.



On a separate note, I hope a few of you will join me in November as Don

graduates a handful of us in his Airflow Performance FI class.  It is

held in beautiful Spartanburg, just after the passing of the '09

hurricane season.



Running LOP and fuel injector balancing begins with the perception that

all of the concentric circles are aligned by you the technician.

Compression, Spark, Valve movement, Atmospherics (density of air

mass/temp/humidity) and the correct Air:Fuel ratio (Peak =

Stoichiometric).  As Deem's asked to bring it on, Kelly responded with

some sage advice.



There is good stuff there... Saving money, less carbon footprint and

knowledge of your respective system.  Sheldon you are welcome to send it

my way.



John



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Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Mon Aug 24, 2009 1:38 pm Post subject: Power point presentation on LOP

Yes, checking mag timing is a required task for an A&P/IA on a

certified plane for 100 hour or annual. As I understand it, a

repairman doing condition inspection must develop a checklist equal to

or in greater depth than Part 43 Appendix D, so I believe ignition

timing should be a requirement.

That said, the TIO540 in Mooney TLS/Bravo is one of the most difficult

engines around to run LOP. Symptoms indicate it is either the

pressurized Slick mags, or the combustion chamber design. Some will

run fine LOP, including one I know of, that as soon as one of the

Slick mags was overhauled, would no longer run LOP at all. On that

engine the mags often require overhaul in less than 500 hours.

They also tend to tear up exhaust systems when run LOP. Don't

understand that either, just what owners have experienced.

The Lycoming IO-540 is a very different engine than the IO550

Continental the Cirrus operates with, and stock compression is 8.5:1.

The TCM runs fine LOP. Not all Lyc  IO-540s will.



On Mon, Aug 24, 2009 at 9:20 AM, John Cox<johnwcox(at)pacificnw.com> wrote:

 	  Quote: 	
		   


	


 	  Quote: 	
		     I do not subscribe to 10:1 compression as introducing a problem to

 correctly maintained engines. Some people love 8.7:1. A TN

 (turbo-normalized) GAMI engine does just fine when all the musical

 instruments are playing the same sheet of music at the same timing  i.e.

 Cirrus G3.

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

speckter(at)comcast.net
Guest

Posted: Mon Aug 24, 2009 3:57 pm Post subject: Power point presentation on LOP

Speaking of  condition inspections, does any one have a good checklist?  I

have one I made up but it might be nice to cross check it.



Gary Specketer



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billderou(at)yahoo.com
Guest

Posted: Tue Aug 25, 2009 12:24 pm Post subject: Power point presentation on LOP

Please send a copy.

 Thanks,

 Bill

 



--- On Mon, 8/24/09, Linn Walters <pitts_pilot(at)bellsouth.net> wrote:



  	  Quote: 	
		  

From: Linn Walters <pitts_pilot(at)bellsouth.net>

Subject: Re: Power point presentation on LOP

To: rv10-list(at)matronics.com

Date: Monday, August 24, 2009, 7:55 AM



 --> RV10-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>



I'm interested.  Thanks,

Linn



Sheldon Olesen wrote:

 	  Quote: 	
		   --> RV10-List message posted by: Sheldon Olesen <saolesen(at)sirentel.net (saolesen(at)sirentel.net)>

 

 If anyone is interested there is a power point presentation by one of the GAMI guys on LOP operations.  It details where the problem ROP and LOP temps are (the RED Box).  The List won't accept the format so email me off list for a copy.

 

 

 Sheldon Olesen

 N475PV 106 hours

 

 

 

 

 sp; --> http://foru              - List Contribution Web Site -

_;                     &nbef="http://www.matronics.com/contribution" target=_blank>http://www.mat=====================
	






	
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