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sighting for Barry

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cschuerm(at)cox.net
Guest

Posted: Sat Apr 29, 2006 5:03 am Post subject: sighting for Barry

Spoke to a new Commander owner last night.  The 560F with the IO-720 

conversions (N??KV) was purchased  by a guy in Texas.  Unfortunately, 

when he got it home, his mechanic found a large crack in one of the 

engines.  Needless to say, he's quite disapointed having paid a premium 

for such an airplane and will be down for some time.



Chris

barry.collman(at)air-brit
Guest

Posted: Sat Apr 29, 2006 5:18 am Post subject: sighting for Barry

Hi Chris,



I think this must be 560F-1422-69. It had the IO-720 engines installed, or 

sign-off as being installed, in December 2001.



Just the other day, I got a .doc file emailed to me of the Bill of Sale dated 

April 7th.



Thanks for the heads-up Chris!



Best Regards,

Barry



---

john(at)vormbaum.com
Guest

Posted: Sat Apr 29, 2006 9:56 am Post subject: sighting for Barry

7 years on the list, and I have yet to hear a "happy story" involving the 

IO-720's. Has *anyone* made them run happily for any length of time?



/J



---

kamala(at)msn.com
Guest

Posted: Sat Apr 29, 2006 10:36 am Post subject: sighting for Barry

jv,  i have had two sets of io 720   one on a queen air  excaliber 

conversion..  absolutely no problems  in almost 500 hours of operation.  now 

on a mr rpm  680 fp   for 250 hours.  no particular problems.    190 kts  23 

square   at 32 to 34 gph.  please call to visit.  mason   817-877-4977 or 

mobise 817-517-4977

[quote]From: "John Vormbaum" <john(at)vormbaum.com>

Reply-To: commander-list(at)matronics.com

To: <commander-list(at)matronics.com>

Subject: Re: sighting for Barry

Date: Sat, 29 Apr 2006 10:54:55 -0700






7 years on the list, and I have yet to hear a "happy story" involving the

IO-720's. Has *anyone* made them run happily for any length of time?



/J



---

john(at)vormbaum.com
Guest

Posted: Sat Apr 29, 2006 10:51 am Post subject: sighting for Barry

Excellent! It's nice to hear that they can go the distance and be a viable 

conversion. Perhaps I have that perception because people only post when 

there's a problem, not when everything is hunky-dory.



Cheers & hope to see you at the fly-in this year!



/John

---

floydgm(at)hotmail.com
Guest

Posted: Sat Apr 29, 2006 1:12 pm Post subject: sighting for Barry

I have been working on and flying the MR RPM IO-720 conversions since 1981. 

Compared to the IGSO-540B1A's they are a dream. They do have their share of 

problems, cam and lifter problems, cracked crankcases etc.

I have also noticed that the large majority of them go to TBO. They are the 

only horizontally opposed piston engine in the 400HP class that can claim 

that.



Mike

Commander NW

rsrandazzo(at)precisionma
Guest

Posted: Sat Apr 29, 2006 9:11 pm Post subject: sighting for Barry

<gasp!>



Are you telling me my GTSIO-520-Ks might not make it to TBO?????  :-p



Just about to hang a fresh O/H 520-K on the 685....   Last one came apart

after only 300hrs...  Defect when the previous overhaul shop reassembled-

but that doesn't help my checkbook.



Rob

 



--

n395v

Joined: 10 Jan 2006
Posts: 450

Posted: Sun Apr 30, 2006 4:28 am Post subject: Re: sighting for Barry

 	  Quote: 	
		  Are you telling me my GTSIO-520-Ks might not make it to TBO????? 	




You will replace some cylinders but if you maintain them and fly them right they will go well beyond TBO.



I would especially recommend GAMI's and LOP (that should generate some discussion) and attending John Deakins course in ADA OK.

_________________
Milt

bowing74(at)earthlink.net
Guest

Posted: Sun Apr 30, 2006 7:08 am Post subject: sighting for Barry

Would that be a course on "How to Double Your Income Without Working"? :>)



bilbo



--

rsrandazzo(at)precisionma
Guest

Posted: Sun Apr 30, 2006 10:54 am Post subject: sighting for Barry

Bilbo-



I'll be happy to sell you that course!  Three EASY payments!



Rob 



--

rsrandazzo(at)precisionma
Guest

Posted: Sun Apr 30, 2006 11:02 am Post subject: sighting for Barry

Milt-



I've heard that I'll be using cylinders.  That doesn't worry me nearly as

much as the engine replacement type work we are doing now.



LOP/ROP...  A bit like "pitch or power" controls glidepath.



Seriously- I'd be interested in learning best techniques for operating 520-K

engines.  Can you give more information on John Deakins and his course?  I

have read the Operator's Manual published in 1988 by TCM and they recommend

100C ROP for EGT leaning and 50C ROP for leanest cylinder leaning.  My

engine mechanic is strongly opinionated to ROP as well, although I want to

educate myself a bit before asking him why.



(I'm a turbine guy- and aside from the T-6, I don't have a lot of current

recip experience.  The Pratt on the T-6 is probably the finest engine I've

ever flown and you could put marbles in the oil and it would continue to

run....)



Rob

N414C



--

tfisher(at)commandergroup
Guest

Posted: Mon May 01, 2006 9:28 am Post subject: sighting for Barry

I am advised by my engineers that I need to obtain an Engine Parts Manual

for the IO-720, any spares around?

I always love the notes written in used manuals.



Tom F.

C-GISS



---

kamala(at)msn.com
Guest

Posted: Mon May 01, 2006 5:08 pm Post subject: sighting for Barry

tf, lycoming has a manual.  call textron technical  i will get you the 

number.  mason

[quote]From: "Tom Fisher" <tfisher(at)commandergroup.bc.ca>

Reply-To: commander-list(at)matronics.com

To: <commander-list(at)matronics.com>

Subject: Re: sighting for Barry

Date: Mon, 1 May 2006 10:23:06 -0700




<tfisher(at)commandergroup.bc.ca>



I am advised by my engineers that I need to obtain an Engine Parts Manual

for the IO-720, any spares around?

I always love the notes written in used manuals.



Tom F.

C-GISS



---

kamala(at)msn.com
Guest

Posted: Thu May 04, 2006 10:20 am Post subject: sighting for Barry

tf,  call lycoming technical dept  800-258-3279   ask for george(I =

think). mason

  ---

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