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Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Thu Aug 07, 2008 11:04 am Post subject: Landing and engine pictures

 	  Quote: 	
		   From: Lynn Matteson [lynnmatt(at)jps.net] 

 Spot-on, you say old chap? Well, bully then, the next pint's on me!


	


By Jove! You do speak English, don't you? Good show, old fruit!

.. okay, I'll shut up, leave the room and go and play with my new pacemaker! 



Michel

Do not archive

<pre><b><font size  color="#000000" face="courier new,courier">

_________________
Kitfox 3 - Jabiru 2200

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Thu Aug 07, 2008 11:36 am Post subject: Landing and engine pictures

 	  Quote: 	
		   From: Jim_and_Lucy Chuk [thesupe(at)hotmail.com]

 Sorry if I offended anyone, I didn't mean to.


	


Ouch, that hurts, Jim! Aren't you ashamed to hit an old man with a pacemaker? 

Just kidding; I agree with you. The Jabiru with its 85 HP gives more cruise power but not climb power than the 582. I don't think it has anything to do with the propeller but simply the torque of an engine that turns twice as slow as a Rotax.



I was very well aware of that when I bought my Jabiru. Although I know virtually nothing about aircraft engines, my thinking was this: Yes, the Rotax (912 and 582) are two mighty engines with water cooling and gear box, thus very stable and therefore a favourite in experimental aviation, the Jabiru was atractive by its simplicity and when you don't know much about engines, less is more. I also thought that if Continental and Lycoming were also direct drive air-cooled engines, ... the technology was still good for aviation. 



Lynn wrote:

 	  Quote: 	
		   My serial number is 2062, Michel, just 5 engines before they went to 

 wet lifters (hydraulics)....what number is yours? Did you already 

 have the dowels in your engine?


	


My serial number is 1665, Lynn. An older engine but still from what is called the third generation Jabiru although I don't have the dowels. Thanks for your advice and I will look under the flywheel at each pre-flight. It's easy for my, my opening under the cowling is very large and it gives a good view of the rear bottom end of the engine. Looking there is already in my pre-flight because it allows me to check the recovery bottle without removing the cowling.



Cheers,

Michel Verheughe

Norway

Kitfox 3 - Jabiru 2200 ... grounded for now.

<pre><b><font size  color="#000000" face="courier new,courier">

_________________
Kitfox 3 - Jabiru 2200

Fox5flyer
Guest

Posted: Thu Aug 07, 2008 2:11 pm Post subject: Landing and engine pictures

http://www.ntsb.gov/ntsb/brief.asp?ev_id=20080806X01164&key=1

  

 We don't often hear about it happening, but even a  912 can come apart.  Here's a recent NTSB report of a Kitfox IV emergency  landing that, fortunately, ended up with both the pilot and airplane relatively  intact.

 Anybody know this guy?

 Deke Morisse

Mikado Michigan

S5/Subaru/CAP  388+ TT

"The aim of an argument or discussion should not be victory, but  progress."

- Joseph Joubert

  

 

 

  

   [quote][b]

gary.algate(at)sandvik.co
Guest

Posted: Thu Aug 07, 2008 2:55 pm Post subject: Landing and engine pictures

Lynn 

If you would like to send the broken gear to my office in Barrie, Ontario I can have our metallurgist take a look at it. We can do carbon analysis and have metallurgical inspection as my people there are qualified in fatigue analysis for our drilling products.  

Might show something! 

the only other thing that the jab people here could come up with was some sort of contaminant in the oil etc that jammed between the teeth. After reading your posts I find that highly unlikely! 

How were the rest of your pistons and valves? 

Gary

 Gary Algate

 SMC, Exploration

 Office Phone: +61 8 8276 7655

 This e-mail is confidential and it is intended only for the addressees. Any review, dissemination, distribution, or copying of this message by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error, kindly notify us immediately by telephone or e-mail and delete the message from your system. The sender does not accept liability for any errors or omissions in the contents of this message which may arise as a result of the e-mail transmission. 

Lynn Matteson <lynnmatt(at)jps.net> 

Sent by: owner-kitfox-list-server(at)matronics.com 

08/08/2008 01:01 AM 

Please respond to

 kitfox-list(at)matronics.com     To

 kitfox-list(at)matronics.com   cc

    Subject

 Re: RE: Landing and engine pictures 

--> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net>

 Thanks for checking into it, Gary.

 I did the service bulletin at the time it was issued, and I changed  

 all the bolts, the originals of which were already at the then- 

 current torque specs, so no "loose flywheel" at that time. No loose  

 flywheel at this time either, and no fretting was seen when I took it  

 off this time. My engine (#2062) had the three dowels already fitted.

 Unless they'd like to see my broken gear, and give me some new parts  

 (yeah, right!), I guess I'l just buy new parts and get back to flying.

 Lynn

 On Aug 6, 2008, at 9:19 PM, gary.algate(at)sandvik.com wrote:

 >

 > Lynn

 >

 > The head engine builder (Don) at Jabiru just called me and we ran  

 > thru your timing gear failure.

 >

 > Jabiru Australia have one (1) reported Crankshaft Timing gear  

 > failure and this happened three years ago at Innisfil (S.Australia)  

 > on a Jab2200 powered lightwing.

 >

 > The gear was inspected at Jabiru and heat treat and mfg were all  

 > within spec. There were no signs of contamination between the gears  

 > and the final consensus was that the operator may have been  

 > experiencing pre-ignition or was running with a loose flywheel  

 > which could have over-stressed the gear.

 >

 > The gear only runs the camshaft at a 2:1 ratio and is very lightly  

 > loaded so with over 1500 units in operation and only one recorded  

 > failure that could not be attributed to component overstress no  

 > service directive was issued.

 >

 > They have released directives to ensure all fly-wheel bolts are  

 > correctly torqued.

 >

 > Sorry I couldn't get you a more definitive answer but it appears  

 > that this might have been a 1 off (or 2 - off)

 >

 > best regards

 >

 > Gary

 >

 > Gary Algate

 > Kitfox Classic 4 2200A

 > Office Phone: +61 8 8276 7655

 >

 >

 > This e-mail is confidential and it is intended only for the  

 > addressees. Any review, dissemination, distribution, or copying of  

 > this message by persons or entities other than the intended  

 > recipient is prohibited. If you have received this e-mail in error,  

 > kindly notify us immediately by telephone or e-mail and delete the  

 > message from your system. The sender does not accept liability for  

 > any errors or omissions in the contents of this message which may  

 > arise as a result of the e-mail transmission. _- 

 > www.matronics.com/Navigator?Kitfox-List _- 

 > www.matronics.com/contribution _- 

 > ============================================================

 -

 -

          -Matt Dralle, List Admin.

 [quote][b]

gary.algate(at)sandvik.co
Guest

Posted: Thu Aug 07, 2008 3:15 pm Post subject: Landing and engine pictures

Jim 

You are dead right about climb performance when you compare a Jab to a 582 or 912. 

Both of the Rotax engines are geared and therefore run large diameter props (72") and with props diameter normally dictates climb rate. 

I went from a 582 Blue head to a very early model Jabiru and the climb rate that I saw was very similar on both engines (500 - 650ft/min at gross) however the Jab cruised faster, quieter, vibrated less and used far less fuel. 13 Ltr/Hr at cruise vs 19 Ltr/hr on the 582. 

When I fitted the new 2200 I noticed it was significantly more powerful and I now see consistent climb rates of over 1000ft/min which is far better than I saw with the 582 

As you point out the Rotax 912 and 912S with the large diameter props have excellent climb performance - (Normally better than the Jab2200). 

If I were on floats I would certainly go for the 912 over the Jab2200. 

For simplicity the Jab  is air cooled, direct drive, low revving, fuel efficient, lightweight, very pretty and sounds like a real airplane engine. 

The 912 is also an excellent choice although slightly more complicated however it is still the engine of choice in N.America and most of Europe. 

There are over 2,000 jab engines in service and the company is growing exponentially - with a 2,000 hr TBO 

If you go to the Rotax service bulletin web site I think you will find that Rotax also have a significant number of updates posted but being engines in experimental aircrafts I think this is to be expected - both companies are also continually improving and upgrading their products based on service history so once again changes are inevitable. 

I think both engines are great and please take this with a grain of salt as it is only my opinion! 

Gary 

 Gary Algate

 Classic 4 Jab2200

 Office Phone: +61 8 8276 7655

 This e-mail is confidential and it is intended only for the addressees. Any review, dissemination, distribution, or copying of this message by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error, kindly notify us immediately by telephone or e-mail and delete the message from your system. The sender does not accept liability for any errors or omissions in the contents of this message which may arise as a result of the e-mail transmission. 

Jim_and_Lucy Chuk <thesupe(at)hotmail.com> 

Sent by: owner-kitfox-list-server(at)matronics.com 

08/08/2008 01:17 AM 

Please respond to

 kitfox-list(at)matronics.com     To

 <kitfox-list(at)matronics.com>   cc

    Subject

 RE: RE: Landing and engine pictures 

Just thought I would open my mouth on this (and probably regret it later LOL)  I have a Jabiru in my Avid Mk IV

 and while it seems to run fine, it does not have the performance I expected from it.  It is faster than the 582 it

 replaced, but does not climb as well.  Maybe I don't have it set up right prop wise, but at about $500 each for a 

 Tennasee prop, how much experimenting can you do.  On the Kitfox 4 I'm building, I picked up a used 912 Rotax

 engine and have high hopes for it.  At least with it I can put on a large ground adjustable prop and set it where I 

 want it.  I think the 60" to 64" wood prop you have to use on the Jabiru is a big disadvantage.  The Jabiru probably 

 weighs 20 lbs less installed than the 912 and that might be a factor on the Kitfox 2 with the lower gross weight.

 I've also read a lot of the posts on the Rotax matronics list as well as most of them on the Jabiru sites.  There are a 

 lot more Rotaxes out there than the Jabirus, but I think there are more posts of major problems on the Jab sites than 

 the Rotax ones.  Sorry if I offended anyone, I didn't mean to.  Just putting into words what I've come to belive about

 these engines.  Granted, I have yet to fly a 912 Rotax.  Jim Chuk Kitfox 4 building, Avid MK IV flying  MN

 Date: Thu, 7 Aug 2008 07:56:11 -0700

 From: msm_9949(at)yahoo.com

 Subject: Re: RE: Landing and engine pictures

 To: kitfox-list(at)matronics.com

    I, for one, appreciate the discussion. Re-engining may be in the offing for me and the Jab 2200 was/is on my short list of possibilities. Please continue. 

Marco Menezes N99KX 

Model 2 582-90 C-Box 

 --- On Thu, 8/7/08, Lynn Matteson <lynnmatt(at)jps.net> wrote: 

From: Lynn Matteson <lynnmatt(at)jps.net>

 Subject: Re: RE: Landing and engine pictures

 To: kitfox-list(at)matronics.com

 Date: Thursday, August 7, 2008, 10:14 AM

--> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net>

 I haven't said anything regarding my engine failure on either of the  

 Jabiru lists, Matronics or Yahoo...yet. I will when I have something  

 to say, (wink, wink). Still waiting to hear back from Jabiru...they  

 have been informed of the incident.

 Michel, I was right behind you on the flywheel bolt issue...my engine  

 had the dowels already in place, the existing bolts were tight, and  

 the engine lasted a good 300 hours (I'm guessing, since I'm not where  

 my records are) since I complied with that Service Bulletin. Boy,  

 that was a busy time on the ol' Jabiru site, eh?

 My oil was seeping from right below the rear main oil seal. If you  

 recall, the timing gear provides the surface upon which the oil seal  

 rides. It's a rather strange design, unlike any I've seen in all the  

 engines I've dealt with over the years, but then we're in the  

 aviation world now, where lightness, compactness, and engineering  

 done to the Nth degree is commonplace. You have to look behind the  

 flywheel, Michel, from below, to see the area.

 I could kick my ass, in hindsight, for not getting right after that  

 leak after I first saw it. Like I said before, a seeping seal is not  

 the reason one normally pulls the engine and goes after it. After  

 all, it's only "seeping", not pouring out, threatening a fire,

 etc.  

 But looking back on it, that's what I should have done. Actually, the  

 repair could have been done with the engine still in the  

 plane...barely, in my case.  The rear cover is all that must be  

 pulled, and this requires taking the flywheel off. After that is off,  

 the timing gear cover can be removed, and the timing gears are then  

 exposed. Even taking the flywheel off and pulling the seal might have  

 revealed the crack in the timing gear, which in my case could  

 probably have been seen at that point. From the looks of the broken  

 pieces, this has been a faulty gear for some time.

 My serial number is 2062, Michel, just 5 engines before they went to  

 wet lifters (hydraulics)....what number is yours? Did you already  

 have the dowels in your engine?

 Guy, if this is getting too far away from "Kitfox" in nature, holler.

 Lynn Matteson

 Kitfox IV Speedster

 Jabiru 2200

 Status: "Condition grounded, but determined to try."  (Pink  

 Floyd..."Learning to Fly")

 On Aug 7, 2008, at 7:15 AM, Michel Verheughe wrote:

 > Gary and Lynn; one question: why am I on the Jabiru list we I have  

 > you guys, here on the Kitfox one? ... )

 >

 > Thanks a lot for both answers. I will check for oil stain as a pre- 

 > flight routine, Lynn, that's a good idea. I agree with you, Gary,  

 > the Jabiru is a fine engine but - like any engine - it can be  

 > subject to failure. If you remember my writing on the Jabiru list,  

 > I have always been the advocate to tolerance and stress that when  

 > we take an engine designed to be installed in a Jabiru aircraft,  

 > but install it in something else, we are entering the world of  

 > experimental aviation with all of its consequences. We are,  

 > actually, test pilots.

 >

 > I am also please to own one of the last solid lifters model. The  

 > question to know if a loose flywheel could be the cause of Lynn's  

 > failure is interesting. As you remember, I was one of the first to  

 > comply to the bulletin requesting a retorquing of them, which I did  

 > and illustrated here:

 > http://home.online.no/~michel/Flywheel

 >

 > Now, Lynn, where exactly did you see your oil seeping from? I  

 > understand that the timing gear is behind (or rather, in front of,  

 > if you look forward) of the flywheel. But I am not sure where the  

 > oil leaks from.

 >

 > Cheers,

 > Michel Verheughe

 > Norway

 > Kitfox 3 - Jabiru 2200 ... grounded.

 >

 >

 > <pre><b><font size  color="#000000"

 face="courier new,courier">

 >

 > List">http://www.matronics.com/Navigator?Kitfox-List</a>

 > forums.matronics.com</a>

 > www.matronics.com/contribution</a>

 >

 > </b></font></pre>

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 -

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          -Matt Dralle, List Admin.

 [quote][b]

n61kf

Joined: 27 Aug 2006
Posts: 23
Location: Waynesville Ohio

Posted: Fri Aug 08, 2008 3:54 am Post subject: Re: Landing and engine pictures

Lynn at Oshkosh worrying about the condition of his engine!

IMGP1425.JPG

Description:

Filesize:

287.79 KB

Viewed:

562 Time(s)

_________________
Keith Schneider
Red Stewart Airfield
Waynesville Ohio
KF IV 912ul

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Fri Aug 08, 2008 4:24 am Post subject: Landing and engine pictures

From the sounds of things, my gear breakage is another of those  

"we've never heard of that happing before" things, and nobody else  

will have to worry. I certainly hope so.



On the recovery bottle thing...mine is fiberglas, and I built up the  

bottom of it with more 'glas so I could drill and tap it with a  

1/4"NPT tap. I installed a petcock so I could drain the contents of  

the bottle and didn't have to remove the cowl to do it...all I had to  

do was reach up through the lower cowl air exit and turn the petcock  

a zillion turns to drain the oil. Now I'm thinking of using a quick- 

drain fitting and a length of hose so the fitting is right at the  

bottom of the lower cowl, and can be drained more readily.



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")



On Aug 7, 2008, at 3:34 PM, Michel Verheughe wrote:



 	  Quote: 	
		    Thanks for your advice and I will look under the flywheel at each  

 pre-flight. It's easy for my, my opening under the cowling is very  

 large and it gives a good view of the rear bottom end of the  

 engine. Looking there is already in my pre-flight because it allows  

 me to check the recovery bottle without removing the cowling.



 Cheers,

 Michel Verheughe

 Norway

 Kitfox 3 - Jabiru 2200 ... grounded for now.

 <pre><b><font size  color="#000000" face="courier new,courier">



 List">http://www.matronics.com/Navigator?Kitfox-List</a>

 forums.matronics.com</a>

 www.matronics.com/contribution</a>



 </b></font></pre>

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

shinco(at)bright.net
Guest

Posted: Fri Aug 08, 2008 5:43 am Post subject: Landing and engine pictures

n61kf wrote:

 	  Quote: 	
		   



 Lynn at Oshkosh worrying about the condition of his engine!



 --------

 Keith





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=197287#197287





 Attachments: 



 http://forums.matronics.com//files/imgp1425_646.jpg

 Checked by AVG - http://www.avg.com 



   

NOW that is funney Lynn,,,,That pic is worth a MILLION   $$ big 
	


ones...GOOD PICTURE       STEVE SHINABERY N554KF  KF2

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Fri Aug 08, 2008 6:24 am Post subject: Landing and engine pictures

I'd like to do that, Gary. But first I want to wait until I get some  

word from the Jabiru dealer to see if they want to see the pieces. If  

not, I'll get in touch with you and send them off.



I think the only contaminant that got between the teeth was another  

one of the teeth. : )



Even the intake valve that was hit by the piston is still without  

runout when spun in my lathe, but a local aircraft engine rebuilder  

magnafluxed it and said it looked like it had cracks, but that it  

might have been where the head was spun-welded onto the stem, and  

that he would not use it. And to that I gave a big amen, 'cause I  

sure as hell WASN'T gonna put that back into the engine, even if I  

got a "good to go report" from the magnaflux check. See picture:

I certainly didn't need the 'flux job to tell me not to use this  

valve, but I also couldn't determine what the "scratchy-looking"  

marks were. My best guess is that very hard metal was flexed, and  

where the flex occurred, the edges flaked off, leaving a slight  

crater which shows up as a scratch.



The guides are worn to their allowable tolerances, but the valve  

stems are right on specs. The valve "wobble test" told me more than  

the micrometer did, and I plan on getting the heads done...new valves  

and guides. The local aircraft engine guy said he thought they'd make  

it to the 1000 hr suggested head overhaul time, but certainly not  

with the one valve looking like it does. His estimate was based on  

the appearance of the guides, valves, and the wobble test, and his  

experience in the field.



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")



On Aug 7, 2008, at 6:54 PM, gary.algate(at)sandvik.com wrote:



 	  Quote: 	
		  

 Lynn



 If you would like to send the broken gear to my office in Barrie,  

 Ontario I can have our metallurgist take a look at it. We can do  

 carbon analysis and have metallurgical inspection as my people  

 there are qualified in fatigue analysis for our drilling products.



 Might show something!



 the only other thing that the jab people here could come up with  

 was some sort of contaminant in the oil etc that jammed between the  

 teeth. After reading your posts I find that highly unlikely!



 How were the rest of your pistons and valves?



 Gary



 Gary Algate

 SMC, Exploration

 Office Phone: +61 8 8276 7655

impacted_valve.jpg

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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Fri Aug 08, 2008 6:26 am Post subject: Landing and engine pictures

Hmmmmm......ya see, Michel, the word "fruit" has sort of a different  

meaning over on this side of the pond....... : )

Have ya looked into hopping up that new toy yet?

Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")

do not archive

On Aug 7, 2008, at 3:03 PM, Michel Verheughe wrote:

 	  Quote: 	
		  > From: Lynn Matteson [lynnmatt(at)jps.net]

> Spot-on, you say old chap? Well, bully then, the next pint's on me!

 By Jove! You do speak English, don't you? Good show, old fruit!

 ... okay, I'll shut up, leave the room and go and play with my new  

 pacemaker! 

 Michel

 Do not archive

 <pre><b><font size  color="#000000" face="courier new,courier">

 List">http://www.matronics.com/Navigator?Kitfox-List</a>

 forums.matronics.com</a>

 www.matronics.com/contribution</a>

 </b></font></pre>

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Fri Aug 08, 2008 6:36 am Post subject: Landing and engine pictures

 	  Quote: 	
		   From: n61kf [bkls1(at)earthlink.net]

 Lynn at Oshkosh worrying about the condition of his engine!


	


Wow! Lynn, you're the coolest pilot I know! ... 



Cheers,

Michel

Do not archive

<pre><b><font size  color="#000000" face="courier new,courier">

_________________
Kitfox 3 - Jabiru 2200

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Fri Aug 08, 2008 6:37 am Post subject: Landing and engine pictures

Nahhh....if I'da been worried, I'd have had a beer in my hand.



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")

do not archive





On Aug 8, 2008, at 7:54 AM, n61kf wrote:



 	  Quote: 	
		   



 Lynn at Oshkosh worrying about the condition of his engine!



 --------

 Keith

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Fri Aug 08, 2008 6:58 am Post subject: Landing and engine pictures

I was walking by the "Air Chair" tent at Oshkosh, and couldn't resist  

the orange chair that almost matches my plane, so I bought it. The  

wing was tied down on the other side, so I was in no danger of  

dropping on my pratt (there's more of that English phrasing again).  

After I got back, I tried the chair on the plane without it being  

tied down, and it still didn't drop me...try that  with your bungee- 

cord landing gears. (The former comment was a shameless plug for the  

Grove gear, or any other with a wider stance...the larger the pilot,  

the wider the stance must be)



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")

do not archive





On Aug 8, 2008, at 10:36 AM, Michel Verheughe wrote:



 	  Quote: 	
		  > From: n61kf [bkls1(at)earthlink.net]

> Lynn at Oshkosh worrying about the condition of his engine!



 Wow! Lynn, you're the coolest pilot I know! ... 



 Cheers,

 Michel

 Do not archive

 <pre><b><font size  color="#000000" face="courier new,courier">



 List">http://www.matronics.com/Navigator?Kitfox-List</a>

 forums.matronics.com</a>

 www.matronics.com/contribution</a>



 </b></font></pre>

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

aaaron(at)tvp.com.au
Guest

Posted: Fri Aug 08, 2008 12:38 pm Post subject: Landing and engine pictures

--

Fox5flyer
Guest

Posted: Sun Aug 10, 2008 6:04 am Post subject: Landing and engine pictures

That valve appears to be ready to let go at any time, Lynn.  Good catch!

Deke Morisse

Mikado Michigan

S5/Subaru/CAP 391+ TT

"The aim of an argument or discussion should not be victory, but progress."

- Joseph Joubert



---

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Sun Aug 10, 2008 8:16 am Post subject: Landing and engine pictures

Stevie Wonder could'a caught that one, Deke!



A little update on the repair process....the word back from Jabiru  

was not encouraging, and I'll leave it at that. (I want to first see  

if it's ok to pass along what was said)



At this point, I've got the engine completely disassembled. I had  

done a run-out check on the gear end of the crank, and found .0015"-. 

002" run-out. This could have caused the gear to fail, or could have  

been caused by the gear teeth being wedged between the crank, the  

remains of the gear, and the gear housing. Either way, run-out is run- 

out, and the Jabiru engine manual doesn't give the accepted amount of  

run-out. I'll have to consult with them on this measurement. Most  

other measurements are within specs, with the exception of the valves/ 

valve guides. I'll have a valve job done, or if I don't get a "warm  

fuzzy" feeling from what I perceive,(that is, do they do it, or send  

it out to their local automotive guy) I'll get the parts and do it  

myself or have it done by the local aircraft engine rebuilder, if he  

would even take it on. This guy is a good friend of my flight  

instructor, so we'll see what gives when that time rolls around.



There is always the possibility that I can get a factory rebuild, if  

it turns out that this crank is out of specs due to the run-out  

issue. The crank in all other aspects is perfect....no wear, bearings  

and crank bearing surfaces are primo, and it looks like it would  

easily go the rest of the 1500 hrs to the 2000 hr overhaul time.



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")



On Aug 10, 2008, at 10:03 AM, fox5flyer wrote:



[quote] 

 <fox5flyer(at)idealwifi.net>



 That valve appears to be ready to let go at any time, Lynn.  Good  

 catch!

 Deke Morisse

 Mikado Michigan

 S5/Subaru/CAP 391+ TT

 "The aim of an argument or discussion should not be victory, but  

 progress."

 - Joseph Joubert



 ---

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Fox5flyer
Guest

Posted: Sun Aug 10, 2008 8:48 am Post subject: Landing and engine pictures

Keep us updated, Lynn.

Stevie



do not archive



---

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Sun Aug 10, 2008 10:16 am Post subject: Landing and engine pictures

Geez, the signature "Stevie" had me scratching my head, Deke.....then  

it hit me.....it must be time for my nap!

Must be I've done WAY too many metric-to-inch conversions today, if  

I'm missing my own jokes.



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200

Status: "Condition grounded, but determined to try."  (Pink  

Floyd..."Learning to Fly")

do not archive





On Aug 10, 2008, at 12:47 PM, fox5flyer wrote:



[quote] 

 <fox5flyer(at)idealwifi.net>



 Keep us updated, Lynn.

 Stevie



 do not archive



 ---

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

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