 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
mhcrowder
Joined: 10 Jan 2006
Posts: 42
Location: Cary, NC
|
 Posted: Mon Jun 22, 2009 6:21 pm Post subject: 3300A Induction System |
 |
|
Well, after 28 hours I'm still battling high EGT's on Cylinders 3 & 5. during WOT. I've tried rotating the carburetor to try and compensate for the higher EGT temps on #3 and #5. On take-off I'm seeing 1450F+. As soon as I pull power back the temps drop to manageable levels although #3 & #5 are always the highest.
I've decided the next time I'm out at the airport I want to check/inspect the induction path on cylinders #3 & #5 for leaks. The Operator's manual and parts manual don't describe the process of removing the induction tubes from the induction plenum. So I have somewhere to start, has anyone removed the lower induction tubes and are there any "gotchas" I need to worry about? The parts manual mentions an O-Ring at this interface? I don't want to damage anything. Anyone have any pictures they'd care to share?
Thanks,
Michael
| | - The Matronics JabiruEngine-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?JabiruEngine-List |
|
|
|
| Back to top |
|
 |
Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
|
| Posted: Tue Jun 23, 2009 4:24 am Post subject: 3300A Induction System |
|
|
Yes, there are o-rings where the tubes plug into the plenum, and my
engine, when new, had a bit of sealant around the tubes at that point
also. When I rebuilt my engine, I smeared a bit of RTV around the
tubes where they enter the plenum, just to be sure of no leaks.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 681.2 hrs
Sensenich 62x46 Wood prop
Electroair direct-fire ignition system
Status: flying
On Jun 22, 2009, at 10:21 PM, sonex293 wrote:
| Quote: |
<sonex293(at)gmail.com>
Well, after 28 hours I'm still battling high EGT's on Cylinders 3 &
5. during WOT. I've tried rotating the carburetor to try and
compensate for the higher EGT temps on #3 and #5. On take-off I'm
seeing 1450F+. As soon as I pull power back the temps drop to
manageable levels although #3 & #5 are always the highest.
I've decided the next time I'm out at the airport I want to check/
inspect the induction path on cylinders #3 & #5 for leaks. The
Operator's manual and parts manual don't describe the process of
removing the induction tubes from the induction plenum. So I have
somewhere to start, has anyone removed the lower induction tubes
and are there any "gotchas" I need to worry about? The parts
manual mentions an O-Ring at this interface? I don't want to
damage anything. Anyone have any pictures they'd care to share?
Thanks,
Michael
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 49616#249616
|
| | - The Matronics JabiruEngine-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?JabiruEngine-List |
|
_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
|
| Back to top |
|
|
wypaul
Joined: 08 Jun 2007
Posts: 24
|
| Posted: Tue Jun 23, 2009 5:50 am Post subject: Re: 3300A Induction System |
|
|
Michael,
If you have the old style of exhaust with the gaskets at the head these will be likely suspects. An easy way to check for manifold leaks is to spray carb cleaner at all connects and joints while the engine is running. If you have a leak there will be a drop in RPM and the engine will run rough. I had the old style exhaust and mine would blow gaskets within a couple of hours of being replaced. I finally had the heads machined to take the new exhaust.
Paul Spackman
Q2 Jabiru 3300 #278
| | - The Matronics JabiruEngine-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?JabiruEngine-List |
|
_________________
Paul Spackman
Q-2 Jabiru 3300 |
|
| Back to top |
|
|
Clive J
Joined: 03 Nov 2007
Posts: 340
Location: UK
|
| Posted: Fri Jun 26, 2009 10:43 am Post subject: 3300A Induction System |
|
|
I had new gaskets blow in a 3300 after only a few hours, the holes
weren't machined deep enough so the set screws were bottoming out.
Thicker washers under the screws and it was OK.
Regards, Clive
--
| | - The Matronics JabiruEngine-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?JabiruEngine-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
