 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
|
 Posted: Mon Nov 24, 2014 5:23 pm Post subject: 582 cylinders? |
 |
|
Doing the annual condition inspection on the FSII today and was not real happy with the cylinder walls. They have no stuck metal, they are not scuffed down to the depth of the hone marks, but still - I am not satisfied that they look like they ought to.
Trying to get the camera to look inside and produce decent pictures was about impossible, but the front and rear transfer ports in both cylinders have very similar looking marks above them. Also, these marks are only found above the various transfer ports.
Have a Rotax school certified buddy coming over tomorrow to take a look, meantime I thought I would throw them up for you guys to have a peek and offer some comments.
The pistons look great, rings are free, minimal carbon on the piston top and head underside. Plugs look slightly cool, but otherwise normal.
The owner had an overheat problem back in June, engine power sagged off, he landed and let it sit for a while, started back up and flew home with no problems. Engine has acquired about 10 hours since then with no problems noted. Hmmm....
Am I being too cautious? Or is it time to ship these jugs & pistons off to the shop? Inquiring minds want to know....
| | - The Matronics Kolb-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?Kolb-List |
|
| Description: |
|
| Filesize: |
104.55 KB |
| Viewed: |
3301 Time(s) |
|
| Description: |
|
| Filesize: |
65.76 KB |
| Viewed: |
3301 Time(s) |
|
| Description: |
|
| Filesize: |
114.79 KB |
| Viewed: |
3301 Time(s) |
|
| Description: |
|
| Filesize: |
137.69 KB |
| Viewed: |
3301 Time(s) |
|
| Description: |
|
| Filesize: |
84.31 KB |
| Viewed: |
3301 Time(s) |
|
| Description: |
|
| Filesize: |
122.39 KB |
| Viewed: |
3301 Time(s) |
|
_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
|
| Back to top |
|
 |
rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
|
| Posted: Mon Nov 24, 2014 6:04 pm Post subject: 582 cylinders? |
|
|
Richard, Any indication of piston slap when the engine is cold? I don't see anything that looks terrible, but that overheat makes my forehead wrinkle a bit. If you pull the cylinders your buddy should know the proper place to mic the piston to check for wear on the skirts. My best guess is that overheat was on the way to a seizure and a very tiny bit of metal was transferred and then scrubbed off when the engine was restarted after cooling. Mic'ing the pistons should tell you that.One of the best webinars that the EAA ever did was on reading Rotax piston and cylinder marks. You might want to look it up on Oshkosh 365 and review it.
Rick Girard
On Mon, Nov 24, 2014 at 7:23 PM, Richard Pike <thegreybaron(at)charter.net (thegreybaron(at)charter.net)> wrote:
| Quote: | --> Kolb-List message posted by: "Richard Pike" <thegreybaron(at)charter.net (thegreybaron(at)charter.net)>
Doing the annual condition inspection on the FSII today and was not real happy with the cylinder walls. They have no stuck metal, they are not scuffed down to the depth of the hone marks, but still - I am not satisfied that they look like they ought to.
Trying to get the camera to look inside and produce decent pictures was about impossible, but the front and rear transfer ports in both cylinders have very similar looking marks above them. Also, these marks are only found above the various transfer ports.
Have a Rotax school certified buddy coming over tomorrow to take a look, meantime I thought I would throw them up for you guys to have a peek and offer some comments.
The pistons look great, rings are free, minimal carbon on the piston top and head underside. Plugs look slightly cool, but otherwise normal.
The owner had an overheat problem back in June, engine power sagged off, he landed and let it sit for a while, started back up and flew home with no problems. Engine has acquired about 10 hours since then with no problems noted. Hmmm....
Am I being too cautious? Or is it time to ship these jugs & pistons off to the shop? Inquiring minds want to know....
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
My soul shall be joyful in the LORD; It shall rejoice in His salvation. Psalm 35:9
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=434584#434584
Attachments:
http://forums.matronics.com//files/front1jpg_medium_147.jpg
http://forums.matronics.com//files/front2jpg_medium_255.jpg
http://forums.matronics.com//files/front3jpg_medium_143.jpg
http://forums.matronics.com//files/rear1jpg_medium_128.jpg
http://forums.matronics.com//files/rear2jpg_medium_103.jpg
http://forums.matronics.com//files/rear3jpg_medium_123.jpg
===========
br> fts!)
r> > com" target="_blank">www.aeroelectric.com
w.buildersbooks.com" target="_blank">www.buildersbooks.com
p.com" target="_blank">www.homebuilthelp.com
e.com" target="_blank">www.mypilotstore.com
" target="_blank">www.mrrace.com
target="_blank">http://www.matronics.com/contribution
-Matt Dralle, List Admin.
===========
-List" target="_blank">http://www.matronics.com/Navigator?Kolb-List
===========
FORUMS -
_blank">http://forums.matronics.com
===========
|
--
Believe those who are seeking the truth, doubt those who find it.
-Andre Gide
[quote][b]
| | - The Matronics Kolb-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?Kolb-List |
|
_________________
The smallest miracle right in front of you is enough to make you happy.... |
|
| Back to top |
|
|
John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
|
| Posted: Mon Nov 24, 2014 8:57 pm Post subject: 582 cylinders? |
|
|
Richard:
That looks like a lot of scuffing in the photo.
I wouldn't fly it until it was rebuilt. My butt is worth more than an
overhaul.
The engine should have been looked at after the seizure, mild or not, before
it was flown. I think he is lucky it didn't seize on him during the last 10
hours of flight.
My own personal opinion.
john h
Titus, Alabama
--
| | - The Matronics Kolb-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?Kolb-List |
|
_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
|
| Back to top |
|
|
byoungplumbing(at)gmail.c
Guest
|
|
| 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
