 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
KJ4CTZ
Joined: 23 Mar 2017
Posts: 5
|
 Posted: Tue Mar 28, 2017 5:01 pm Post subject: Help 503 side mount exhaust Muffler Mounting |
 |
|
Greetings, I have a 91 Kolb KXP with a Rotax 503 DCDI. The exhaust (Muffler) bracket was mounted to two Lord Mounts attached to 2 head bolts and the other side to the muffler bracket. This is a very poor mount and places a lot of stress on the Lord mounts. It looks terrible and if the mounts broke, well I do not even want to think about that!
How have you guys mounted your Muffler systems? Are there any kits available to purchase for proper muffler mounting? Pictures of your Muffler mounting would certainly be appreciated.
Thanks in advance
I would really like to find this kit (see photo) It used to be produced by CPS in California but they no longer carry this product.
| | - 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: |
| The kit I would like to find. |
|
| Filesize: |
77.09 KB |
| Viewed: |
6564 Time(s) |
|
|
|
| Back to top |
|
 |
gdhelton(at)gmail.com
Guest
|
| Posted: Wed Mar 29, 2017 4:04 am Post subject: Help 503 side mount exhaust Muffler Mounting |
|
|
Well, can't say as I've ever seen or heard of problem with the standard mount system which is actually a Rotax suggested design. But without a picture of what you've got it's hard to tell? Your might check with Leading Edge Airfoils. They've been a good supplier of Rotax stuff for a lot of years. They're online.
George H
14GDH
Have a great day!
| Quote: | On Mar 28, 2017, at 7:01 PM, KJ4CTZ <Kj4ctz(at)gmail.com> wrote:
Greetings, I have a 91 Kolb KXP with a Rotax 503 DCDI. The exhaust (Muffler) bracket was mounted to two Lord Mounts attached to 2 head bolts and the other side to the muffler bracket. This is a very poor mount and places a lot of stress on the Lord mounts. It looks terrible and if the mounts broke, well I do not even want to think about that!
How have you guys mounted your Muffler systems? Are there any kits available to purchase for proper muffler mounting? Pictures of your Muffler mounting would certainly be appreciated.
Thanks in advance
I would really like to find this kit (see photo) It used to be produced by CPS in California but they no longer carry this product.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=467774#467774
Attachments:
http://forums.matronics.com//files/exhaust_kit_395.jpg
|
| | - 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 |
|
|
|
| Back to top |
|
|
stuart(at)harnerfarm.net
Guest
|
| Posted: Wed Mar 29, 2017 4:42 am Post subject: Help 503 side mount exhaust Muffler Mounting |
|
|
Check out the pictures here:
http://harnerfarm.net/serenity/engine.html
This is a 447 but you might be able to do something similar to the 503. The
factory supplied the big aluminum plate. I made up the rest of it.
Post a picture of your current setup if you can.
Stuart
--
| | - 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 |
|
|
|
| Back to top |
|
|
herbgh(at)nctc.com
Guest
|
| Posted: Wed Mar 29, 2017 4:42 am Post subject: Help 503 side mount exhaust Muffler Mounting |
|
|
Speaking of head bolts...re torquing at one hour is important...and I
agree...the current method of attaching the exhaust has been working for
over 30 years...likely on over 1000 planes...Herb
On 03/29/2017 07:04 AM, George Helton wrote:
| Quote: |
Well, can't say as I've ever seen or heard of problem with the standard mount system which is actually a Rotax suggested design. But without a picture of what you've got it's hard to tell? Your might check with Leading Edge Airfoils. They've been a good supplier of Rotax stuff for a lot of years. They're online.
George H
14GDH
Have a great day!
> On Mar 28, 2017, at 7:01 PM, KJ4CTZ <Kj4ctz(at)gmail.com> wrote:
>
>
>
> Greetings, I have a 91 Kolb KXP with a Rotax 503 DCDI. The exhaust (Muffler) bracket was mounted to two Lord Mounts attached to 2 head bolts and the other side to the muffler bracket. This is a very poor mount and places a lot of stress on the Lord mounts. It looks terrible and if the mounts broke, well I do not even want to think about that!
>
> How have you guys mounted your Muffler systems? Are there any kits available to purchase for proper muffler mounting? Pictures of your Muffler mounting would certainly be appreciated.
>
> Thanks in advance
>
> I would really like to find this kit (see photo) It used to be produced by CPS in California but they no longer carry this product.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=467774#467774
>
>
> Attachments:
>
> http://forums.matronics.com//files/exhaust_kit_395.jpg
|
| | - 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 |
|
|
|
| Back to top |
|
|
Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
|
| Posted: Wed Mar 29, 2017 6:41 am Post subject: Re: Help 503 side mount exhaust Muffler Mounting |
|
|
The basis for our FF project started as a Firstar / 447 back in 1985, and while the original muffler bracket system does look terrible, it had held up with no problems. However all the bolts and rubber cushions were shot, and it seemed like a good time to do an upgrade. Here is how we redid it: Get a heavy duty muffler hangar kit from Advance or O'Reilly auto parts and use the rubber hangars. Now you can eliminate one of the original aluminum angles, you do need to weld a braced tab to the original bracket on the muffler.
Also, I have never liked using the standard springs that hold the muffler to the header, so we converted to something less likely to break and go through the prop.
| | - 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: |
222.04 KB |
| Viewed: |
6514 Time(s) |
|
| Description: |
|
| Filesize: |
170.35 KB |
| Viewed: |
6514 Time(s) |
|
| Description: |
|
| Filesize: |
172.74 KB |
| Viewed: |
6514 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 |
|
|
KJ4CTZ
Joined: 23 Mar 2017
Posts: 5
|
| Posted: Wed Apr 05, 2017 5:21 pm Post subject: Re: Help 503 side mount exhaust Muffler Mounting |
|
|
Hey, thanks a lot guys. These photos help. I do not have a photo of how my current exhaust (muffler) was mounted when I bought this plane and it is all apart right now.
They way it was mounted was with two isolation mounts (male thread on each side of a rubber block 3/4" in diameter) screwed into two of the head bolt stand-off nuts and the other end attached to a dual band muffler clamp. This setup was very weak and rested against the shroud of the engine. Put bluntly, it was ugly, weak and concerned me thinking it was going to break off and go through the fan.
Actually, I scraped a couple photos off a video I made of the walk-around of my Kolb Firestar 1
Video of walk-around here: https://youtu.be/j1gRQWckwdI?list=PL0k9OzgGAsmt12QQbYGeHYg7-pd7ifSMZ
See the below 2 attachments
Is there some place where I could purchase the aluminum angle pre-drilled for a 503?
I will be at Sun-N-Fun this Saturday so I will look around there.
Again, thanks for the help guys,
| | - 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: |
294.08 KB |
| Viewed: |
6434 Time(s) |
|
| Description: |
| Isolation mounts that are very weak. |
|
| Filesize: |
298.2 KB |
| Viewed: |
6434 Time(s) |
|
|
|
| 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
