|
Matronics Email Lists Web Forum Interface to the Matronics Email Lists
|
View previous topic :: View next topic |
Author |
Message |
lucien
Joined: 03 Jun 2007 Posts: 721 Location: santa fe, NM
|
Posted: Mon Feb 01, 2010 5:49 am Post subject: Speaking of coolant hoses... |
|
|
Hi all,
While we're on the subject of coolant hoses....
Does anyone know of a source for the aluminum pipes specified by Rotax for extending/splicing coolant hoses? This is in the installation manual in section 12.6 "Requirements on the cooling system" - they mention aluminum pipes with bulges on the end.
I'm utterly unable to locate anything like this or even an equivalent and I'm getting tired of the blank faces staring back at me when I ask about these locally or anywhere for that matter.
Where on earth can one locate pipes suitable for use for splicing coolant hoses? I'm starting to get desperate because this really needs to be done on my plane ASAP and I need these to make proper fitting hoses...
Even equivalents without the bulges would be fine - anything, I don't care. I just need something that meets the temp/pressure/corrosion requirements for coolant...
Thanks,
LS
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ LS
Titan II SS |
|
Back to top |
|
|
rickofudall
Joined: 19 Sep 2009 Posts: 1392 Location: Udall, KS, USA
|
Posted: Mon Feb 01, 2010 6:46 am Post subject: Speaking of coolant hoses... |
|
|
Lucien, Send me the specs for what you need and I'll see if I can round up the material and make them. Here's a photo of mine on my 582.
Rick Girard
On Mon, Feb 1, 2010 at 7:49 AM, lucien <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)> wrote:
Quote: | --> RotaxEngines-List message posted by: "lucien" <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)>
Hi all,
While we're on the subject of coolant hoses....
Does anyone know of a source for the aluminum pipes specified by Rotax for extending/splicing coolant hoses? This is in the installation manual in section 12.6 "Requirements on the cooling system" - they mention aluminum pipes with bulges on the end.
I'm utterly unable to locate anything like this or even an equivalent and I'm getting tired of the blank faces staring back at me when I ask about these locally or anywhere for that matter.
Where on earth can one locate pipes suitable for use for splicing coolant hoses? I'm starting to get desperate because this really needs to be done on my plane ASAP and I need these to make proper fitting hoses...
Even equivalents without the bulges would be fine - just need something that meets the temp/pressure/corrosion requirements for coolant...
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284323#284323
===========
-List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
|
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
Description: |
|
Filesize: |
102.28 KB |
Viewed: |
14607 Time(s) |
|
_________________ The smallest miracle right in front of you is enough to make you happy.... |
|
Back to top |
|
|
pwmac(at)sisna.com Guest
|
Posted: Mon Feb 01, 2010 6:50 am Post subject: Speaking of coolant hoses... |
|
|
Hi, LS
What we do: Buy the appropriate piece of Al tubing from Aircraft Spruce then take it to the radiator shop and have the bead it on both ends. If the radiator shop does not have a beader call around to various auto & machine shops.
PW
On Mon, Feb 1, 2010 at 5:49 AM, lucien <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)> wrote:
[quote]--> RotaxEngines-List message posted by: "lucien" <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)>
Hi all,
While we're on the subject of coolant hoses....
Does anyone know of a source for the aluminum pipes specified by Rotax for extending/splicing coolant hoses? This is in the installation manual in section 12.6 "Requirements on the cooling system" - they mention aluminum pipes with bulges on the end.
I'm utterly unable to locate anything like this or even an equivalent and I'm getting tired of the blank faces staring back at me when I ask about these locally or anywhere for that matter.
Where on earth can one locate pipes suitable for use for splicing coolant hoses? I'm starting to get desperate because this really needs to be done on my plane ASAP and I need these to make proper fitting hoses...
Even equivalents without the bulges would be fine - just need something that meets the temp/pressure/corrosion requirements for coolant...
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284323#284========================
, 7-Day Browse, Chat, FAQ,
="http://www.matronics.com/Navigator?RotaxEngines-List" target="_blank"=========
http://forums.mle, List Admin.
=====
[b]
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
|
|
Back to top |
|
|
lucien
Joined: 03 Jun 2007 Posts: 721 Location: santa fe, NM
|
Posted: Mon Feb 01, 2010 7:11 am Post subject: Re: Speaking of coolant hoses... |
|
|
ah hah!... thanks gentlemen.... I think I've finally made the mental leap here...
What is the appropriate grade tubing to use? Rick, in your picture I see what I think is 6061-0 printed on one of your tubes?
Let me see how long of a length I need for the top tube, Ill try to measure what I need this week.
I'll look for a radiator shop, but it's doubtful (Santa Fe is kind of like living on Mars as far as things like this go). Maybe down in Albuquerque....
Thanks,
LS
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ LS
Titan II SS |
|
Back to top |
|
|
blackmore(at)platinum.ca Guest
|
Posted: Mon Feb 01, 2010 7:48 am Post subject: Speaking of coolant hoses... |
|
|
A muffler shop might even have that kind of expander ( worth a call!) Way up here in the bush I have seen people (me) weld/tack a little piece of strapping on the pipe then push the hose over and put the clamp on the other side of it, works the same with the same results
Chris
[i]----
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
|
|
Back to top |
|
|
lucien
Joined: 03 Jun 2007 Posts: 721 Location: santa fe, NM
|
Posted: Mon Feb 01, 2010 8:00 am Post subject: Re: Speaking of coolant hoses... |
|
|
blackmore(at)platinum.ca wrote: | A muffler shop might even have that kind of expander ( worth a call!) Way up here in the bush I have seen people (me) weld/tack a little piece of strapping on the pipe then push the hose over and put the clamp on the other side of it, works the same with the same results
Chris
[i]---- |
Ok, will call around.
I've thought about just flaring the ends myself if I could find an appropriate tool. Smoothing it off and then pushing the hose over that.
What thickness of tubing you guys think would be sufficient? I guess 6061 on the grade is probably good enough, just wondering about the thickness?
If I come up snake eyes, Rick, I'll just have you make a pair of em for me
Thanks,
LS
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ LS
Titan II SS |
|
Back to top |
|
|
blackmore(at)platinum.ca Guest
|
Posted: Mon Feb 01, 2010 8:53 am Post subject: Speaking of coolant hoses... |
|
|
Another thought.. Take a piece to the 6061 to the muffler shop and have them expand a little ring heat it up at home and shrink it onto the pipe!
[i]----
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
|
|
Back to top |
|
|
rickofudall
Joined: 19 Sep 2009 Posts: 1392 Location: Udall, KS, USA
|
Posted: Mon Feb 01, 2010 9:14 am Post subject: Speaking of coolant hoses... |
|
|
I checked the spruce tables for 3003-O. They say 1" X .035 wall has a pressure rating of 305 psi with a safety factor of 2. I think the Rotax coolant system at 17 psi isn't going to phase the tubing at all. I used 1" X .065 6061-O because that was what was available at the Yard Store. I do the beading with a Parker tube beader.
Rick Girard
On Mon, Feb 1, 2010 at 9:11 AM, lucien <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)> wrote:
[quote] --> RotaxEngines-List message posted by: "lucien" <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)>
ah hah!... thanks gentlemen.... I think I've finally made the mental leap here...
What is the appropriate grade tubing to use? Rick, in your picture I see what I think is 6061-0 printed on one of your tubes?
Let me see how long of a length I need for the top tube, Ill try to measure what I need this week.
I'll look for a radiator shop, but it's doubtful (Santa Fe is kind of like living on Mars as far as things like this go). Maybe down in Albuquerque....
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284353#284353
===========
-List" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
[b]
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ The smallest miracle right in front of you is enough to make you happy.... |
|
Back to top |
|
|
rampil
Joined: 04 May 2007 Posts: 870
|
Posted: Mon Feb 01, 2010 12:04 pm Post subject: Re: Speaking of coolant hoses... |
|
|
Beaders and flare tools are frequent components of most EAA chapter
shops I have seen. The tools are not exorbitant at Harbor Freight, etc.
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ Ira N224XS |
|
Back to top |
|
|
craig(at)craigandjean.com Guest
|
|
Back to top |
|
|
Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
|
Posted: Mon Feb 01, 2010 7:09 pm Post subject: Speaking of coolant hoses... |
|
|
Lucien a good FBO should have an expander... only takes a few seconds to put
a bulb in a tube.
Noel
--
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
|
Back to top |
|
|
Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
|
Posted: Tue Feb 02, 2010 8:49 am Post subject: Speaking of coolant hoses... |
|
|
Do you really want to trust aluminium that has been heated... unless you are a specialist welder. Even comparatively low heating can ruin the crystalline structure of the metal.
Noel
From: owner-rotaxengines-list-server(at)matronics.com [mailto:owner-rotaxengines-list-server(at)matronics.com] On Behalf Of Chris Blackmore
Sent: February 1, 2010 12:53 PM
To: rotaxengines-list(at)matronics.com
Subject: Re: Re: Speaking of coolant hoses...
Another thought.. Take a piece to the 6061 to the muffler shop and have them expand a little ring heat it up at home and shrink it onto the pipe!
-------Original Message-------
From: lucien (lstavenhagen(at)hotmail.com)
Date: 01/02/2010 9:08:41 AM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Speaking of coolant hoses...
--> RotaxEngines-List message posted by: "lucien" <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)>
blackmore(at)platinum.ca wrote:
Quote: | A muffler shop might even have that kind of expander ( worth a call!) Way up here in the bush I have seen people (me) weld/tack a little piece of strapping on the pipe then push the hose over and put the clamp on the other side of it, works the same with the same results
|
Ok, will call around.
I've thought about just flaring the ends myself if I could find an appropriate tool. Smoothing it off and then pushing the hose over that.
What thickness of tubing you guys think would be sufficient? I guess 6061 on the grade is probably good enough, just wondering about the thickness?
If I come up snake eyes, Rick, I'll just have you make a pair of em for me
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284367#284367
=============
he RotaxEngines-List Email Forum -
or?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
=============
sp; - MATRONICS WEB FORUMS -
p://forums.matronics.com
=============
sp; - List Contribution Web Site -
sp; -Matt Dralle, List Admin.
ution">http://www.matronics.com/contribution
=============
Quote: | http://www.matronics.com/Navigator?RotaxEngines-List | 0123456789
[quote][b]
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
|
Back to top |
|
|
VIXEN
Joined: 23 Nov 2009 Posts: 35
|
Posted: Tue Feb 02, 2010 1:39 pm Post subject: Speaking of coolant hoses... |
|
|
What is wrong with using automotive hoses on the Rotax? Many of the late model vehicles have very creative hose assemblies and if you visit the warehouse section of your local auto supplier you can quite often find a very nicely shaped hose with just the right preformed bends that eliminates many of the connected elbows necessary when using straight hoses. It seems to me that one fairly continuous formed hose if safer than connected bits. After all, how many of us change out our auto hoses every few years and how many actually fail. I believe the pressures would be quite similar to modern vehicles. Comments?
On Tue, Feb 2, 2010 at 8:49 AM, Noel Loveys <noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)> wrote:
[quote]
Do you really want to trust aluminium that has been heated... unless you are a specialist welder. Even comparatively low heating can ruin the crystalline structure of the metal.
Noel
From: owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com) [mailto:owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com)] On Behalf Of Chris Blackmore
Sent: February 1, 2010 12:53 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Re: Speaking of coolant hoses...
Another thought.. Take a piece to the 6061 to the muffler shop and have them expand a little ring heat it up at home and shrink it onto the pipe!
-------Original Message-------
From: lucien (lstavenhagen(at)hotmail.com)
Date: 01/02/2010 9:08:41 AM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Speaking of coolant hoses...
--> RotaxEngines-List message posted by: "lucien" <lstavenhagen(at)hotmail.com (lstavenhagen(at)hotmail.com)>
blackmore(at)platinum.ca wrote:
Quote: | A muffler shop might even have that kind of expander ( worth a call!) Way up here in the bush I have seen people (me) weld/tack a little piece of strapping on the pipe then push the hose over and put the clamp on the other side of it, works the same with the same results
|
Ok, will call around.
I've thought about just flaring the ends myself if I could find an appropriate tool. Smoothing it off and then pushing the hose over that.
What thickness of tubing you guys think would be sufficient? I guess 6061 on the grade is probably good enough, just wondering about the thickness?
If I come up snake eyes, Rick, I'll just have you make a pair of em for me
Thanks,
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284367#284367
=============
he RotaxEngines-List Email Forum -
or?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
=============
sp; - MATRONICS WEB FORUMS -
p://forums.matronics.com
=============
sp; - List Contribution Web Site -
sp; -Matt Dralle, List Admin.
ution">http://www.matronics.com/contribution
=============
012 34567 89
0
[b]
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
|
|
Back to top |
|
|
rickofudall
Joined: 19 Sep 2009 Posts: 1392 Location: Udall, KS, USA
|
Posted: Tue Feb 02, 2010 2:25 pm Post subject: Speaking of coolant hoses... |
|
|
Lucien, This is Spruce's table for 3003-O tubing. The least of the tubing used for lines. For formability, I'd go with 5052-O, it's not heat treated and you can get it both in .035 and .049. I'd be perfectly happy with the .035. If you aren't worried about weight, go with copper tubing and polish it up. When I ran air lines in my shop I checked the spec on the thinest wall copper in 3/4" and it was rated to over 1000 psi.
Rick
O.D. (In.) Wall Thickness
Max. Working Pressure* (PSI)
Part No.
Price Per Ft. Price Per 50Ft.
Buy 1/8 .0251820 03-40200$0.41 $16.40 3/16 .028880 03-40300$0.40 $16.00 1/4 .032795 03-40400$0.46 $18.40 5/16 .035630 03-40500$0.61 $24.40 3/8 .035520 03-40600$0.63 $25.20 1/2 .035390 03-40700$0.88 $35.20 5/8 .035305 03-40800$0.99 $39.60 *Safety factor of 2.
On Tue, Feb 2, 2010 at 3:38 PM, Don Hudgeon <don(at)hudgeon.com (don(at)hudgeon.com)> wrote:
[quote]What is wrong with using automotive hoses on the Rotax? Many of the late model vehicles have very creative hose assemblies and if you visit the warehouse section of your local auto supplier you can quite often find a very nicely shaped hose with just the right preformed bends that eliminates many of the connected elbows necessary when using straight hoses. It seems to me that one fairly continuous formed hose if safer than connected bits. After all, how many of us change out our auto hoses every few years and how many actually fail. I believe the pressures would be quite similar to modern vehicles. Comments?
On Tue, Feb 2, 2010 at 8:49 AM, Noel Loveys <noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)> wrote:
[quote]
Do you really want to trust aluminium that has been heated... unless you are a specialist welder. Even comparatively low heating can ruin the crystalline structure of the metal.
Noel
From: owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com) [mailto:owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com)] On Behalf Of Chris Blackmore
Sent: February 1, 2010 12:53 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Re: Speaking of coolant hoses...
Another thought.
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ The smallest miracle right in front of you is enough to make you happy.... |
|
Back to top |
|
|
Float Flyr
Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
|
Posted: Tue Feb 02, 2010 4:32 pm Post subject: Speaking of coolant hoses... |
|
|
I have automotive hoses on my engine. I do have some of the pre-shaped pieces held together with hard copper fittings. Originally when the plane had the R582 it had a heater plumbed in with 1 / 2” hard copper pipe... no leaks and no problems.
The only problem I had was getting exact metric sizes, even for that there are workarounds. The minor problem I have now is the oil cooler I have uses 5/8” fittings while the engine fittings are much smaller.
Noel
From: owner-rotaxengines-list-server(at)matronics.com [mailto:owner-rotaxengines-list-server(at)matronics.com] On Behalf Of Don Hudgeon
Sent: February 2, 2010 6:09 PM
To: rotaxengines-list(at)matronics.com
Subject: Re: Re: Speaking of coolant hoses...
What is wrong with using automotive hoses on the Rotax? Many of the late model vehicles have very creative hose assemblies and if you visit the warehouse section of your local auto supplier you can quite often find a very nicely shaped hose with just the right preformed bends that eliminates many of the connected elbows necessary when using straight hoses. It seems to me that one fairly continuous formed hose if safer than connected bits. After all, how many of us change out our auto hoses every few years and how many actually fail. I believe the pressures would be quite similar to modern vehicles. Comments?
On Tue, Feb 2, 2010 at 8:49 AM, Noel Loveys <noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)> wrote:
Do you really want to trust aluminium that has been heated... unless you are a specialist welder. Even comparatively low heating can ruin the crystalline structure of the metal.
Noel
From: owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com) [mailto:owner-rotaxengines-list-server(at)matronics.com (owner-rotaxengines-list-server(at)matronics.com)] On Behalf Of Chris Blackmore
Sent: February 1, 2010 12:53 PM
To: rotaxengines-list(at)matronics.com (rotaxengines-list(at)matronics.com)
Subject: Re: Re: Speaking of coolant hoses...
Another thought.. Take a piece to the 6061 to the muffler shop and have them expand a little ring heat it up at home and shrink it onto the pipe!
[i]----
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
|
Back to top |
|
|
lucien
Joined: 03 Jun 2007 Posts: 721 Location: santa fe, NM
|
Posted: Wed Feb 03, 2010 6:29 am Post subject: Re: Speaking of coolant hoses... |
|
|
rickofudall wrote: | Lucien, This is Spruce's table for 3003-O tubing. The least of the tubing used for lines. For formability, I'd go with 5052-O, it's not heat treated and you can get it both in .035 and .049. I'd be perfectly happy with the .035. If you aren't worried about weight, go with copper tubing and polish it up. When I ran air lines in my shop I checked the spec on the thinest wall copper in 3/4" and it was rated to over 1000 psi.
Rick
|
5052-0 .049 is what I went ahead and ordered with the beader, so that's what I'll be using. I thought about copper but I've also heard about possible corrosion problems with it. And I'm probably not going to need lengths that long to justify it, so just went with Al.
Hope to get it before the weekend so I can get the job done....
LS
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ LS
Titan II SS |
|
Back to top |
|
|
lucien
Joined: 03 Jun 2007 Posts: 721 Location: santa fe, NM
|
Posted: Wed Feb 03, 2010 6:38 am Post subject: Re: Speaking of coolant hoses... |
|
|
VIXEN wrote: | What is wrong with using automotive hoses on the Rotax? Many of the late model vehicles have very creative hose assemblies and if you visit the warehouse section of your local auto supplier you can quite often find a very nicely shaped hose with just the right preformed bends that eliminates many of the connected elbows necessary when using straight hoses. It seems to me that one fairly continuous formed hose if safer than connected bits. After all, how many of us change out our auto hoses every few years and how many actually fail. I believe the pressures would be quite similar to modern vehicles. Comments?
|
Well that's the problem. I've not been able to find any pre-formed coolant hose that'll fit my particular installation. My blood pressure now just starts going into the yellow zone when I try to find these, so I've just accepted that I'm going to have to manufacture my own.
JD (the original builder) got lucky on the radiator-to-water-pump hose originally but the top hose is fabricated with a bypass valve for a cabin heat system. I can locate 90 degree and one 135 degree bend (needed on the top hose) tho but nothing that'll fit alone.
Rotax actually recommends using pipes in the installation manual for longer runs instead of long hoses so I don't feel bad about splicing them.
As for the type of hose, Rotax dealers have told me to just use a good quality automotive radiator hose, there's no Unobtainium material requirement here fortunately, just regular automotive stuff suffices.
I prefer Gates and fortunately that's available locally (gates is what's on the plane right now and it's still in good shape except for the one tube that's a little chewed up on one end). The specs on the hose are in the installation manual too.
Looking forward to finally getting this done when I get the tools. That one hose has been a splinter in my mind for a while and it'll be good to finally extract it
LS
| - The Matronics RotaxEngines-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?RotaxEngines-List |
|
_________________ LS
Titan II SS |
|
Back to top |
|
|
Goodone
Joined: 13 Sep 2008 Posts: 49
|
Posted: Wed Feb 03, 2010 1:18 pm Post subject: Re: Speaking of coolant hoses... |
|
|
I am familiar with Rotax 912 powered homebuilt aircraft using coolant lines made of corrugated stainless steel tubing (CSST) like that used for natural gas installations in your home. This stuff is very flexible and would seem to be be a good candidate for use in aircraft cooling systems. The flexible CSST is attached at its end with short rubber sections of coolant hose and clamps.
| - The Matronics RotaxEngines-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?RotaxEngines-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
|