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HOSE FOR ROTAX 912

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Goodone

Joined: 13 Sep 2008
Posts: 49

Posted: Sun Jan 31, 2010 11:03 am Post subject: HOSE FOR ROTAX 912

With spring somewhere in the future (I hope) I am thinking of replacing the hoses on my Rotax 912. The oil hose is almost 8 years old and the fuel hose about 4 years old.  I burn auto gas containing alcohol and wanted some advice from folks on what fuel and oil hose to use.

JOE RONCO

Joined: 04 Aug 2007
Posts: 31
Location: CENTENNIAL COLORADO

Posted: Sun Jan 31, 2010 11:52 am Post subject: HOSE FOR ROTAX 912

You should consider SAE30R7 for low pressure especially for gasohol. If the

fuel is pressurized then SAE30R9 is recommended. These can also be used for

oil I believe. See attached Goodyear cut sheets.



Hope this helps.



Joe R



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lgold(at)quantum-associat
Guest

Posted: Sun Jan 31, 2010 12:46 pm Post subject: HOSE FOR ROTAX 912

JOE,

These Goodyear hoses are all English sizes and are not metric. Do you see

any problems trying to fit them to a Rotax engine??

Les



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JOE RONCO

Joined: 04 Aug 2007
Posts: 31
Location: CENTENNIAL COLORADO

Posted: Sun Jan 31, 2010 1:51 pm Post subject: HOSE FOR ROTAX 912

LES: I don't know how they would fit as I have not used this hose. I just

did some research on material compatibility with gasohol and found the

SAE/Goodyear products. I guess it would depend if you are pushing the hose

over a barb and using a clamp or have a threaded hose end fitting. The later

may be available with an English dimension to fit onto the hose and a metric

thread to connect to the engine. 



Sorry I can't be of more help with this. 



Joe R



PS: Also be careful what material you use for fittings with gasohol. See the

following link for some information on material compatibility with gasohol

(Pages 37 & 3



http://tinyurl.com/yz3d9fm 



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rickofudall

Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA

Posted: Sun Jan 31, 2010 4:34 pm Post subject: HOSE FOR ROTAX 912

Why don't you go to a Chevy dealer and see what they're using for fuel line in the Flex fuel cars? If it will stand up to E 85 in the engine compartment of a car it should work fine in a plane. As for metric conversion there's most likely something close enough to work just fine even though it's measured in inches. 



Rick Girard



On Sun, Jan 31, 2010 at 3:46 PM, Joe Ronco <joe(at)halzel.com (joe(at)halzel.com)> wrote:

[quote] --> RotaxEngines-List message posted by: "Joe Ronco" <joe(at)halzel.com (joe(at)halzel.com)>

 

 LES: I don't know how they would fit as I have not used this hose. I just

 did some research on material compatibility with gasohol and found the

 SAE/Goodyear products. I guess it would depend if you are pushing the hose

 over a barb and using a clamp or have a threaded hose end fitting. The later

 may be available with an English dimension to fit onto the hose and a metric

 thread to connect to the engine.

 

 Sorry I can't be of more help with this.

 

 Joe R

 

 PS: Also be careful what material you use for fittings with gasohol. See the

 following link for some information on material compatibility with gasohol

 (Pages 37 & 3

 

 http://tinyurl.com/yz3d9fm

 

 --

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Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Mon Feb 01, 2010 4:48 am Post subject: HOSE FOR ROTAX 912

I am starting the Rotax 912 course this morning at S Miss Light aircraft.  (refresher course- two stroke, last week) I too am in the process of replacing  all the water hoses as they are even older than yours. The first ones  removed were in pretty good shape. I ended up buying a 2 meter length of 17mm  hose from Lockwood ( EXPENSIVE !) . I did not want to stretch  available 5/8 heater hose over the nipples although Ronnie,our instructor,says  you can do it. I have a thing about the proper parts. The fuel hoses I replaced  were the best Gates fuel injection hoses I could find,the oil hoses came  from CPS. This water hose replacement is going to be a real pain! Lots  of stuff to remove,corrosion to clean,etc but it has to be done.

                                                                      Dick Maddux

                                                                     912 UL

                                                                     Milton,Fl

  [quote][b]

rickofudall

Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA

Posted: Mon Feb 01, 2010 5:53 am Post subject: HOSE FOR ROTAX 912

Dick, I used silicone radiator hose from Sport Hoses in the UK when I replumbed my 582.



http://www.sporthoses.com/parts/

[url=http://www.sporthoses.com/parts/][/url]To save weight and money, I only used short lengths of hose and beaded tubes between. 

 



Rick Girard



On Mon, Feb 1, 2010 at 6:47 AM,  <Catz631(at)aol.com (Catz631(at)aol.com)> wrote:

[quote]      I am starting the Rotax 912 course this morning at S Miss Light aircraft.  (refresher course- two stroke, last week) I too am in the process of replacing  all the water hoses as they are even older than yours. The first ones  removed were in pretty good shape. I ended up buying a 2 meter length of 17mm  hose from Lockwood ( EXPENSIVE !) . I did not want to stretch  available 5/8 heater hose over the nipples although Ronnie,our instructor,says  you can do it. I have a thing about the proper parts. The fuel hoses I replaced  were the best Gates fuel injection hoses I could find,the oil hoses came  from CPS. This water hose replacement is going to be a real pain! Lots  of stuff to remove,corrosion to clean,etc but it has to be done.

                                                                      Dick Maddux

                                                                     912 UL

                                                                     Milton,Fl

   	  Quote: 	
		  



ist" target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	




[b]

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rampil

Joined: 04 May 2007
Posts: 870

Posted: Mon Feb 01, 2010 12:02 pm Post subject: Re: HOSE FOR ROTAX 912

The standard kit supplied hose was Gates SAE30R7 hose.  The R9

is hose with better specs for pressure and generally high endurance in 

an engine compartment.  FWF I am using stainless braided R9 hose, actually back to the tank selector valve, and further back, just uncovered R9. The stainless braided hose is also covered with firesleeve.



The kit was supplied with 5/16" and 1/4" hose, not metric, at least not in my kit.  Diameter adjustment is via hose clamp!



For oil lines I have switched to Aeroquip blue socketless hose, it has

superior specs to the R9.

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Ira N224XS

Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Tue Feb 02, 2010 3:57 am Post subject: HOSE FOR ROTAX 912

Ira,

  That is the correct sizes for the fuel  hoses but not the water  coolant hoses,they are 17 mm.

 I also went with the blue oil hose(from CPS)

                                                            Dick Maddux

                                                            Milton,Fl

  [quote][b]

rampil

Joined: 04 May 2007
Posts: 870

Posted: Tue Feb 02, 2010 7:04 am Post subject: Re: HOSE FOR ROTAX 912

Hi Dick,



You are absolutely correct, the coolant hose is 17 mm and should be

available from any hose shop.



I bought mine locally and just had to tell the clerk that it was for a marine

inboard engine since they don't sell to aircraft!  Same deal when I had

to originally buy inner tubes for the nose gear - the local tire shops will

only sell the tubes if they are for a go-kart, not an aircraft!



Ira

_________________
Ira N224XS

Goodone

Joined: 13 Sep 2008
Posts: 49

Posted: Wed Feb 03, 2010 9:11 am Post subject: Re: HOSE FOR ROTAX 912

I have just be told of a fuel line hose called Barricade Fuel Hose.  This is supposed to be a new product (at NAPA anyway) made by Gates and safe for use with fuel containing alcohol. Evidently it costs less than $2 per foot. Anyone using it?

lucien

Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM

Posted: Wed Feb 03, 2010 11:29 am Post subject: Re: HOSE FOR ROTAX 912

 	  rampil wrote: 	
		  Hi Dick,



You are absolutely correct, the coolant hose is 17 mm and should be

available from any hose shop.



I bought mine locally and just had to tell the clerk that it was for a marine

inboard engine since they don't sell to aircraft!  Same deal when I had

to originally buy inner tubes for the nose gear - the local tire shops will

only sell the tubes if they are for a go-kart, not an aircraft!



Ira 	




May I ask what shop that was and where?

I havn't been able to locate 17mm heater hose anywhere in America except for Rotax dealers, so naturally I'm highly interested in where you obtained it?...



Thanks,

LS

_________________
LS
Titan II SS

Goodone

Joined: 13 Sep 2008
Posts: 49

Posted: Wed Feb 03, 2010 12:47 pm Post subject: Re: HOSE FOR ROTAX 912

Please note that I am talking about fuel line. I was told that the product is new and that NAPA stores are stalking it.

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Feb 03, 2010 4:05 pm Post subject: HOSE FOR ROTAX 912

Anything using a synthetic butyrate rubber should be ok.



Noel



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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Feb 03, 2010 4:56 pm Post subject: HOSE FOR ROTAX 912

Try any Japanese car dealership or PWC outlet.

Noel



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Kitfox III-A
Aerocet 1100 Floats

Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Thu Feb 04, 2010 5:58 am Post subject: HOSE FOR ROTAX 912

>  May I ask what shop that was and where?

      I havn't been able to locate 17mm heater hose anywhere in America except for Rotax

      dealers, so naturally I'm highly interested in where you obtained it?...<

  

 I am also in the process of replacing my hoses but I also could not find any 17mm hose in the US . I finally bit the bullet and paid the money to Lockwood and bought a 6 meter piece.

 Today I am going to try and find the formed hose that goes from the spyder to number three cylinder. That little jewell is almost $50 from Rotax. If I can find this formed piece in 5/8 heater at NAPA, then 5/8 it will be.

  I was able to find some CT wide band clamps at Grainger. It was about $6 for 10 of them vs $6 a piece at the Rotax dealer. These will replace my old screw type which really chewed up the hoses

  I am sure glad I started the hose replacement as they were real bad. This job will certainly take awhile

                                                                    Dick Maddux

                                                                    912 UL

                                                                    Milton,Fl



  [quote][b]

Goodone

Joined: 13 Sep 2008
Posts: 49

Posted: Thu Feb 04, 2010 11:52 am Post subject: Re: HOSE FOR ROTAX 912

From the information I have been reading on this site it seems to me that Barricade Fuel Hose is a good material to use on the 912. Still not sure if there is  reasonable alternative to the high cost 13mm oil hose available at aviation supply websites, but hope that there is.

rampil

Joined: 04 May 2007
Posts: 870

Posted: Thu Feb 04, 2010 1:06 pm Post subject: Re: HOSE FOR ROTAX 912

Barricade is a couple of years old and is promoted as a "green"

product because it has low permeance to fuel vapor.  Otherwise

it seems to be the same spec as the standard gate 30R7 hose.

The Gates website did not mention any special resistance to abrasion,

heat, wear, etc. Like other Gates hose it is fine for E10.  I don't

think we will be seeing anyone using E85 in aircraft now or in the 

future due to the low energy density and the high vapor pressure.

_________________
Ira N224XS

sdemeyer

Joined: 31 Jul 2009
Posts: 45

Posted: Thu Feb 18, 2010 12:57 pm Post subject: Re: HOSE FOR ROTAX 912

 	  Dick Maddux wrote: 	
		  >  

 Today I am going to try and find the formed hose that goes from the spyder to number three cylinder. That little jewell is almost $50 from Rotax. If I can find this formed piece in 5/8 heater at NAPA, then 5/8 it will be.

  This job will certainly take awhile

            ï¿½           ï¿½            ï¿½           ï¿½           ï¿½      Dick Maddux

            ï¿½           ï¿½            ï¿½           ï¿½           ï¿½      912 UL

            ï¿½           ï¿½            ï¿½           ï¿½           ï¿½      Milton,Fl



	




Dick, just curious if you were able to find the formed hose. I'm in the same predicament.



Scott

Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Fri Feb 19, 2010 5:52 am Post subject: HOSE FOR ROTAX 912

Scott,

  I did find the 5/8 "formed hose, however, I had to insert an internal spring to keep it from collapsing as the bend in the hose was not quite enough. I actually used the spring that was in the old hose. The prior owner had used a straight piece of 5/8 , inserted springs, and bent it to shape. This lasted about 15 years so hopefully it should work for me. I don't know what material the spring was made of.

  The NAPA store did tell me that they have hoses that include an internal spring and you can bend them to shape.

  I used the old hoses as a pattern for the new hoses. The clearances were quite close to the exhaust pipes on my plane so I wrapped the exhaust pipes with 1' wrap and used ss tie wraps to secure them. They look nice so hopefully it should cut down on the heat on those hoses.

                                                           Dick Maddux

                                                           Milton,Fl

                                           

  [quote][b]

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