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Firewall Forward fuel and oil lines

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dougsnash(at)yahoo.com
Guest

Posted: Fri Feb 29, 2008 4:44 pm Post subject: Firewall Forward fuel and oil lines

I am currently sorting out my firewall forward

installation.  Here in Canada, we are required to

fireproof all of our Fuel and oil lines on

experimental installations.



What flavour of hoses are commonly being used for

these fuel and oil line on the Zenith products?  I

have been looking at the Aeroquip hoses listed on

Aircraft Spruce but don't want to spend $50-$100 on

hoses and not get the right ones.



Any Guidance?



Doug MacDonald

CH-701 Scratch Builder

Rotax 912UL

NW Ontario, Canada



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psm(at)att.net
Guest

Posted: Fri Feb 29, 2008 6:44 pm Post subject: Firewall Forward fuel and oil lines

Hi Doug,



My kit and FWF came with "Garden variety" rubber hose.  No, not 

garden hose, but normal automotive fuel hose.  It has a 5/8 inch 

outside diameter and 1/4 inch I.D.



It is all covered with "fire sleeve" in the area forward of the 

firewall.  You can order that stuff from A/S.



Good luck,



Paul

XL fuselage



At 11:54 AM 2/29/2008, you wrote:



 	  Quote: 	
		  What flavour of hoses are commonly being used for

these fuel and oil line on the Zenith products?  I

have been looking at the Aeroquip hoses listed on

Aircraft Spruce but don't want to spend $50-$100 on

hoses and not get the right ones.

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ricklach

Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.

Posted: Tue Mar 04, 2008 9:18 am Post subject: Re: Firewall Forward fuel and oil lines

Hi Doug,



I thought you would get more feed-back on your request. When I got my 701/912S it had standard auto fuel lines with screw clamps and fire sleeve. It looked nice but I was not comfortable with it. The Oil lines were what the factory supplied with the kit. The oil lines looked and I’m sure were very acceptable as compared to the fuel line. At annual this year it was time to replace all the hoses, fuel, oil and water. I spent a little time searching for a solution that met what I thought was aircraft quality but did not want to spend the money (and I thought was an overkill) for a complete certified aircraft system. So here is what I’ve decided to do. 



Fuel:	I went with MIL-DTL-6000(old MIL-H-6000B) from Genuine Aircraft Hardware Co. (www-gen-aircraft-hardware.com/888-247-2738). It’s a push-on/screw clamp system that dose not require any special or expensive hose ends. It’s has a working pressure of 500PSI and a burst pressure of 1000PSI, it is also compatible with oil, coolant, alcohol, fuel and water. I think it’s much better than the original NAPA fuel hose. I then added fire sleeve and I don’t worry about a cracked line leaking fuel anymore.



Oil:	I went with the” Parker HI-Temp Push-Lok #836-8” P.N 181411 oil line from California Power systems (www.800-airwolf.com/800-247-9653). It’s not an aircraft part per-say but after reading through the parker (www.parker.com) web site I was comfortable that it was a good industrial hose that would do the job. Again it’s a push-on/screw clamp system just like the factory system requiring no new expensive fittings.



Water:	I went with Flexfab (www.flexfab.com) Silicone Hose P.N. 5526-100 for the Radiator hoses and 5526-075 for the cyl-head to tank/water pump hoses on the engine. It has a burst pressure of 175 to 200PSI. I got the 55-26-100 from Zenith and the other from a local supplies in Bakersfield.



I hope this is of some help to you.

Rick

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maarten versteeg

Joined: 15 May 2007
Posts: 37
Location: San Antonio

Posted: Wed Mar 05, 2008 6:33 am Post subject: Firewall Forward fuel and oil lines

Hello Rick,



I must admit that I am still very green with respect to

oil, fuel and coolant hoses, but I will get to the point

where I will have to make decisions concerning hoses.

You suggest the MIL-DTL-6000 to be used for the fuel

system. When I look in the ACS catalog this hose is

listed as "MIL6000 OIL AND COOLANT HOSE", "designed to

handle the effects of oil, alcohol, coolant, and water",

but it also lists "Not recommended for fuel lines".

Is the ACS catalog overly cautious here or do you have

another information source?



Regards,	

	Maarten

	601xl plansbuilding wings



 	  Quote: 	
		   Time: 09:21:24 AM PST US

 Subject: Re: Firewall Forward fuel and oil lines

 From: "ricklach" <rick(at)ravengear.us>

 

 

 Hi Doug,

 

...
	


 	  Quote: 	
		   

 Fuel:	I went with MIL-DTL-6000(old MIL-H-6000B) from Genuine Aircraft Hardware

 Co. (www-gen-aircraft-hardware.com/888-247-2738). Its a push-on/screw clamp system

 that dose not require any special or expensive hose ends. Its has a working

 pressure of 500PSI and a burst pressure of 1000PSI, it is also compatible with

 oil, coolant, alcohol, fuel and water. I think its much better than the original

 NAPA fuel hose. I then added fire sleeve and I dont worry about a cracked

 line leaking fuel anymore.

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_________________
Maarten Versteeg
601XL scratch building wings

ricklach

Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.

Posted: Wed Mar 05, 2008 2:08 pm Post subject: Re: Firewall Forward fuel and oil lines

Hi Maarten,

I have read that in the ACS catalog also. I also read in the “Genuine Aircraft Hardware Co.” catalog that it was compatible with fuel, so I started calling around. They were quite confident that the new “6000” series hose was compatible with fuel and sell it for that application all the time. It was the old “6000” hose that had an issue. I’m not sure what the issue was or is but the new “6000” is suppose to be Fuel compatible.



Rick

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