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Firewall Boot for sealing Rudder Rods 701

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norriedh

Joined: 22 Jun 2006
Posts: 6
Location: Calgary, Canada

Posted: Mon Jan 21, 2008 8:55 pm Post subject: Firewall Boot for sealing Rudder Rods 701

Would appreciate suggestions for the firewall boots to seal the rudder rods on 701/Savannah. I followed up on Ben Haas's recommendation of the 2001 Yamaha Mountain Max snowmobile boots and bought them online at TEam Alpine in USA, but found them quite heavy and likely too stiff for our Canadian winter. Have searched all local auto part stores etc but havent found a substitute. 



Just had a new suggestion from another list--- the Rakboot from Products That Work -- and this looks really good --- has anyone here tried them? 



I was hoping to find one of those thin silicone boots as they remain flexible in the cold but so far havent found one.



Thanks



Douglas N

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victorbravo(at)sbcglobal.
Guest

Posted: Tue Jan 22, 2008 12:51 am Post subject: Firewall Boot for sealing Rudder Rods 701

Sailplane pilot to the rescue !!!  Make a conical "boot" out of 

rubberized or weatherized ripstop nylon. The stuff they make tent floors 

out of, or the stuff they make fabric inflatable boats out of. We used 

to use these as pushrod seals on racing gliders and they worked great.



Measure the perimeter of the opening on the firewall. Add 3 inches. That 

will be the large end of the seal, the extra 3 inches is to be able to 

open out the "base" so it can be glued or mounted to the firewall.



Then measure the length of the nosewheel steering rod. That will be the 

height of the cone.



Then draw a triangle on a piece of the weatherproof fabric using those 

dimensions. Make the two long legs equal length, not a "right triangle".



At the small end of the triangle make it about an inch thick instead of 

coming to a point. Carry that extra inch all the way back to the base. 

That extra inch wide strip on the side is important. Cut out the fabric 

into the shape of the piece.



Fold the triangular piece of fabric in half like a taco shell, with the 

fold line running along the long axis (you will then have a narrower 

"right triangle"), Have somebody sew the edges of the long side together 

about halfan inch in from the edge. Sew it two or three times, using 

heavy thread.



Open up the piece into a cone shape, then turn this cone inside out so 

the sewn seam is inside. Slide the boot over the pushrod and glue the 

base to the firewall using hi-temp silicone.Clamp the forward end of the 

boot to the middle of the steering pushrod using cable ties (Ty-Rap) or 

safety wire.



Do a function check to make sure the boot does not interfere with full 

rudder travel, etc.



Thanks to Rick Wagner and Larry Lichina, the two guys who installed this 

type of seal boot on my racing gliders a million years ago. RIP, 

Lichina. Wagner get your S**T together.



Bill the New Guy



norriedh wrote:

 	  Quote: 	
		   



 Would appreciate suggestions for the firewall boots to seal the rudder rods on 701/Savannah. I followed up on Ben Haas's recommendation of the 2001 Yamaha Mountain Max snowmobile boots and bought them online at TEam Alpine in USA, but found them quite heavy and likely too stiff for our Canadian winter.

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n801bh(at)netzero.com
Guest

Posted: Tue Jan 22, 2008 5:51 am Post subject: Firewall Boot for sealing Rudder Rods 701

I fly my 801 all the time in -25 f weather. Never had a bit of problem with them being stiff. I will go to the local dealer today and get a boot  and put it on a scale.but my guess is they weigh 5-8 oz at the most.  

do not archive

Ben Haas

N801BH

www.haaspowerair.com



-- "norriedh" <norried(at)shaw.ca> wrote:

--> Zenith-List message posted by: "norriedh" <norried(at)shaw.ca>



Would appreciate suggestions for the firewall boots to seal the rudder rods on 701/Savannah. I followed up on Ben Haas's recommendation of the 2001 Yamaha Mountain Max snowmobile boots and bought them online at TEam Alpine in USA, but found them quite heavy and likely too stiff for our Canadian winter. Have searched all local auto part stores etc but havent found a substitute. 



Just had a new suggestion from another list--- the Rakboot from Products That Work -- and this looks really good --- has anyone here tried them? 



I was hoping to find one of those thin silicone boots as they remain flexible in the cold but so far havent found one.



Thanks



Douglas N





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darrellhaas(at)gmail.com
Guest

Posted: Tue Jan 22, 2008 9:54 am Post subject: Firewall Boot for sealing Rudder Rods 701

I was told to get a boot that fits over the 4 wheel drive levers in an

older jeep etc. and then split them.

Darrell Haas

601 XL



On 1/21/08, norriedh <norried(at)shaw.ca> wrote:

 	  Quote: 	
		   



 Would appreciate suggestions for the firewall boots to seal the rudder rods on 701/Savannah. I followed up on Ben Haas's recommendation of the 2001 Yamaha Mountain Max snowmobile boots and bought them online at TEam Alpine in USA, but found them quite heavy and likely too stiff for our Canadian winter. Have searched all local auto part stores etc but havent found a substitute.



 Just had a new suggestion from another list--- the Rakboot from Products That Work -- and this looks really good --- has anyone here tried them?



 I was hoping to find one of those thin silicone boots as they remain flexible in the cold but so far havent found one.



 Thanks



 Douglas N





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=159695#159695

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norriedh

Joined: 22 Jun 2006
Posts: 6
Location: Calgary, Canada

Posted: Tue Jan 22, 2008 7:51 pm Post subject: Re: Firewall Boot for sealing Rudder Rods 701

Much appreciation to those who replied! Excellent ideas and I now have several approaches to try out. The "cone shape" from sailplane experience, I know I will use on at least another (different) application.



I think I will also weigh the snowmobile boots --- if they only weigh 8 oz and work in -25 F as Ben Haas says --- then they could really be worth a try -- although i am trying not to add weight if I can.



Thanks again



Douglas N



(do not archive)

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