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XL Upper engine mount 6B6-4

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Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Mon Apr 28, 2008 5:19 pm Post subject: XL Upper engine mount 6B6-4

I've picked up a few references to a "New, triangular upper engine mount fitting."  I took delivery of my kit in May 2006.  Has there been a redesign of the mount since then that I am not aware of?



Tim



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Champ L16A flying
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PatrickW

Joined: 27 Oct 2006
Posts: 380
Location: Fort Worth, Texas

Posted: Mon Apr 28, 2008 5:38 pm Post subject: Re: XL Upper engine mount 6B6-4

 	  Tim Juhl wrote: 	
		  I've picked up a few references to a "New, triangular upper engine mount fitting." 	




http://picasaweb.google.com/Patrick.Hoyt/Zenith601XLBRSBrackets



Patrick

XL/Corvair

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Tue Apr 29, 2008 11:01 am Post subject: Re: XL Upper engine mount 6B6-4

Patrick,

I looked at your pix of the BRS-ready upper engine mount brackets.  I guess my question is whether they are only intended for use if installation of a BRS chute is anticipated or do they replace the former design for 6B6-4?



BTW - Congrats on the EAA presentation.  I'm at about the same point you are, getting ready to install the forward side skins.



Tim



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_________________
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CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

PatrickW

Joined: 27 Oct 2006
Posts: 380
Location: Fort Worth, Texas

Posted: Tue Apr 29, 2008 11:50 am Post subject: Re: XL Upper engine mount 6B6-4

 	  Tim Juhl wrote: 	
		  I guess my question is whether they are only intended for use if installation of a BRS chute is anticipated or do they replace the former design for 6B6-4? 	


I specified that I wanted the "BRS Brackets" when I ordered my fuselage.  When I spoke with Nick & a BRS VP (at Oshkosh), Nick said that these brackets would be standard, and would also allow for builders to retrofit a BRS in the future.



So my understanding is "Yes, these brackets replace 6B6-4".  



Has anyone ordered a fuselage kit in the last 6 months and received the smaller 6B6-4 mounts...?



Thanks,



Patrick

XL/Corvair

MHerder

Joined: 11 Feb 2008
Posts: 143
Location: Fort Worth TX

Posted: Tue Apr 29, 2008 11:57 am Post subject: Re: XL Upper engine mount 6B6-4

That makes three of us about ready to put the front side skins on...  I'm glad to see others asking the same questions in the same areas I am.



PS I picked up the fuselage kit in Late Dec of 07 and I received the new style BRS mount.

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Afterfxllc(at)aol.com
Guest

Posted: Tue Apr 29, 2008 12:11 pm Post subject: XL Upper engine mount 6B6-4

I just picked up my kit last week and it had the new mount and I did not  say I wanted BRS so it must be standard now.

  

 Jeff

  	  Quote: 	
		  Has    anyone ordered a fuselage kit in the last 6 months and received the smaller    6B6-4 mounts...?

	


 

  



Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos.

  [quote][b]

Trainnut01(at)aol.com
Guest

Posted: Tue Apr 29, 2008 12:16 pm Post subject: XL Upper engine mount 6B6-4

I did not order a complete kit but I did order the 6B6-4 brackets. I  received the new triangular mounts.

 Carroll Jernigan

  

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Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos.

  [quote][b]

notsew_evets(at)frontiern
Guest

Posted: Tue Apr 29, 2008 12:24 pm Post subject: XL Upper engine mount 6B6-4

speaking of brs mounts on the firewall....  how hard is it to retro fit on a 

built 601 xl.....

---

Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Tue Apr 29, 2008 12:37 pm Post subject: Re: XL Upper engine mount 6B6-4

Looking at Scott's installation which doesn't use the Zenith BRS brackets it doesn't look like it would be to bad.



http://www.cooknwithgas.com/BRS.html 



 	  notsew_evets(at)frontiern wrote: 	
		  speaking of brs mounts on the firewall....  how hard is it to retro fit on a 

built 601 xl.....

---

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PatrickW

Joined: 27 Oct 2006
Posts: 380
Location: Fort Worth, Texas

Posted: Tue Apr 29, 2008 2:47 pm Post subject: Re: XL Upper engine mount 6B6-4

Has anyone received the REAR brackets in addition to the front ones...?



I only got the front ones.



Patrick

XL/Corvair

craig(at)craigandjean.com
Guest

Posted: Tue Apr 29, 2008 6:43 pm Post subject: XL Upper engine mount 6B6-4

I believe the rest of the parts would come from BRS. The bridle clamps are a

standard BRS part. The "L"s at the back look like what is shown in the older

601XL chute instructions from BRS and also like the parts Scott Laughlin

received directly from BRS and used in his installation.



-- Craig



--

craig(at)craigandjean.com
Guest

Posted: Tue Apr 29, 2008 6:55 pm Post subject: XL Upper engine mount 6B6-4

 	  Quote: 	
		   speaking of brs mounts on the firewall....  how hard is it to retro fit on

a built 601 xl.....
	




I essentially had to do this on my QBK. As received it had the second

generation motor mount brackets (with the integrated canopy pivot

attachment). But the main bolt holes were misaligned from the holes in the

actual firewall (off by an eighth of an inch). Zenith sent me the newer

triangular as replacements.



I had three problems in the change-over:



1. On the brackets the angle between the firewall and the side that aligns

with the longerons didn't match the actual angle between my firewall and

upper longeron. I had to trim the side of the bracket so it didn't overhang

the longeron.



2. I had to trim off the upper corner of the brackets to fit the inside

curve of the firewall's flange.



3. The brackets are longer and require an extra bolt through the longerons

to the rear.



-- Craig

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