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Corvair firewall- bolt length

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naumuk(at)alltel.net
Guest

Posted: Sat Apr 14, 2007 8:24 am Post subject: Corvair firewall- bolt length

Jeff and all-

     Wow, this has been like a  newspaper treasure hunt!

     Are HD/HDS and XL plans mount  locations the same? Yes. According to the archives, the XL O-235 layout  will also work for Rotax and Jabiru mounts on all 601s. But what  about Corvair mounts?

     According to Phil Maxson, he  drilled per plans for the O-235 and everything worked for his Corvair  installation but for longer bolts.

     Now, all I need is to know is  the bolt specs so I can give ACS some more money and I'm in business.  

     I'm sure you can imagine how  hard it is to hold back progress until you make sure you won't have to  rework the whole front end of your project down the line. Education via the  school of hard knocks.

     Anyone out there have the  Corvair mount bolt specs?

 Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

 [quote]   ---

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Jaybannist(at)cs.com
Guest

Posted: Sat Apr 14, 2007 8:52 am Post subject: Corvair firewall- bolt length

Bill,



According to WW, you will need 4 AN6-23A bolts, 4 AN363-624 nuts and 4 AN960-616 washers.   This information is in the WW 601 installation manual.



Jay in Dallas

do not archive

"Bill Naumuk" <naumuk(at)alltel.net> wrote:



[quote]Jeff and all-

    Wow, this has been like a newspaper treasure hunt!

    Are HD/HDS and XL plans mount locations the same? Yes. According to the archives, the XL O-235 layout will also work for Rotax and Jabiru mounts on all 601s. But what about Corvair mounts?

    According to Phil Maxson, he drilled per plans for the O-235 and everything worked for his Corvair installation but for longer bolts.

    Now, all I need is to know is the bolt specs so I can give ACS some more money and I'm in business.

    I'm sure you can imagine how hard it is to hold back progress until you make sure you won't have to rework the whole front end of your project down the line. Education via the school of hard knocks.

    Anyone out there have the Corvair mount bolt specs?

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

  ---

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craig(at)craigandjean.com
Guest

Posted: Sat Apr 14, 2007 9:15 am Post subject: Corvair firewall- bolt length

The spool thickness on the Wynne motor mounts are the same  as the spools on the motor mounts shown on the Zenith plans for the Lycoming  O-235 mount on 6-YE-2. I know because I measure the spools on my WW mount. From  base to top the length is 38 mm. Repeating the quote from an e-mail from Nick he  recommended:

  

 "In the  latest edition, we no longer weld the bolt to the engine mount fitting. For the  lower engine mount fittings, installing the bolt after the fitting is installed  to the fuselage allows for better alignment. 

For a 38mm long bushing, allow approximately 3mm to go  through the fitting, the doubler and firewall = 41mm A better bolt to use is an  AN6-22A (grip length = 1-11/16")" 

  

-- Craig

[quote] [b]

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naumuk(at)alltel.net
Guest

Posted: Sat Apr 14, 2007 10:42 am Post subject: Corvair firewall- bolt length

Jay-

    The manual is out? I had an e-mail with WW 4/10 and it wasn't ready for 

publication yet.

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

---

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Jaybannist(at)cs.com
Guest

Posted: Sat Apr 14, 2007 11:16 am Post subject: Corvair firewall- bolt length

Bill,



The manual is not ready for publication, but it is "out."  I have gotten two iterations from WW.  The first one was about 10% complete and the latest one is about 50% complete.  No telling when he will finish it.  He would never admit it, but he simply has more on his plate than he can possibly handle in a reasonable amount of time.



Jay in Dallas

do not archive

"Bill Naumuk" <naumuk(at)alltel.net> wrote:



 	  Quote: 	
		  



Jay-

    The manual is out? I had an e-mail with WW 4/10 and it wasn't ready for 

publication yet.

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

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naumuk(at)alltel.net
Guest

Posted: Sat Apr 14, 2007 1:07 pm Post subject: Corvair firewall- bolt length

Jay-

    Since I'm through the firewall questions, I've got enough other stuff to 

keep me busy until he finishes the manual.

    Thanks.

                                do not archive

Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

---

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