Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

warp propeller bolts

Matronics Email Lists Forum Index -> Kitfox-List

View previous topic :: View next topic

Author Message

icubob(at)gmail.com
Guest

Posted: Fri Apr 09, 2010 3:46 am Post subject: warp propeller bolts

hi all,

  warp suggests using lock nuts on their attachment of their hub to the engine.  has anyone run into a faa inspecter that wants to see a drilled bolt and a cotter key? maybe i should go that route from the start?

             bob noffs 

  [quote][b]

Pat Reilly

Joined: 06 Aug 2009
Posts: 345

Posted: Fri Apr 09, 2010 5:22 am Post subject: warp propeller bolts

Bob, I have a Warp Drive. No problem with the FAA inspection and Nyloc nuts. There was no comment made so I can't really say the nuts were noticed. The spinner was off for the inspection though. The AP I had do the condition inspection asked about them. I commented that's what the mfg specified.

   

 Pat Reilly

 Mod 3 582 Rebuild

 Rockford, IL

  

 



 

 On Fri, Apr 9, 2010 at 6:45 AM, bob noffs <icubob(at)gmail.com (icubob(at)gmail.com)> wrote:

  	  Quote: 	
		   hi all,

  warp suggests using lock nuts on their attachment of their hub to the engine.  has anyone run into a faa inspecter that wants to see a drilled bolt and a cotter key? maybe i should go that route from the start?

             bob noffs 

 	  Quote: 	
		  



arget="_blank">http://www.matronics.com/Navigator?Kitfox-List

ttp://forums.matronics.com

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



	
	


-- 

Pat Reilly

Mod 3 582 Rebuild

Rockford,IL

  [quote][b]

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Fri Apr 09, 2010 5:59 am Post subject: Re: warp propeller bolts

no problem with Nylocs. I think most of the warp folks use Nylocs.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

Vic Baker

Joined: 11 Jan 2006
Posts: 71
Location: Carson City, Nevada

Posted: Fri Apr 09, 2010 6:07 am Post subject: warp propeller bolts

Bob,  same as Pat here,  FAA inspector asked  about the torque check schedule only.

  

  

  

  

 Vic Baker

S7 912S Warp

Carson City, Nv

 [quote]   ---

_________________
Vic Baker
Series 7
Carson City, Nevada

kirkhull(at)kc.rr.com
Guest

Posted: Fri Apr 09, 2010 4:54 pm Post subject: warp propeller bolts

If the FAA questions it just tell him that is the  manufacturers recommendation.  But proper torque is very important on these as the parts are not drilled to a close tolerance so they will really bang around if they are not kept tight.  

         

  

From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Vic Baker

 Sent: Friday, April 09, 2010 8:53 AM

 To: kitfox-list(at)matronics.com

 Subject: Re: warp propeller bolts  

  

     

Bob,  same as Pat here,  FAA inspector asked about the torque check schedule only.  

    

   

    

   

    

   

    

   

    

Vic Baker

 S7 912S Warp

 Carson City, Nv  

  [quote]    

---

icubob(at)gmail.com
Guest

Posted: Fri Apr 09, 2010 5:07 pm Post subject: warp propeller bolts

thanks to all for the input. sounds like i dont need castellated nuts and cotter keys. one more question for the self locking nuts....how frequently should they be retorqued? how often should the nuts be replaced?

   bob noffs

 On Fri, Apr 9, 2010 at 7:53 PM, kirk hull <kirkhull(at)kc.rr.com (kirkhull(at)kc.rr.com)> wrote:

 [quote]   

If the FAA questions it just tell him that is the  manufacturers recommendation.  But proper torque is very important on these as the parts are not drilled to a close tolerance so they will really bang around if they are not kept tight.  

     

 

From: owner-kitfox-list-server(at)matronics.com (owner-kitfox-list-server(at)matronics.com) [mailto:owner-kitfox-list-server(at)matronics.com (owner-kitfox-list-server(at)matronics.com)] On Behalf Of Vic Baker

 Sent: Friday, April 09, 2010 8:53 AM  

To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)



  

 Subject: Re: warp propeller bolts



 



  

  

   

Bob,  same as Pat here,  FAA inspector asked about the torque check schedule only.

  

 

  

 

  

 

  

 

  

Vic Baker

S7 912S Warp

Carson City, Nv

 [quote]   

---

icubob(at)gmail.com
Guest

Posted: Fri Apr 09, 2010 5:07 pm Post subject: warp propeller bolts

yea, i know. i meant cotter pins.

  bob noffs

 On Fri, Apr 9, 2010 at 8:06 PM, bob noffs <icubob(at)gmail.com (icubob(at)gmail.com)> wrote:

 [quote] thanks to all for the input. sounds like i dont need castellated nuts and cotter keys. one more question for the self locking nuts....how frequently should they be retorqued? how often should the nuts be replaced?

   bob noffs

  

  On Fri, Apr 9, 2010 at 7:53 PM, kirk hull <kirkhull(at)kc.rr.com (kirkhull(at)kc.rr.com)> wrote:

 [quote]   

If the FAA questions it just tell him that is the  manufacturers recommendation.  But proper torque is very important on these as the parts are not drilled to a close tolerance so they will really bang around if they are not kept tight.  

     

 

From: owner-kitfox-list-server(at)matronics.com (owner-kitfox-list-server(at)matronics.com) [mailto:owner-kitfox-list-server(at)matronics.com (owner-kitfox-list-server(at)matronics.com)] On Behalf Of Vic Baker

 Sent: Friday, April 09, 2010 8:53 AM  

To: kitfox-list(at)matronics.com (kitfox-list(at)matronics.com)



  

 Subject: Re: Kitfox-List: warp propeller bolts



 

 



  

  

   

Bob,  same as Pat here,  FAA inspector asked about the torque check schedule only.

  

 

  

 

  

 

  

 

  

Vic Baker

S7 912S Warp

Carson City, Nv

 [quote]   

---

Dick Maddux

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

Posted: Sat Apr 10, 2010 5:48 am Post subject: warp propeller bolts

The prop bushings on my Warp are threaded so I am able to torque the prop and safety wire the drilled heads of the bolts. (ala: a conventional aircraft) There must have been a change in the Rotax prop flange somewhere along the line because every hole(except the larger outer) is threaded. I have a mid 90's engine.

  When I tried the Kiev prop I had to remove the prop bushings as the Kiev hub fastened to the inner ring of holes on the prop flange.  This inner ring of holes on the prop flange was also threaded and I was able to torque the bolts and used lock nuts on the back to give more thread area. I drilled the heads of the bolts and used safety wire there.(probably overkill) I don't really like that method of fastening the hub to the inner ring of holes but that's  the only way to do it..The Warp system seems to be more stable with the bushings, wider hub support,etc 

  I ended up going back to the Warp as I had the wrong Kiev prop (was for 100hp) and it didn't perform as well at cruise. I have ordered the proper shorter blade Kiev and will give that one a shot cause I sure like it. It is one smooth prop. (like a turbine)

                                                    Dick Maddux

                                                    Fox 4-1200

                                                    912 UL

                                                    Milton,Fl

  [quote][b]

Float Flyr

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

Posted: Sat Apr 10, 2010 7:31 am Post subject: warp propeller bolts

Their outlook is probably the same as Ivo.  That is amateur mechanics are terrified to cut a piece of lock wire to check a torque for regular scheduled maintenance.  I think they are wrong but do what I’m told by the Mfgr.  

   

Noel  

     

From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of bob noffs

 Sent: April 9, 2010 9:16 AM

 To: kitfox-list(at)matronics.com

 Subject: warp propeller bolts  

  

     

hi all,  

    

 warp suggests using lock nuts on their attachment of their hub to the engine.  has anyone run into a faa inspecter that wants to see a drilled bolt and a cotter key? maybe i should go that route from the start?  

    

           bob noffs   

   	  Quote: 	
		    http://www.matronics.com/Navigator?Kitfox-List 	
0 	  Quote: 	
		   	
1 	  Quote: 	
		   	
2 	  Quote: 	
		   	
3 	  Quote: 	
		   	
4 	  Quote: 	
		   	
5 	  Quote: 	
		   	
6 	  Quote: 	
		   	
7 	  Quote: 	
		   	
8 	  Quote: 	
		   	
9

        [quote][b]

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Float Flyr

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

Posted: Sat Apr 10, 2010 7:32 am Post subject: warp propeller bolts

There are several instances where the manufacturers maintenance manuals will specify things that fly in the face of conventional procedures but in all those instances the manual is the law and must be followed.  

   

Noel  

     

From: owner-kitfox-list-server(at)matronics.com [mailto:owner-kitfox-list-server(at)matronics.com] On Behalf Of Patrick Reilly

 Sent: April 9, 2010 10:47 AM

 To: kitfox-list(at)matronics.com

 Subject: Re: warp propeller bolts  

  

     

Bob, I have a Warp Drive. No problem with the FAA inspection and Nyloc nuts. There was no comment made so I can't really say the nuts were noticed. The spinner was off for the inspection though. The AP I had do the condition inspection asked about them. I commented that's what the mfg specified.  

    

   

    

Pat Reilly  

    

Mod 3 582 Rebuild  

    

Rockford, IL  

    

   

    



 

    

    

On Fri, Apr 9, 2010 at 6:45 AM, bob noffs <icubob(at)gmail.com (icubob(at)gmail.com)> wrote:    

hi all,  

    

 warp suggests using lock nuts on their attachment of their hub to the engine.  has anyone run into a faa inspecter that wants to see a drilled bolt and a cotter key? maybe i should go that route from the start?  

    

           bob noffs   

   	  Quote: 	
		    arget="_blank">http://www.matronics.com/Navigator?Kitfox-Listttp://forums.matronics.com_blank">http://www.matronics.com/contribution 	


  



  

 -- 

 Pat Reilly

 Mod 3 582 Rebuild

 Rockford,IL   	  Quote: 	
		     	
0 	  Quote: 	
		   	
1 	  Quote: 	
		   	
2 	  Quote: 	
		   	
3 	  Quote: 	
		   	
4 	  Quote: 	
		   	
5 	  Quote: 	
		   	
6 	  Quote: 	
		   	
7 	  Quote: 	
		   	
8 	  Quote: 	
		   	
9 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
0 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
1 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
2 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
3 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
4 	  Quote: 	
		  arget="_blank">http://www.matronics.com/Navigator?Kitfox-List 	
5

        [quote][b]

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Sat Apr 10, 2010 2:25 pm Post subject: Re: warp propeller bolts

Hi BOB,



The long 8.8 bolts on the hub with the Nylocs are torqued to 174 in/lbs for a Warp. Other prop Mfg's have different specs. You can check them every annual. Replacing them? Well some say if you take it off replace it. Some say if you take it off 2-3 times and others say if you can unscrew them by hand. Kind of depends who you want to listen to. For me it depends on what a nut is holding in place and how critical it is. Having done this for many years I would say if you take it off a couple of times then toss it and put a new one on. Others here may tell you use it once then toss it. Once on though and never have removed it, then there is no reason to change it, unless something odd happens.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

Display posts from previous:

	Matronics Email Lists Forum Index -> Kitfox-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum