Welcome to Club Cobra.

You are currently viewing the world's largest resource for Shelby related information as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!


Go Back   Club Cobra > Manufacturers, Engine Builders, tools, and parts. > Kirkham Motorsports

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

MMG Superformance
Nevada Classics
Keith Craft Racing
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
Keith Craft Racing
MMG Superformance
MMG Superformance
July 2022
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            
  #1 (permalink)  
Old 06-19-2008, 06:11 PM
Murphy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2006
Location: Tampa, fl
Cobra Make, Engine: Kirkham #473 427 every option, Keithcraft aluminum FE 482 ci. Mass Flo FI. Tremec TKO 600.
Posts: 260
Not Ranked     
Default Near Disaster

Just took a spin and felt the car handling strange. Rear left wheel almost came off. I have the newer pin retainer on my hub, spinner was about three threads from off, and yes it passed the retainer???
Reply With Quote
Sponsored Links
Sponsored Links
  #2 (permalink)  
Old 06-19-2008, 06:46 PM
ZOERA-SC7XX's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Mar 2005
Location: Meriden, CT
Cobra Make, Engine: ERA 427 SC s/n 718, 428 FE
Posts: 1,721
Not Ranked     
Default

You gotta safety-wire those things. Right hand thread on the drivers side, left hand thread on the passenger side.
Reply With Quote
  #3 (permalink)  
Old 06-19-2008, 08:14 PM
David Kirkham's Avatar
CC Member
Visit my Photo Gallery
Original Shelby Owner


 
Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,989
Not Ranked     
Default

Murphy,

I wonder if the button got stuck somehow for a moment in the down position from dirt, grime??? I can't see how the knock off could go past that button. The design is straight from F1 and it is now the only type locking device they allow.

Maybe a burr? Weak spring?

I certainly want to get to the bottom of this one...fast!

David
__________________
David Kirkham, President Kirkham Motorsports
Manufacturer Aluminum Body Kit Cars and supplier to Shelby* for their CSX4000, CSX7000, and CSX8000 289 and 427 Cobra
*Kirkham Motorsports is not affiliated with Ford or Carroll Shelby or any of their trademarks.
"Fear is the thief of dreams."
Reply With Quote
  #4 (permalink)  
Old 06-20-2008, 05:43 AM
Murphy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2006
Location: Tampa, fl
Cobra Make, Engine: Kirkham #473 427 every option, Keithcraft aluminum FE 482 ci. Mass Flo FI. Tremec TKO 600.
Posts: 260
Not Ranked     
Default Thanks for the reply David

I took the wheel off and inspected all parts. Nothing damaged? I was on the interstate and the car was all over the place.

The button moves freely. The spinner went past the button for sure. I was but two miles from my house when I first pulled over to look, so I tightened the spinner by hand enough to get it past the button and had to pull over again to retighten by hand as it had gone past the button again. I wonder if I used too much anti sieze?
Reply With Quote
  #5 (permalink)  
Old 06-22-2008, 08:48 AM
CC Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: Exeter, CA
Cobra Make, Engine: KMP 498
Posts: 495
Not Ranked     
Default

I just put two thousand miles and one track day on may car with the buttons. I would bet it wasn't tight and on when you started. I recomend not mind ####ing it to death- put it on right and get back in the race. Good luck.
__________________
Sanded Aluminum Finish? Because I Can!
Reply With Quote
  #6 (permalink)  
Old 06-22-2008, 10:44 AM
JBo JBo is offline
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2006
Cobra Make, Engine: Ex CSX3327, & AK7113 AutoKraft AC MK IV
Posts: 458
Not Ranked     
Default failing "buttons"

safety wire as a failsafe?
Reply With Quote
  #7 (permalink)  
Old 06-22-2008, 10:44 AM
ENTDOC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2002
Location: Greenville,sc, SC
Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40
Posts: 1,464
Not Ranked     
Default

but isn't that the whole idea of the buttons, to keep the wheel from coming off if it was not tight? If just tightening the spinner is the cure why have a backup safety system?
__________________
SPF Daytona coupe 055, Roush 427R
Reply With Quote
  #8 (permalink)  
Old 06-22-2008, 11:35 AM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2008
Location: Jacksonville, FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
Posts: 1,009
Not Ranked     
Default

I guess my question would be does the button move too freely? (compare the tension to one of the others)

Also what does the leading edge of the spinner look like? (too beveled)

If you can post a pic of that lock it would help...

Here's one of mine to compare:

Reply With Quote
  #9 (permalink)  
Old 06-22-2008, 02:12 PM
rsb427's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2007
Location: roseburg, or
Cobra Make, Engine: midstates with dual 4 390 aluminium heads msd etc.
Posts: 23
Not Ranked     
Default

beat it good with lead hammer dont be afraid and safety wire 2000 miles on mine no problem!
Reply With Quote
  #10 (permalink)  
Old 06-22-2008, 02:30 PM
CHANMADD's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2006
Location: San Marcos california, CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,560
Not Ranked     
Default

Just looking at the design of that "button" it kind of looks foolproof to me.How can it possibly go past without the button being pushed in by something ,or it was'nt on right in the first place?
Reply With Quote
  #11 (permalink)  
Old 06-23-2008, 09:09 AM
Murphy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2006
Location: Tampa, fl
Cobra Make, Engine: Kirkham #473 427 every option, Keithcraft aluminum FE 482 ci. Mass Flo FI. Tremec TKO 600.
Posts: 260
Not Ranked     
Default Don't know how?

I took off all of my wheels and inspected them. All of the spring loaded pins function the same and appear undamaged.

The only odd thing was the spinner on the wheel that came lose had a spot about 1/2" long where it was clear that it was rubbing on the pin. There was a slight burr in the thread of the spinner where it appeared the pin crossed into the threads. How the pin compressed and crossed into the spinner threads is a mystery. It did occur while driving on the interstate.

You get plenty of warning as the car was all over the place and I knew there was a problem.

Ronbo, my wheel looks just like yours except I don't have the Kirkham spinner.
Reply With Quote
  #12 (permalink)  
Old 06-23-2008, 09:24 AM
David Kirkham's Avatar
CC Member
Visit my Photo Gallery
Original Shelby Owner


 
Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,989
Not Ranked     
Default

Murphy,

If you think the knock off is any sort of a problem, I will send you out a new set of our billet knock offs today (burr, too big of bevel, whatever). Just let me know. Let's get to the bottom of this.

David
__________________
David Kirkham, President Kirkham Motorsports
Manufacturer Aluminum Body Kit Cars and supplier to Shelby* for their CSX4000, CSX7000, and CSX8000 289 and 427 Cobra
*Kirkham Motorsports is not affiliated with Ford or Carroll Shelby or any of their trademarks.
"Fear is the thief of dreams."
Reply With Quote
  #13 (permalink)  
Old 06-23-2008, 10:31 AM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2006
Location: Houston, TX
Cobra Make, Engine: Superformance SP02228, ROUSH 402R w/custom DiVinci Performance Carb.
Posts: 440
Not Ranked     
Thumbs up Nice Service

David, Nice service!!! I am lucky to have the same attention to service here in Houston with my Superformance shop. Your 289 FIA car is one of my wish list cars.
Reply With Quote
  #14 (permalink)  
Old 06-23-2008, 04:49 PM
Murphy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2006
Location: Tampa, fl
Cobra Make, Engine: Kirkham #473 427 every option, Keithcraft aluminum FE 482 ci. Mass Flo FI. Tremec TKO 600.
Posts: 260
Not Ranked     
Default

[/IMG]

OK, here is a pic. Looks like possibly the casting that is the spinner has enough of a raised radius to force the push pin in as it rotates? It appears the pin jumped the threads at the highest section of the spinner??? OK NASA guys tell me what really happened..

Last edited by Murphy; 06-23-2008 at 04:53 PM..
Reply With Quote
  #15 (permalink)  
Old 06-23-2008, 04:57 PM
David Kirkham's Avatar
CC Member
Visit my Photo Gallery
Original Shelby Owner


 
Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,989
Not Ranked     
Default

I don't know what happened, but I have a new set of knock offs here if you think that will solve your problem!

David
__________________
David Kirkham, President Kirkham Motorsports
Manufacturer Aluminum Body Kit Cars and supplier to Shelby* for their CSX4000, CSX7000, and CSX8000 289 and 427 Cobra
*Kirkham Motorsports is not affiliated with Ford or Carroll Shelby or any of their trademarks.
"Fear is the thief of dreams."
Reply With Quote
  #16 (permalink)  
Old 06-23-2008, 05:35 PM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2004
Location: toronto, ont
Cobra Make, Engine: 408w 500 h.p. 550 ft.lbs
Posts: 562
Not Ranked     
Default

Murphy,
this may sound stupid--- but why don't you take your hammer & try knocking the spinner off ? ( opposite rotation to on )
Maybe the extra pressure will reproduce what is happening when you are driving & force the pin in. Wiggling the wheel around at the same time may help also.
Can't hurt.
The spinner probably wasn't tight to start with, initiating the problem, but it sure would be nice to discover why the safety did not hold.
Reply With Quote
  #17 (permalink)  
Old 06-23-2008, 06:42 PM
CC Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: Exeter, CA
Cobra Make, Engine: KMP 498
Posts: 495
Not Ranked     
Default

i AM SURE OTHRES HAVE MORE EXPERIENCE WITH KNOCK-OFF:
i HAVE ONLY HAD THREE CARS WITH THEM VARING HP CARS AND I AM A "DRIVER":
If the nuts are tight and the threads are good they do not back off so the little lock thing is not the issue, that simple. If the left and right hand threads are not on the appropriate side- they will come off eventually- saftey wire will not keep a nut that wants to come off from comming off, again that simple. If the nut was backing off against the littel spring thing- you would see damage to the spring thing for sure.
I still think they were not on right in the first place but you should check:
a. Make sure they are on right sides, duh!
b. Make sure threads are not gone- put a stright edge on the hub threads the tops should all be the samjust like a 18-Wheeler axel check. ( my autokraft had this issue-try fixing that ten years ago)
c. Make sure the wheel back flange fits square against the hub.
d. Try to over tighten the spinner- If it were split it will open up- again just like an 18-Wheeler axel nut or any other for that matter.

Good luck- don't let it scare you even if the wheel comes off the most you would end up with is fame on "Youtube" and some expensive bodywork.

If all is right I would swap front to back and go for a spin.
__________________
Sanded Aluminum Finish? Because I Can!
Reply With Quote
  #18 (permalink)  
Old 06-23-2008, 07:28 PM
Banned
Visit my Photo Gallery

 
Join Date: Mar 2003
Location: so.cal,
Posts: 516
Not Ranked     
Question

****************

Last edited by csx700?; 12-18-2009 at 12:27 AM..
Reply With Quote
  #19 (permalink)  
Old 06-24-2008, 06:10 AM
Murphy's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2006
Location: Tampa, fl
Cobra Make, Engine: Kirkham #473 427 every option, Keithcraft aluminum FE 482 ci. Mass Flo FI. Tremec TKO 600.
Posts: 260
Not Ranked     
Default Thanks for your thoughts

I agree that it must have been loose to begin with as I only traveled 10-12 miles. The last time the wheels were off was 500 miles ago. I put them on myself and I am positive they were tight and fully engaged. To answer other concerns, yes the hubs are on the correct side of the car and there is no damage or misfit of the wheels or hubs? I am 100% confident that there is no assembly issue or damaged parts as I bought the car as a roller. I still fall back to the thought the geometry of the spinner as it backs off will force the safety pin inward.

Concern remains that the spinner passed the safety pin.

Good news is my wife now refuses to get in the car or allow the kids to go with me....She was with me when the problem occured.

I will call you David.
Reply With Quote
  #20 (permalink)  
Old 06-24-2008, 10:15 PM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2008
Location: Jacksonville, FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
Posts: 1,009
Not Ranked     
Default

From your photo I'm guessing I'm seeing the thread ridge which doesn't seem high enough to push the pin down.

But another thought comes to mind.. Does the pin have a nice sharp 90deg back to top angle? (check to see if it's rounded over)

The grooves mentioned seem like a good idea, even better would be a knife edge at the top on the button that would "cut in" to the spinner face on contact and thus lock the button in place. Or possibly a groove in the back of the button with a raised lip on the spinner face.

Or of course say the heck with it and get the safety wire out...

Definately take up David on the billet spinners, they're really nice pieces.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 06:38 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy