Club Cobra Keith Craft Motorsports  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > 429/460 Engine Talk

Keith Craft Racing
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
November 2025
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            

Kirkham Motorsports

Like Tree1Likes

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 07-01-2006, 07:39 PM
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
Not Ranked     
Default

I'm a believer in a PC valve, without I worry about to much internal pressure.

A quart of oil in a thousand miles could be considered 'normal'.
Reply With Quote
  #2 (permalink)  
Old 07-01-2006, 09:04 PM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2003
Location: Dacula, GA
Cobra Make, Engine: Porsche 928 S4
Posts: 408
Not Ranked     
Default

BinB, it's not unheard of for breathers to fly off during dyno runs and it may not be a problem, there will be some blowby even if the rings seal well. If you had detonation problems it's possible to have damaged a piston. Why not do a compression check to find odd cylinders? You can have a detonation damaged piston with chunks broken off around the ring land and not even know it, you would want to catch it before the ring breaks up.
Reply With Quote
  #3 (permalink)  
Old 07-02-2006, 01:11 AM
FUNFER2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2002
Location: Eagle, Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,310
Not Ranked     
Default

Just do a simple "leak down test". You'll be able to see if the rings are set and if there's any blow by. Then do a compression test. Also, read your plugs.
What was the fuel curve results on the dyno ?
__________________
Regards,
Kevin
Reply With Quote
  #4 (permalink)  
Old 07-02-2006, 09:48 AM
Back in Black's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Olympia/Lacey, WA
Cobra Make, Engine: West Coast. 514 / 6 speed Richmond overdrive
Posts: 1,981
Not Ranked     
Default

Quote:
Originally Posted by FUNFER2
Just do a simple "leak down test". You'll be able to see if the rings are set and if there's any blow by. Then do a compression test. Also, read your plugs.
What was the fuel curve results on the dyno ?

The fuel curve results I do not yet know, but I'll ask when they reopen on Wednesday
__________________
James Madison, father of the Constitution, said, "If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy." He also said, "No nation could preserve its freedom in the midst of continual warfare..."
~~~~~~~~~~~~~~~~~~~~~~~~
http://www.standdown.net/index.htm
Reply With Quote
  #5 (permalink)  
Old 07-02-2006, 11:29 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2002
Cobra Make, Engine: KMP329 w/KC489 Shelby
Posts: 392
Not Ranked     
Default

Blue smoke (oil leak) out of the sidepipes could be the result of a intake gasket leak. This is especially true if you were using the Fel-Pro gaskets. Speculation of my part is people using the printoseal gasket still put RTV on them and it is causing the gasket to get too compressed. The gaskets get mangled and you get an intake leak. I switched to some Victor Reinz Nitro Seal gaskets and it cleared up my oil in the sidepipe problem.
Reply With Quote
  #6 (permalink)  
Old 07-02-2006, 11:34 AM
Back in Black's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Olympia/Lacey, WA
Cobra Make, Engine: West Coast. 514 / 6 speed Richmond overdrive
Posts: 1,981
Not Ranked     
Default

So you're thinking the rebuilder used the end gaskets and put RTV on them, or I otherwise have an intake gasket leak due to something else? That would be way better than the alternative scenarios..
__________________
James Madison, father of the Constitution, said, "If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy." He also said, "No nation could preserve its freedom in the midst of continual warfare..."
~~~~~~~~~~~~~~~~~~~~~~~~
http://www.standdown.net/index.htm
Reply With Quote
  #7 (permalink)  
Old 07-03-2006, 10:22 PM
Back in Black's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Olympia/Lacey, WA
Cobra Make, Engine: West Coast. 514 / 6 speed Richmond overdrive
Posts: 1,981
Not Ranked     
Default

Bump!
__________________
James Madison, father of the Constitution, said, "If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy." He also said, "No nation could preserve its freedom in the midst of continual warfare..."
~~~~~~~~~~~~~~~~~~~~~~~~
http://www.standdown.net/index.htm
Reply With Quote
Reply


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 03:32 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, 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
Links monetized by VigLink