Club Cobra Keith Craft Racing  

Go Back   Club Cobra > Club Forums > NW Cobra Club

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
MMG Superformance
Main Menu
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
Keith Craft Racing
December 2024
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        

Kirkham Motorsports

 

 

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 01-31-2010, 08:51 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2007
Location: Lake Havasu City, AZ
Cobra Make, Engine: Superformance
Posts: 316
Not Ranked     
Default Valve seals

Has anyone had any experience with Lubegard or similar rejuvenating valve seals?

Dale McBain
Reply With Quote
  #2 (permalink)  
Old 02-01-2010, 04:19 PM
northshoreboyz's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2010
Location: Port Orchard, wa
Cobra Make, Engine: classic roadsters/60 over 429 scj
Posts: 5
Not Ranked     
Default

I've used lots of different lubegaurd products but mostly in working high mileage applications.If your valve seals are hard,worn or torn a oil additive wont help you.Valve seals are very easy to replace though and will without a dought fix the problem.

good luck!
Reply With Quote
  #3 (permalink)  
Old 02-01-2010, 05:47 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2007
Location: Lake Havasu City, AZ
Cobra Make, Engine: Superformance
Posts: 316
Not Ranked     
Default Valve seals

Can you recommend a valve spring compressor the will work with the heads on the engine?

Dale
Reply With Quote
  #4 (permalink)  
Old 02-01-2010, 06:10 PM
northshoreboyz's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2010
Location: Port Orchard, wa
Cobra Make, Engine: classic roadsters/60 over 429 scj
Posts: 5
Not Ranked     
Default

Maybe I missed it somewhere, What kind of engine are we talking about? The easiest cheapest one that will work on most anything domestic is one that has 2 forks and a screw knob on top.You just put the two forks into the spring as low as possible and screw down the spring compressor,Remove the keeper and unscrew.Any part store will have these and they dont cost much.
Reply With Quote
  #5 (permalink)  
Old 02-01-2010, 06:18 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2007
Location: Lake Havasu City, AZ
Cobra Make, Engine: Superformance
Posts: 316
Not Ranked     
Default

It is a 351W with single springs and flat inner coil damper spring.
Reply With Quote
  #6 (permalink)  
Old 02-01-2010, 06:59 PM
Wbulk's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2009
Location: American Fork, Ut
Cobra Make, Engine: 66 Cobra
Posts: 930
Not Ranked     
Default

I use the KD 2078. Put the piston at TDC on the compression stroke for the set of springs you are working on. Use an air adapter for the spark plug hole to put air in the cylinder, to keep the valve from dropping into the cylinder. Make sure it's it gear with the wheels blocked to reduce the chance of the air turing over the engine. If you just remove the plug on the cylinder you are working on that reduces the chances of the air turing over the engine. Yes, take it out and in gear to rotate the engine to work on the next cylinder. Compress the spring, remove the keepers, remove the retainer and spring and replace the seal. Don't accidently push on the valve stem. You could cause the cylinder to lose air and the valve to drop. Move on to the next one.

That's the way I have always done it.

Wayne
Reply With Quote
  #7 (permalink)  
Old 02-02-2010, 09:16 AM
northshoreboyz's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2010
Location: Port Orchard, wa
Cobra Make, Engine: classic roadsters/60 over 429 scj
Posts: 5
Not Ranked     
Default

One last step that I always do is after the seal is replaced and the spring is put back on I use a rubber or plastic hammer and gently hit the top of the valves a few times to seat the keepers into the valves.
Reply With Quote
  #8 (permalink)  
Old 02-02-2010, 06:38 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2002
Location: Ruston, overlooking scenic ASARCO, wa
Cobra Make, Engine: 64 smallblock Fairlane
Posts: 116
Send a message via AIM to W2zero
Not Ranked     
Default

Back in the day, and still if no compressor is available, stuffed a yard of sash cord down the spark plug hole then rotate up until it was nice and tight against the valves, then pop the keepers with a hammer and socket, replace the seals then use the lever action spring compressor to reassemble. Simple and quick.
__________________
60 clicks West of Chu Lai
Reply With Quote
  #9 (permalink)  
Old 02-03-2010, 06:26 AM
Silverback51's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jun 2007
Location: Covington, wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,027
Not Ranked     
Default

Hello Dale,

Here is one from NAPA. Pretty simple and cheap.


http://www.napaonline.com/Search/Det...094_0006393020
__________________
John Hall
Reply With Quote
  #10 (permalink)  
Old 02-03-2010, 07:34 PM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2007
Cobra Make, Engine:
Posts: 327
Not Ranked     
Default just wondering

Quote:
Originally Posted by Dale McBain View Post
Has anyone had any experience with Lubegard or similar rejuvenating valve seals?

Dale McBain
How did you know that you need to replace your seals, what was your engine doing, and did it work, thanks.
Reply With Quote
  #11 (permalink)  
Old 02-03-2010, 09:37 PM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2007
Location: Lake Havasu City, AZ
Cobra Make, Engine: Superformance
Posts: 316
Not Ranked     
Default

The rope trick of I have heard about from aircraft engine mechanics. Thanks for the advice, it is very much appreciated.
Bye for now!
Dale
Reply With Quote
  #12 (permalink)  
Old 02-03-2010, 10:51 PM
UrQ's Avatar
UrQ UrQ is offline
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Woodinville, WA
Cobra Make, Engine: FFR
Posts: 201
Not Ranked     
Default

Quote:
Originally Posted by Dale McBain View Post
Has anyone had any experience with Lubegard or similar rejuvenating valve seals?

Dale McBain
Nope, but if seals get brittle not much anything can do except replace them
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 04:53 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, 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