• Post to the EFV-8 Forum
  • Post Classified Ads
  • Shop the Online Store
User Login

Not Registered Yet? Click Here to Sign Up!

(Forgot your Password?)
Remember me on this computer

Not registered yet?

Back to Home Page Show Forum Rules

Early Ford V-8 Club Forum

FORUM RULES: Users agree to these Rules when using Forum.

The site administrator reserves the right to change the terms and conditions of the user agreement without prior notice to the user. It is the responsibility of the user to regularly review the terms of this agreement.

The user agrees to the following terms:

  1. All information that you provide to us for your membership is correct.
  2. You will not use your membership to spam, harrass, or exploit other members in any way.
  3. Vulgar, Abusive, Racist and Sexist Language will not be tolerated.
  4. Commercial-type sales postings will not be allowed.
  5. No mass posting or flooding of the boards is allowed.
  6. No Advertising of parts or cars; no Ebay or business/commercial ads (please use the "Classified" for ads Wanted or For Sale).
  7. VIEWING MULTIPLE TOPICS ON SCREEN: You can choose to see more than 10 Topics at a time ... Log In and choose "Preferences" from the top bar on the Forum page. Scroll down and Change the "Default Topics Returned" parameter to 25 or 50, and save the changes. Since this setting is stored in your browser 'cookies' (if enabled), it seems to use that stored value even if you are not logged in. So, if you use a PC that you haven't logged into the forum from, the setting still seem to remain at the default.
  8. EXTERNAL PHOTO LINKS ON FORUM: You can still use external photo links in your posts on the new forum. They follow the rules of any link in that they have to have the URL link qualified down to the full image file name (example: .jpg). The links will open in a new browser window, the same as an uploaded image attached to a post. Since an image attachment to any post does not display inline with the post, the results are the same. You can use multiple external links within a post. This link is from photos on a site from Don Clink's 'Deuce@75' albums:


    Using links from photo sites such as Photobucket can help in "size" issue with uploaded attachment files. For best viewing in web browsers, photos should be around the 800x600 pixel range, and probably not more than 1024x768. Most cameras today store HUGE jpg image files, as the default settings are in the 7, 8, 10, and 12Mb image sizes. The image files that are then attached are very large, and the browser can't display the full image size without using the scroll bars. Use the re-sizing functions of your photo editing software to reduce the image to 800x600, which reduces the file sixe and the image load time in the browser. Don uses Google's free Picassa3 software, which is an excellent photo management product. All of the photo albums of the Deuce, Grand National, and Auburn that are links on the NORG site were built using Picassa's web creation functions. And it's free? (THANKS to Don Clink for the info!)
  9. HOW DO I SHOW MY EMAIL ADDRESS ALONG WITH MY USERNAME? You can LogIn on the Forum, and select PREFERENCES. On this page Members can add optional information such as their City,State, Country; Occupation; Hobbies: list a Homepage; list AOL Instant Messanger Handle; Signature; "Make Email Address viewable to others;" and even change the number of Default Topics shown on a page. WHEN others click on your profile, they will see this information.

EFV-8 Club Forum / General Mercury Discussion / power valve

   Reply to this DiscussionReply to Discussion | Start new discussionNew Discussion << previous || next >> 
Posted By Discussion Topic: power valve

Printer-friendly Version  send this discussion to a friend  new posts last

03-10-2023 @ 3:15 AM
Posts: 24
Joined: Sep 2012
what size power valve to use on a holley 94 on a stock 59ab?thanks

03-11-2023 @ 8:25 AM
Posts: 58
Joined: Jul 2012
The carb may need to be modified to use the modern type power valve. The originals aren't available as far as I know. Charlie Schwendler can modify the housing to fit the late types so they don't leak. This is a link with his information.

03-11-2023 @ 9:35 AM
Posts: 7119
Joined: Oct 2009
The 8.5 valve was the standard valve when your carburetor was built. It will open when engine vacuum drops to 8.5 - 9 inches of vacuum allowing more fuel to flow..

In the past, all kits had a modern type power valve with a radius cast into the section where the sealing surface meets the vertical surface. This made getting a good seal impossible. Kits from Daytona Parts have a power valve that will seal correctly. Charley Schwendler ( cas5845@yahoo.com ) sells this kit with a metal needle valve and seat that works much better than the valve and seat that Daytona or other kits have.

I recommend that you send the carburetor to Charley, because he machines the sealing surfaces to make sure there are no vacuum leaks and the the power valve operates correctly. You will get back a carburetor that you can install and run as delivered.

If you are determined to rebuild the carburetor or rep0lace the power valve yourself, please test it for fuel leaks before you install it on the car. The way that I do it, is to fill the bowl with fresh fuel to a level that you can easily determine any changes. set the cover on the bowl and then let the carburetor sit over night. If the fuel level drops, the power valve is not sealed. A correctly sealed power valve will hold the fuel level for at least a week.


<< previous || next >> 

NOTE: YOU MUST BE A REGISTERED USER AND BE LOGGED IN TO POST (and reply to) messages in this forum. If you are a first time user, please click the CREATE A NEW ACCOUNT in the masthead above to register and Log In. After that, all you do is LOG IN to enjoy using this site.

DISCLAIMER: The V-8 Club does no independent testing of any of the opinions, thoughts or suggestions presented in the website on the Forum, in the Tech Tips section, or any section. A reader should consider the website to be a forum wherein differing solutions to a particular set of circumstances may be discussed. Ultimately, the selection of an item for an individual's vehicle must be based upon the independent study of the vehicle owner in consultation with people in the hobby and restoration experts.

EFV-8 Club Forum Home | Back to Home Page | Contact the Webmaster

Copyright © 2009 - EFV-8.org
Powered by < CF FORUM > v.2.1