ConcoursMustang Forums

Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: 67gt390fb on March 27, 2010, 11:20:03 PM

Title: Location of thermactor anti-backfire valve?
Post by: 67gt390fb on March 27, 2010, 11:20:03 PM

I have an S code 1967 mustang .  I am trying to replace the missing thermactor emission system.  I have collected all of the necessary parts, but have found two different possible locations for the anti-backfire valve.  one mounts on a bracket attached to the back of the passenger side head, and the the other mounts on the intake manifold behind the carb.   Which one of these would be correct?

Title: Re: Location of thermactor anti-backfire valve?
Post by: J_Speegle on March 28, 2010, 03:33:25 PM

It should be a two port valve mounted to a L shaped bracket  (sorry don't have a number right this minute) attached to the rear of the intake.

There are a couple of different configurations depending on when your car was built (like so many 67 details and running changes) so I hope you got all the right pieces for your specific car

Title: Re: Location of thermactor anti-backfire valve?
Post by: 67gt390fb on March 28, 2010, 08:53:21 PM

thanks Jeff.  If I do have two different intake mounting brackets, I will check back.  Otherwise I will use the one I have .  Alan

Title: Re: Location of thermactor anti-backfire valve?
Post by: J_Speegle on March 29, 2010, 10:24:03 PM

Original application appears to have been C6OE-9B290-C

Here is a picture to assist

(http://i44.photobucket.com/albums/f49/firetrainer/67%20Mustang/7F91S540060Thermctrrearclose.jpg)