• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

Wedge TR8 Header Install

Share this page

tr8todd said:
The smaller sealing area allows for thermal expansion, and concentrates the clamping force. Remove the raised area only if you like replacing gaskets often.
Click to expand...

Mickey Richaud said:
This way there's less metal to have to mate to the head. Installed them with no issues.
Click to expand...
 
tr8todd said:
That raised lip is the sealing area of the header against the head. It is suppose to be there. The thinking is greater pressure per square inch of sealing area will lead to a better seal. Remember, the header gasket is under tremendous heat and pressure. The smaller sealing area allows for thermal expansion, and concentrates the clamping force. Remove the raised area only if you like replacing gaskets often. They install easier if you cut the flange so that there is two flanges serving 2 ports apiece instead of one long flange.
Click to expand...

Thanks. Looks like I should have had Woody cut that flange down into two segments instead of four. Mine are already powder coated so I am stuck with what I have.
 
Back
Top