• 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.)
  • When posting a classified ad, you MUST select a prefix from the drop-down next to the subject line. If you don't you will get an error and your ad will not be posted!
Tips
Tips

Heater Valve Leak

Share this page

Jim_Gruber

Jim_Gruber

Yoda
Country flag
Offline
Ok so I took apart Bugsy's Heater Valve for the 3rd time today in an effort to stop a pesky leak. Teflon tape, new #5 O Ring, grease inside the packing, etc. Now I have a major leak at the base. Frank C. suggested a rubber hose washer which I am going to install tomorrow morning. So install dry or go with Blue Permatex as well. Using Permetex Blue only = worse leak than ever.
 
RUBBER hose washer but check the bottom of the aluminum base plate.
They pit and can leak there. If it's not too bad, a few seconds on a belt sander may remove the pits.
 
Frank, Rubber definitely and not a vinyl washer. Bottom looks fairly smooth but I'll smooth it out again.
 
I had this same problem recently. After close inspection I found that the heater valve had been over torqued which cause the wings to be pulled down and giving the entire mounting surface a concave shape that wouldn't seal no matter how much "goop" was used. The solution was a few passes of a file until the bottom was perfect flat again. Then I used a gasket, coated both sides with RTV, set to proper torque and gave it the full hour to set. No more leaks.

JACK
 
Any idea of the proper torque specs. About to head out to the garage to see if I can stop the leak.
 
Well rubber hose washer didn't do it. Squeezed out around the bottom of the valve. Made a gasket from cardboard, added hylomar, no more leak.
 
Back
Top