• 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.)

Popped freeze out plug 100 le mans

Share this page

HEALEYJAG

HEALEYJAG

Jedi Warrior
Offline
Popped a freeze out plug on my first day on my newly restored 100 le mans .....The car did not overheat..I am concerned with other issues.. Any ideas or thoughts I should be concerned about?

Thank You:

Pete
 
HEALEYJAG said:
Popped a freeze out plug on my first day on my newly restored 100 le mans .....The car did not overheat..I am concerned with other issues.. Any ideas or thoughts I should be concerned about?

Thank You:

Pete
Click to expand...


Hi Pete this is not an uncommon problem Probably just a case of the plug being marginally installed. There are rubber type expansion plugs you can install temporarily until you can reinstall the metal plug.---Fwiw--Keoke
 
Thanks for making me feel a little better..the engine was rebuilt by a previous owner who is deceased so I am unable to document half of the work.. I have done the other half over the past two years...Have not had a plug pop on any of the other dozen or so Healeys I have owned......will try not to expect the worse.

Pete
 
HEALEYJAG said:
Popped a freeze out plug on my first day on my newly restored 100 le mans .....The car did not overheat..I am concerned with other issues. Any ideas or thoughts I should be concerned about?
Thank You: Pete
Click to expand...
If one plug popped out I would VERIFY that the others are properly installed. The Fours used a domed type plug instead of the later cupped plugs.

When properly installed, the plug domes should have a very noticeable flat spot or even a dimple in their centers. If in doubt, they should be "tightened". There are five on the RH side of the block & two on the back side.

You were lucky this time, if it happens again there could be serious engine damage.
D
 
Back
Top