Unless your coolant is very low all of them are below the level of the
coolant, which is why they weep when they start corroding through or there
is a bad edge seal, but I'm not saying they would pop in a freeze. They are
not machining access holes either, just a side-effect of the casting process
as you say, which is why they are known as 'core plugs' in my experience,
the 'core' being the inner part of the casting mould.
----- Original Message -----
From: <Editorgary@aol.com>
To: <mgs@Autox.Team.Net>
Sent: Thursday, October 14, 2004 5:08 PM
Subject: Freeze Plugs
> First, they really aren't "freeze" plugs, since they wouldn't pop if the
> coolant froze; they're too high up in the block. They're machining plugs
and
> an
> artifact of the way the engine is cast.
Check out the new British Cars Forum:
http://www.team.net/the-local/tiki-view_forum.php?forumId=8
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