Though I have never blown a freeze plug on either of my Healeys I have blown
several on the MGA race engine in my Elva Courier. Luckily they were ones
on the side of the block and I was able to access them--the one on the rear
of the block is inaccessible due to its proximity to the firewall.
In light of my experience I now use the Dorman plugs whenever I rebuild an
engine. I clean the recess down to fresh metal and set the plugs in a
fast-drying two part epoxy and have had no problems since I started doing
this. BTW I have experimented with trying to tap the hole for pipe thread
so that I could use a screw-in plug but could not find a tap that would get
a bite on the shoulder.
On Tue, Jan 18, 2011 at 2:27 PM, Steve Gerow <email@example.com> wrote:
> Hello Tracy,
> I've had the Dorman plug in place in the left-lower block spot, opposite
> pedals for 3-1/2 years. See
> I used light gray Permatex RTV as a sealant but in the future would use a
> hardening one.
> Attached is the plug currently. It may have a slight weepage, but I had a
> leaking valve cover gasket a while ago and what shows might just be residue
> from that.
> Steve Gerow
> Pasadena, CA, USA
> [demime 1.01d removed an attachment of type image/jpeg which had a name of
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