Rocky,
Lawrie is just pulling my leg about my being here in frosty CT while he
is enjoying perpetual warmth in sunny CA. He can drive to the ocean for
salt water and sand. I can just drive down the street and get not only a
load of salt on the car but a load of sand as well.
Quarrying was a large business in this area at one time. In the
seventeenth and eighteen centuries, large stone was split off by drilling
holes, filling holes with water, then letting winter's freeze do the rest
of the job.
Books about metal casting often have a section on making hollows, and
the access holes that then are plugged. Interesting to read, and I would
like to get into a core shop to see patterns and cores being made.
Lindsay Publications has a catalogue of books on casting techniques, as
well as many others on steam and early gasoline engines.
Bob
>
> Guys, for what it's worth, I personally wouldn't want to depend on
> these plugs giving any protection against a cracked block from ice
> formation. I've had blocks crack without any movement of the plugs
> at all and once had a Chev 6 bust the whole side out of the block
> even though the plugs were out, the rad had been removed from the
> car and the only water in the block was what was left after the rad
> and freeze plugs had been removed. The bottom hose was still on the
> block, pointing upward, so it had not drained fully, The engine
> waterways were partially blocked by rust and crud, so the rad and
> plugs had been removed to try to flush the junk out of the block.
> This resulted in straight water in the waterways and no antifreeze.
> One below-zero night left the side of the block on the ground.
> (Happened in Hamilton, Ontario, Canada, circa 1970). I epoxied the
> cast iron side back on the block, being careful to seal the
> waterways, once warm weather returned. I used Devcon industrial
> black epoxy. That engine did another 10,000 miles before I replaced
> it. Had to use some stop-leak a few times.
>
> -Rock http://www.rocky-frisco.com
> --
> Red Dirt Rangers (Rocky on piano): http://www.reddirtrangers.com
> JJ Cale Live (w/Rocky): http://www.rocky-frisco.com/calelive.htm
> The Luggage Fan Club: http://groups.yahoo.com/group/luggage-fans
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