I was going to fill mine with beer - but then I thought... Why waste good
On Fri, Nov 19, 2010 at 6:07 PM, BJNoSHOV8 <email@example.com> wrote:
> Street engines:
> In the old days there were products made and sold to seal up radiator leaks
> and so forth. The one that I recall seeing was a dark red powder, sold in
> small cellophane packets. You pour it in your radiator while your engine is
> running. I don't know if it sealed leaks or made a mess or both. The
> concept of Portland cement is probably the same- pour it in and hope it
> migrates to the cracks and seals them. Seems to me that if you put very
> much of it in your engine it would just make a mess.
> Dragster engines:
> For a single run down the 1/4 mile, some engines don't even use radiator
> cooling so theoretically they could have their blocks filled with cement.
> Portland cement by itself is not very strong. Mix it with water, let it
> cure, and it breaks up easily into little pieces. As for pouring it into an
> engine, the first thing it will do during curing is to shrink so it might be
> kind of a loose fit around the cylinders. I'm not saying it doesn't do
> something to provide strength, it just seems that it has characteristics
> that would work against it. I'm assuming when they say "cement" that they
> mean portland cement. Portland cement is a grey powder, like flour. You
> mix it with water, aggregates (sand and gravel), and usually some additional
> chemicals, and it hardens and becomes CONCRETE. Cement by itself can be
> mixed with water and it will harden but it isn't very strong. There are
> some cement based construction materials that could be used that would have
> more favorable properties (non-shrink grout).
> Anyone ever heard of such a thing?
>>> My machine shop guy showed me an engine filled with cement.
>>> It was an extremely high performance engine he was building.
>>> I was a bit taken back by it when he explained how it dissipates the heat
>>> better, strengthens the lower end of the block from too large a bore, but
>>> does make it a little heavier.
>>> It all made sense when he showed me and explained it as a machinist only
>>> knows how to explain it.
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