Netsock wrote:

"bob" wrote in message
...

The problem showed up (water in oil,
hydrolocked with water in pistons 5 & 7) in late July in Texas after
putting
many hours on it since "winter" (we had a mild winter last year and even
if I
forgot to drain it, I don't think it got cold enough to freeze under the
boat
cover, under the padded motor cover).

Being covered or under a padded box will only slightly slow the ambient
temperature from reaching the block.

If it was 30 degrees out for any length of time, your block was 30
degrees...period.

--
-Netsock

"It's just about going fast...that's all..."
http://home.insight.rr.com/cgreen/

I have to agree but not sure about "any length of time" based on the water
spigot in the yard. Wrap a rag around it and it doesn't freeze. Throw a sheet
over the plants and they don't freeze. The boat motor is much better insulated
than these things. I understand the plant gets some radiative heat from the
ground but the pipes with rags on them don't.