Hi,

Before work = ok?
after work done = not ok?

What was change/move/touch!!!!!!

Check the temp sender wire near thermostat, you have a "direct" short/wire,
that's why the gauge is showing full, am pretty sure!!!!!!

Does she climb fast!!!! how long after the engine as started does it goes to
"full" (hi temp)??????????? very fast or slowly (10-15 minutes), very
important question here! If it's a short it should go right away at the "Hi"
mark, if it's a cooling problem, it will go slowly at the "hi" mark.

Let us know!
Cheers, Ben
http://pages.infinit.net/eurokit/