The t'stat is held in the housing by a sleeve. It's hard to remove without
damaging either or both, so just punch it out and replace the t'stat and
sleeve.
jim
"hank" wrote in message
ups.com...
My engine does not seem to get up to operating temperature, so I
suspect that the themostat is faulty. I removed the housing but could
not remove the thermostat. Does the housing come apart and if so how
does it?

Thanks,

hank