210° @ Cruise and 180° @ Stop? What's Going On?

Last time I replaced my lower radiator hose, I couldn't find a hose anywhere with a spring already in it. I ordered a spring online from a website another member posted. Only $8.99 and I think it included shipping. Fun time getting it all the way in, lol. But I eventually got it.

Here's the website.

http://www.cjponyparts.com/lower-radiator-hose-spring-stainless-steel-small-block-1965-1973/p/HW769/