I pulled the hoses off at the engine. I used the garden hose to force water through the core. First one way, then the other. Me, and the engine compartment got really wet! (In 40 degree weather!) Eventually I worked it loose and flushed all the rusty crud out.
Now I have heat! ![Clapping :clap2:](https://board.marlincrawler.com/Smileys/marlin/clap2.gif)
a good flush is always good
![ROFL (2) :rofl2:](https://board.marlincrawler.com/Smileys/marlin/rofl2.gif)