Engine coolant flow

[Dewmore]

this  Have removed water pump and have found the coolant passages on right side plugged with crud and other sediment.  The small passages upper and lower. Can anyone furnish the information where this flow would have  traveled.  This is a 98 tracker 1.6 16 v. Have just purchased knowing it had a coolant problem.  No circulation, first thought thermostat,  crud and rust can be seen in picture from storage

[fixkick]

this  Have removed water pump and have found the coolant passages on right side plugged with crud and other sediment.  The small passages upper and lower. Can anyone furnish the information where this flow would have  traveled.  This is a 98 tracker 1.6 16 v. Have just purchased knowing it had a coolant problem.  No circulation, first thought thermostat,  crud and rust can be seen in picture from storage

in the  main web page, are two topics,  one is overheating, and the other is frigid cooling.
its is all there,  to see.

see 16v valve detailed photo I made, long ago,   (overs 8v and 16v and j18 DOHC sport..

https://fixkick.com/overheating.html

why not just back flush it? using a water hose to garden water faucet..

the AF we just send to the recycles. Anitfreezecoolant