I just changed out a cracked oil cooler and am trying to purge the system. I let the mud drain out for 3 days, and charged the system with air pressure about 10 times until mud finally did stop coming out of the block and radiator, though we all know there is a lot left in there.

I'm circulating a degreaser and water through the system right now, and had to slip some card board over the radiator to get it hot enough to open the t-stat. I will drain the radiator and block best I can, but what I would really like is to run water into the system and let it run out without it recirculating through again. I have 600' of garden hose that the sun heats up very nicely and would like to run this through and out.

Would I want to hook the hose to the supply hose at the bottom of the overflow tank, and if so where would I open the system and which side would I block off? OR . . . is this even possible with this system? I've read where there are parallel circuits in this cooling system. I know I need to have the radiator flushed and I am going to do so, but I wanted to flush the block also as best I can.

A cooling system flow chart would be nice, so a link to one if anyone knows of one, and any other sage wisdom one cares to offer will be much appreciated. Thank you. Kevin.

1999 F350 7.3 2WD Crew cab long bed. 330,000 miles oil cooler replacement most major repair ever done to her.

 

Would I be better off posting this in the 7.3 section?

 

Yes sir. That would be better

 

Thanks Gator, will do.