Best way to flush block

[dward]

I pulled the radiator in my 02 to clean the oil off and will replace hoses, belts, thermostat, water pump and tensioner pulley.
The coolant looked good but I would like to flush the block as well.
Since everything is off could I just run a hose into the thermostat housing with the truck running and let it drain out the bottom radiator hose fitting?
If this won't work what's a better way of flushing the block?

 

[gsbrockman]

Might get a better response here >>>>> https://www.turbodieselregister.com/forums/5-Turbo-Diesel-Topics-2nd-Generation-(1994-2002)

 

[Ram4Sam]

If the old AF is not all rusty and crappy, there probably isn't much junk in there that needs to be flushed. When I did my 2001, I just drained it, removed the stat, filled it back up with water and drove it around a bit. Drained it again, put the stat back in, 50/50 distilled water and AF. The inside of the rad tank looked like new the day I sold it......

Sam

 

[Cummins12V98]

I just take a garden hose and blast out what you can then hit it with some compressed air.