diy cooling system flush?

[ross1]

i just got a new pwr radiator and i've had b&g stop leak in the old one for about 3 months, i want to flush the system before i put the new radiator in but wasn't sure the best way. 1. remove thermostat and run hose through thermostat and let it runout the lower hose or should it be done from the bottom to the top? that might sound dumb but i heard somewhere to run it from bottom to top... any help is greatly appreciated...

thanx,
ross

 

[gixxer750]

it wouldn't hurt to get some chemical flush in there, and run it for a while. Then pull your radiator out, and flush reverse direction of cooling system flow for a while with the water hose. When you get done with that, rinse it out in the normal coolant flow direction for a little while, then you are done.

Note: When doing the chemical flush, it usually helps to turn the heater on.

 

[Red Dragon]

look on the site that hosts our online TSRM, there is a write up on DIY coolant flush thats good, goes through pouring the distilled water back through the coolant hose going from head to heater core to flush the block, etc..

http://www.cygnusx1.net/supra/techtip/coolent_flush.html

 

[ross1]

thanx guys, gixxer yeah on my way to work i stopped and put some prestone flusher in there i just wasn't sure which way to run the hose water in before putting the new coolant and distilled water in

but i think i got this now...

thanx again
ross

 

[boost fiend]

run the cleaner for a lil while and then just flush it in a normal fashion.

has worked for me several times!