I want to do a complete flush of my system.

Right now it has some orange stuff in it, and I dont like it for some reason. It needs to be changed, and I want to go back to green.

Some time ago I saw a link to some instructions where a guy hooked up a water hose to the water inlet on the block or something. Has anyone else seen that link? It had full intructions and everything on how to get every last bit of coolant out.

The main thing im worried about is getting them mixed. I want to make sure I can get all the old out.

Can someone help me?

 

I've heard of people pulling the heater core hoses and running a hose through them, but not really on the motor. Just make sure you aren't running cold water into a hot motor. I'm actually doing a chemical type flush in my system right now, there was quite a bit of build up inside the upper pipe so I tried a couple bottles of Prestone flush but wasn't impressed. So now I'm trying a couple bottles of Zerex, drive on that for a few days and see if it cleans up. I'm going from a green coolant to a waterless one.

 

words and pictures for coolant flush from TDR mag...courtesy of NWBombers

 

Neat, thanks.

 

Thanks J. Thats exactly what I was reffering to.

 

The only problem with mixing long life coolant (orange) with green is that it becomes short life coolant. No need to get every last drop out.

 

infidel-since I`m not familiar with the different types of coolants yet, could you give me some advise and expertise in that direction?Thanks

 

Well there are basically two different types of antifreeze, long life and regular. One is for people who don't want to change as often, the other for people who feel it's good to change more often, mainly to flush out sediments. Colors many vary but the long life is usually orange and the regular green.

As for the difference in-between brands, there used to be two factories in the US producing antifreeze, one burned down about two years ago...

 

I was told that when you mix orange and green the silicates come out of solution causing a brown sludge like substance to form on the bottom of the radiator or pretty much any place it can settle.