What air tool/nozzle do you recommend for blowing out radiators/coolers?

[boomer1025]

Just be extra careful when cleaning a radiator or any other finned cooler with a pressure washer or air pressure. I've seen alot of damage done to the core fins and the cooler/radiators had to be replaced.
If you got a unit with several coolers stacked together the best thing is to separate them depending on how tight they are together for a good cleaning.
I spray my radiator core with some aluminum safe cleaner, let soak a few minutes then flush with the garden hose in the fall.
Any other time I use low air pressure to blow it out if it needs it

 

[ericm979]

I use a cheap plastic handle with a short slightly bent steel nozzle. But I keep the pressure low and don't stuck the end right up against the back of the radiator. I prefer air to water for blowing off dust and debris. I worry that water will turn the dust into mud and it'll accumulate in crevices. Sprayed water also has a lot more energy than air.

 

[bigtiller]

I use the leaf blower every time I stop for a break while mowing. I also have the Radiator Genie which has a wand for air and a wand for water. With about 30 psi, the air does get to places the leaf blower misses. The only place I have used the water wand in on the house air conditioner.

 

[flyerdan]

Sometimes you just have to make up tools for different applications. My default is the one in back with the 10" fuel line; also have one with a 3 foot line with a bend for sweeping the floor.

 

[EddieWalker]

View attachment 558737

I use one of these air thingies pictured with a flexible grease gun line screwed into it. The threads are a perfect match, and I can bend the flexible line around the fan and into the shroud to get to all most of the radiator. I blow from the engine side out towards to the front of my tractor. It's amazing how much dust is in there!!!!

 

[Maxify55]

I use this for cleaning the floor and other areas in need.

The venturi effect is great but the air flow is all directed forward.

A strip of duct tape across the end fixes that.

Then remove it afterwards for general use, again.

I'm not much for single use tools around the shop.
Whenever possible

Guardair 75LJ012AA Long John with 12-Inch Aluminum Extension and Alloy Nozzle

 

[BHD]

on my old combine, I made a unit made out of 1/8" pipe and on the end of it a street ell, and would hook it up to the garden hose, and wash it out, it was only about an inch in depth so easy to reach in and get to all areas of the raderator, and the pressure was not enough to damage the fins but enough to wash out the dust that would build up in it,

 

[ns_in_tex]

3' piece of 3/8 od copper tube. Crimp one end and solder closed. Drill 1/8" hole in the side, near the soldered end. Mount the other end to valve to fit air hose. Then make another one just like it and make to fit water hose. This will fit between stacked cores. Clean first with air, then with water.