Cleaning Internals Of An Alloy Radiator

[GTR_JOEY]

Done a bit of research on this, cant find anything 100% on how to clean the inside of an alloy radiator

mine isn't blocked but Im suspicious that there may be a light build up of corrosion in mine that may be reducing the cooling efficiency..

Just looking for something to soak it in, I don't want to use additives and have it running though my engine

cheers

[Hadouken]

reverse flush it.

Put hose on outlet and pump water through it. Try and make it as snug as possible with some rags or use your hand to seal the gaps.

Maybe run a radiator flush first and then do the hose.

[GTR_JOEY]

yeah done that already, I have a bit of kit that will also throw compressed air down it....

im looking for something that will get it back to its efficiency at new

really get rid of everything you know..

people have suggested using white vinegar

[Tommy Kaira RL]

CLR clear might work. It cleans scale off the coffee machine

[GTR_JOEY]

hmmmm interesting.. any possible side effects

[Dale FZ1]

Cummins Fleetguard do two products. One is acidic, suits cast iron engines.

The other is alkaline, suits everything else with alloy heads, radiators etc. That's the one to get.

[GTR_JOEY]

great! thanks Dale

im just going to let it sit in the radiator over night, not going to run it though the engine

should still do the job I imagine?

[Dale FZ1]

The idea is to run it through the system, get some temp into things. There is a detergent component in the stuff. You have a heater core and all the ally bits in the engine. It can't hurt anything.

The best trick is to flush the radiator/heater/engine block clear before you put this stuff in. Don't forget to remove the bung from the block so it's drained properly.

Find a nice road to take a leisurely Sunday cruise for a couple of hours while you run it. The effect should be similar to a long cycle on a dishwasher.

[GTR_JOEY]

So drain all the coolant, Flush with water

then add distilled water and this stuff?

go for drive, drain and then fill with new coolant and distilled water?

[iruvyouskyrine]

Maybe just take it to a radiator specialist? There is still some left out there and I'm sure they would have a few tricks.

[GTR_JOEY]

I'll just do it myself man, think it's around the 150 for those guys to clean it

[iruvyouskyrine]

Fair enough, let us know how you get on mate

[GTR_JOEY]

Will do

[Dan_J]

why not just clean it with fuel, best cleaner around and works on intercoolers too

just make sure to rinse it with water