cleaner for radiator before sealer treatment

riveroadrat · Apr 2, 2019

I have tiny bubbles coming into radiator. I don't know if it's a head crack or gasket problem. Whats the best cleaner before pouring in some Blue Devil?

fastfarmall · Apr 2, 2019

Vinegar 30% acid,store bought is 5 %, it doesn't effect the hoses or any metal,or the thermostat, but smell's vinegar, don't spill any on the paint.

OregonAaron · Apr 2, 2019

If it is all metal and you are very careful, muriatic acid works amazing. I filled my 81 f250 radiator (with it out of the rig) and let it sit for 15 min. Then I flushed it very well and filled it with baking soda water, just in case.... reflushed and installed. Literally cleaned all the deposits out. I would not let it sit longer than 15 min, it will eventually eat thru it.

cleaner for radiator before sealer treatment

riveroadrat

Well-known Member

fastfarmall

Well-known Member

OregonAaron

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