66 radiator

[66BVD318]

Do not have the money to replace radiator.Does not leak.Have cooling issues.Will muriatic acid hurt the radiator.

 

[Meep-Meep]

Maybe if you leave it in there for a long time you could have an issue but for a flush I'd say no. My buddy did a flush with it years ago and never had any issues. I think the Prestone flush kits contain muriatic acid anyway.

 

[daredevil]

I used fresh water and lime away in my duster and ran it a day and then flushed it.

 

[66BVD318]

Did the prestone flush last summer.Not doing anything until it warm up.

 

[Ajax]

I have a '66 Belvedere as well and I had cooling issues too. I had the radiator re-cored and the shop said that the radiator had about 80% buildup/blockage. The car is running nice and cool now.

 

[66BVD318]

Where did you have it recored.??