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Stan/MO. · 07-11-2010, 09:33 AM

I had the same problem on my coupe, and no amount of flushing would help. This is what I did. Go to the hardware store and get some muradic acid. Plug the bottom outlet and put about 1 1/2 gallons of water in the radiator, then pour about a quart of the acid in, and fill the rest with more water. Plug the top inlet and the overflow. Rotate the radiator while shaking it gently. Let it set for about 1/2 hour. Drain the raditor, and flush it well, might want to put in some baking soda to neutralize the acid as you're flushing. After you're certain it is flushed well, put it on the car and try it. The first thing you'll notice is the increased flow coming in the top of the radiator. Let it set and run, and see if it gets hot. If not ,then you have solved your heating problem for a lot less than a new or recored radiator. All I know is it worked for me. Also be VERY careful with the acid. Good luck, and let me know if it works for you. All the best to you and yours.

Stan

P.S. I wouldn't do this on a "show" car, but for a driver it's worth a try.

07-11-2010, 09:33 AM	#13
Stan/MO. Senior Member Join Date: May 2010 Location: Hannibal, Mo. Posts: 124	Re: Radiator for a driver I had the same problem on my coupe, and no amount of flushing would help. This is what I did. Go to the hardware store and get some muradic acid. Plug the bottom outlet and put about 1 1/2 gallons of water in the radiator, then pour about a quart of the acid in, and fill the rest with more water. Plug the top inlet and the overflow. Rotate the radiator while shaking it gently. Let it set for about 1/2 hour. Drain the raditor, and flush it well, might want to put in some baking soda to neutralize the acid as you're flushing. After you're certain it is flushed well, put it on the car and try it. The first thing you'll notice is the increased flow coming in the top of the radiator. Let it set and run, and see if it gets hot. If not ,then you have solved your heating problem for a lot less than a new or recored radiator. All I know is it worked for me. Also be VERY careful with the acid. Good luck, and let me know if it works for you. All the best to you and yours. Stan P.S. I wouldn't do this on a "show" car, but for a driver it's worth a try.