Radiator Cleaners??
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
All I will tell you is do NOT do a method that uses CLR in the radiator for about 30 minutes and then drain. I did it a few years ago and then had to replace the radiator about a year later. Ate up everything.
Drifting
Joined: Oct 2004
Posts: 1,496
Likes: 1
From: Lafayette Louisiana
CLR-Calcium Lime Rust. Its a product that is supposed to remove those deposits.
I tried that stuff about a year ago and couldn't tell it did anything at the time. Coincidentally, my car did boil water out today after idleing for about 15-20 minutes. I may need to take another look down in there :o
I tried that stuff about a year ago and couldn't tell it did anything at the time. Coincidentally, my car did boil water out today after idleing for about 15-20 minutes. I may need to take another look down in there :o
Heel & Toe
Joined: Jun 2005
Posts: 16
Likes: 1
From: Fayence n/a
Hi,
We have two tricks in France for this issue.
First one is that we have a washing powder called "lessive Saint Marc" which has the property of react chimically in presence of calcareous or scale. We prepare a dilution with 10% to 15% of powder, pour it into the engine, run it for five minutes until it is hot enough then flush and rinse with clean water. Repeat the process until the water flush clean out of the engine.
Another solution is to use white vinegar. Follow the same procedure as of with the detergent, letting the engine raise the temperature of the dilution to improve the reaction. It is well known as a calcareous cleaner.
We have two tricks in France for this issue.
First one is that we have a washing powder called "lessive Saint Marc" which has the property of react chimically in presence of calcareous or scale. We prepare a dilution with 10% to 15% of powder, pour it into the engine, run it for five minutes until it is hot enough then flush and rinse with clean water. Repeat the process until the water flush clean out of the engine.
Another solution is to use white vinegar. Follow the same procedure as of with the detergent, letting the engine raise the temperature of the dilution to improve the reaction. It is well known as a calcareous cleaner.
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Prestone used to make a cleaner for GM P/N 12346500.
It was also sold under Prestone P/N AS100 Heavy Duty Cooling System Cleaner
Here is the GM TSB and Instructions #99-06-02-012D (Online or at a GM dealer)
It is not made anymore but these are the components.
9 dry oz of Oxalic Acid (DAP Wood Bleach)
2 dry oz of Sodium Carbonate (Arm & Hammer Super Washing Soda)
It was also sold under Prestone P/N AS100 Heavy Duty Cooling System Cleaner
Here is the GM TSB and Instructions #99-06-02-012D (Online or at a GM dealer)
It is not made anymore but these are the components.
9 dry oz of Oxalic Acid (DAP Wood Bleach)
2 dry oz of Sodium Carbonate (Arm & Hammer Super Washing Soda)
