On another thread, a member "said" that he did a CLR flush. An explanation ,Please?
The engine block on a T can and does develop a lot of rust and scale in the water jacket - especially if it hasn't been run in a long time. Once you clean all of the junk and pieces out a CLR (the product http://www.jelmar.com/CLRbasic.htm) flush helps to stop the rust and keep any more junk from forming.
Dana, I was the member to whom you are referring. Basically, I drained the cooling system, poured in about a gallon of water, then put about another gallon in a bucket. Then, I poured a 28oz jug of CLR into the bucket and dumped the whole shebang into the rad. Filled to normal level with regular water, then drove around the yard for 15 minutes.
After that, I drained the cooling system again, refilled with plain water, drove, drained. I then took off the block rad hose and rinsed the block out completely with a hose for about 10 minutes. After hooking up the block hose, I refilled with about a gallon of antifreeze and the rest with water. I also put a couple of drops of Dawn dish soap in there as well.
wear rubber gloves and some eye protection.
Mix a Qt. of CLR into 2 gallons of warm, almost hot, water.
pour it into the block and let it set for 20 minutes.
Flush it all out real good with clear water.
If it was real bad just do it a second time.
This is the first I have ever heard that it will keep rust from forming again.
All hardware stores and building supplies have CLR.
Calcium, Lime, Rust
OOPS, Zachary beat me to it.
I would not drive the car with that stuff in it.
If it dies that stuff will raise hell if left in there very long.
20 minutes is long enough.
I have also posted about CLR. Depending on where your car lived most of its life, It can have Calcium(C) Lime(L) or all have Rust(R) which is what CLR is designed to remove. I do basically the same thing mentioned above but I let I sit overnight. It has never hurt anything I have used it on. The next day I flush it out good and then install some good anti-freeze to be the rust preventive. The CLR is not a rust preventor, but it will not induce rust either. Remember to do a good cleaning before the CLR to give it a better chance to clean up whats left. If your car had a water pump it may have put grease into the radiator. That also needs cleaned out before the CLR treatment. I use a can of crystal Draino pre-mixed with enough hot water to fill the radiator and block. Let it sit overnight also. It will not hurt anything as there ad says "will not hurt your pipes" I have used it for years with very good luck. It will only remove grease and not do anything for the rust. But without removing the grease or oil the CLR does not work well. Use gloves, glasses, and common sense while using the chemicals. And both the CLR and Draino are for home use and can safely be flushed down the drain. (Use the sewer drain and not a storm drain) Good luck. One last thought. If your radiator or block is not leaking only because the rust and crud is stopping the leak. A very good cleaning like this will sometimes open a seep or leak. It is not the chemicals fault. It just brought the problem to the surface.
I did this on my Jeep and it worked great, but dont drain it in the driveway!!! Mine is now stained rust color forever....
Just CLR the driveway and then pressure wash it.
Sulphuric acid will clean oil and rust stain from concrete, too. I used to do it at a service station I worked at 40 years ago. If the stain is just oil, we used to wet the stain and then pour Tide washing powder (not the liquid) on the oil stain and scrub it in with a strong bristled shop floor broom.
Thanks for the explanations....