Thread: Rusty Coolant
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Old 10-12-2020, 12:49 PM   #11
1crosscut
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Join Date: Feb 2011
Location: Lincoln, Nebraska
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Default Re: Rusty Coolant

Quote:
Originally Posted by 31 Woody View Post
Just what it says, I have rusty coolant. I have tried the vinegar trick, I have flushed, flushed again... Vinegar actually caused leaks from my experience. My Dad always ran water because he said antifreeze creeps in places water can’t (smaller molecules).

The engine is only a few years old on a rebuild where it was extensively cleaned out. The radiator was replaced after the vinegar experiment and subsequent leaks. But it’s still rusty.
What do you do to stop the rust? Is there an additive? Do I run antifreeze instead?
I've seen this stated numerous times on this and other forums. I just don't see it happening but if so what diameter hole does one need to put in a container of a 50/50 mix to separate the coolant back out of the water?
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