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Warm Anti-Freeze- affects on old Engines?

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Warm Anti-Freeze- affects on old Engines?

Old 06-21-2008, 01:34 PM
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Jeff Worsham
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Default Warm Anti-Freeze- affects on old Engines?

Hi all- Recently learned of using warm antifreeze to clean up engines that have been sitting for decades, and boy- sure works well! Does anyone know if warm anitfreeze will harm the old paint used by some manufacturers? I hope not, but really have no parts to experiment with. Any experience soaking an engine like this?
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Old 06-21-2008, 02:03 PM
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big max 1935
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Default RE: Warm Anti-Freeze- affects on old Engines?

Right it will eat paint & some types of gasket material. Max H.
Old 06-21-2008, 03:09 PM
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proptop
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Default RE: Warm Anti-Freeze- affects on old Engines?

I would NOT put that particular engine in the crockpot 'o antifreeze! You would end up with an all silver/natural metal engine...

I also know (found out the hard way ) that it will remove the black from the black case redheads...[:@]

It doesn't damage anodizing though unless you get it too hot.

Edit: I just wanted to add something...
While I have used this treatment on dozens of engines, I have only done a few engines that had some anodized parts, and they came out OK.
A friend did an old Webra Diesel with the red fins, and he got the antifreeze rather hot...steaming...and the anodizing came out a faded pink.[:'(]

If you can't stick your finger in the solution and keep it there for a few seconds without it burning you, then it's probably too hot.
Old 06-21-2008, 05:24 PM
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Jeff Worsham
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Default RE: Warm Anti-Freeze- affects on old Engines?

Thank you Max and Proptop! I was wondering about anodized parts as well, didn't think it would do to much but glad to know there's a limit to how much heat they can take. Need to put a dimmer switch on my little pot as it doesn't have heat settings. Looks like I'll be using regular old 5% fuel to clean up some of these old engines. Thanks for the warnings! Jeff

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