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Old 04-24-2017, 01:01 AM   #1
Join Date: Sep 2015
Member Number: 7854
Posts: 79
Default black foam in coolant after top end rebuild

Greetings all!!
Another mess I'm in,
had a leaking head gasket in my 1972 345 and even though 2 bottles of blue devil was helping I decided to do a top end and take care of it. Finally got it done and the next day opened the radiator cap and found a horrible black foamy froth. The oil seems fine and has no coolant. I ran a hose into the radiator for about 10 minutes to see if maybe it was just gunk or residue but came right back. There are small bubbles coming up while she runs as well. Also put in a new water pump last week. I'm guessing something went wrong but figured I'd check with you guys first....I'll try to post pics...
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