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Old 06-26-2019, 01:52 PM   #3
anothercarguy
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Join Date: Jan 2013
Location: Bowen island, BC
Posts: 64
Default Re: 59AB Cooling System Advice Needed from the Experts (not an overheating issue)

I wondered if the foaming/frothing coolant was a result of operating with a lot of air in the system (a gallon low). Yesterday while running in the shop did not see any foaming. Thought it was aresult of the issue and not the cause.

Just finished testing the rad cap...held to 7.5lbs, then released...works and sealed as it should.

Thought maybe the head gasket was starting to fail under load? FRankly, I'm guessing, and seeking all of your wise advice and input.
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