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Old 05-15-2017, 05:06 AM   #20
pilut2
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Join Date: Oct 2014
Location: Peterborough Ontario Canada
Posts: 148
Garage
Problem solved!


The large O-ring in the coolant bleeder valve was bad. There is a strange crimp in it that is likely from initial assembly, I don't think it has ever been apart. It is unbelievable that it ever provided a proper seal. The fuzz in the picture is from a rag.

It was a 15 minute, $5 job to remove the valve and replace both O-rings. Now my tank holds pressure and the coolant level only moves from mid-tank to 3/4 tank from cold to hot.
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