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HD Rider · 05-07-2019, 10:57 PM

I'll retorque the head this weekend.
I wonder if adding a surfactant to the coolant would help. When I got home, the head was 176* at it's warmest point between spark plugs. It was not boiling over at any time.

05-07-2019, 10:57 PM	#8
HD Rider Senior Member Join Date: Oct 2018 Location: Glendive MT Posts: 155	Re: Foaming Coolant I'll retorque the head this weekend. I wonder if adding a surfactant to the coolant would help. When I got home, the head was 176* at it's warmest point between spark plugs. It was not boiling over at any time.