Reply to "Radiator Choices - Cooling System Info"

davidnunnMember

Hey George,

With regard to your self-bleeding cooling system mods, I have a few questions: why doesn't the suction line on the bottom of the header tank (formerly the overflow tank) drain the tank in seconds? Is it because it's a totally sealed system and the suction line can only draw out as much as the bleed lines can feed in?

If you reduced the size of the line from the bottom of the header tank to the water pump, from -8AN to -6AN, what effect would it have, if any?

Also, since I have bleed fittings in the back of my cylinder heads, should I connect those fittings to the header tank as well? If so, what size hose would you recommend? Perhaps -3AN or -4AN?

I just want to make sure I have a complete understanding of the theory behind the mods, before taking the plunge!

Thanks,

Dave

8/11/144:43 PM

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