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Reply to "Question about expansion tank cap"

first, given coolant mods are fairly common, but their implimentation vary grately,
does your expansion tank ONLY have the over flow hose from the supply tank into its bottom, with a drain off hose at the cap neck.

I have my "opinions" of how the coolant system "could" work, but I am new to the group so mine should be over ridden by those with more knowledge.

I invisioned the original designed expansion tank as an overflow reserve, thus the cap does not need to have a lower pressure seal and the cap mainly serves as a dust cover and top sealing used.

CORRECTION TO ORIGINAL REPLy

would it hurt if the expansion tank had a lower seal and a pressure setting...maybe. by having a pressure in the expansion tank it would increase the relief of the supply tank.

SORRY for the original erronoius posting

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