Thread: Radiator Overflow help

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Try and find a local tool guy..Snap on,Matco..and look for a funnel called teh "Spill Free Funnel" Works great for filling radiators and no spilling any fluid

Once you shut off a running engine the water in the radiator will heat up a little because it's absorbing the engine heat. This may be the source of additional pressure.

If the radiator is overfilled, it may be expelling the excess as the radiator usually finds its own level at normal operating conditions. Get a mirror and check the fluid level.

If it persists, install a coolant recovery system-basically one of those aftermarket aluminum/stainless cylinders sold by the street rod parts houses. I dollar well spent. In my 302 powered 48 Ford, it constantly peed out coolant and I would always have to add some. I installed one of those coolant recovery cylinders and never had a problem after that.

A twenty pound cap sounds excessive???