Re: Coolant flowing from radiator cap at speed
Service Bulletins discusses "bending" the overflow tube inside the radiator neck to make it less "in the flow" coming up from the motor. Overflow was a problem even "in the day."
Its possible to "add on" to this tube also using a short piece of Tygon tubing - and extend that overflow level up into the radiator cap (almost.)
Other solutions involve trimming down your water pump vanes (to reduce the quantity) or putting a "flow restrictor" (sold by the parts vendors) in the upper tube, or incorporating a thermostat (sold by the parts vendors.) Any of these will not make a sensible change to your motor temperature as the wide open flow is probably too high anyway. (and the biggest resistance to heat travel is at the copper tube/air juncture at the radiator exterior.)
As others have said, the Model A was designed such that as long as the tubes are covered by water at static level, there will be enough cooling.
Joe K
__________________
Shudda kept the horse.
|