1936 radiator

1936 FORD RUNNING 8BA , C4 GEARBOX COPPER RADIATOR WITH 15lb PRESSURE CAP HAVING PROBLEMS WITH RADIATOR LEAKING AT DIFFERENT POINTS SHOULD I DROP TO A 4lb CAP

 

Is it a new radiator are the stock Ford. If it's the stock I would only run the 4 after I had the leaks fixed.

 

15 lb is too much even for an aftermarket 36 rad, my rad guy tells me the top tank is too large and will swell from the pressure. I run 7 lbs in mine, they're huge rads anyway, shouldn't need pressure to cool properly.

 

To Trollst & 325W Thank You for your input
PARSO4