[hamondrye]

I just tried the heater out for the first time since the motor was rebuilt in my '69 912. NO HEAT! I made sure that the flapper boxes are working properly along with the gates. Everything closes when I pull back the heater control lever. When the car is at operating temps, it blows ice cold. All the controls on the dash work fine. What gives? Any suggestions? It getting cold here in Michigan. Thanks in advance for any suggestions.