I ran my motor about 10-15 minutes after I got my heater reinstalled and noticed that the heater hoses took longer to heat up than the radiator hoses, especially the return side hose. Finally they did heat up to the point, like Denny said, that they were hot! Then the heater began blowing hot air when activated.

Spot


Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod