1947 WC Smoke question.

Hey Guys. Well it has been a longtime, but I have my 1947 WC Back together that I worked on over the winter. New Radiator, new head gasket, new oil and belt. I got it all back together today and started it up today. It ran like a charm! Then after about 3 minutes at idle, it just started smoking. It was a blueish/white smoke, but when you give it some throttle, it goes away. and after running it at half throttle for a while, it doesnt smoke. It only smokes when at idle, after idling for a minute or two. It dose emit ome black smoke, but thats because it is running rich. but after sitting at idle for about two minutes, HOLY SMOKES!!! no pun intended. New head gasket. No visable cracks when I had the pan and head off... clean water, new oil.. this has me flusterd! Blue smoke I can understand a stuck or broken ring, but a blueish/whiteish smoke? Anyone have any ideas?

Try retorqueing the head again. Sounds like the head gasket is leaking.

Are you certain that the white smoke is water? Under some conditions oil smoke appears white. Best test I know of is taste. Just above the muffler run you fingers through the smoke a few times while it is smoking and taste, antifreeze is sweet. Second best test is smell. Antifreeze in exhaust has a distinct smell very much unlike oil. Fill the radiator to the top and look for bubbles. If none it is very doubtful that water is coming from head gasket. Oil smoke at idle that pretty much disappears when opened up is usually valve guides. Remove the manifold and look at valve stems. Hard to describe the amount of oil that is OK or not. There will always be some oil straining on the intakes. Exhausts should be dry. Any amount that can be rubbed off is bad.