1983 not running right

[Lwalters]

I'm having issues on startup won't turn over on its own and I have to give it tons of gas. I have an edelbrock carb brand new, I'm also having issues with white smoke for about 2 minutes after startup and too much gas will turn it black, also when I go to take off about 5 minutes after startup it will smoke pretty good then stop. Any ideas of what it could be and any easy fixes?

 

[1973c10]

Is is losing water ??
Could be water getting in to a cylinder

 

[Lwalters]

No everything looks fine on the outside not having an issue with oil or water

 

[chengny]

Did you have this problem before the new carb went on? What model carb and what make/style manifold is it mounted on? Did you set the floats and choke per the manual before running the engine?

 

[smoothandlow84]

Definitely sounds like a fueling/carb adjustment issue.

 

[MikeB]

White smoke after cold startup can indicate worn valve guides, and/or old cracked valve stem seals (or o-rings on pre mid-80s engines).

What happens is when the engine sits for a while after running, hot thin oil runs down the valve stem tip onto the back of the valve or into the cylinder. So, at the next start-up, that oil gets burned. Once it's burned, the leak is still there, but only a very small amount of oil leaks down into the cylinder and is rapidly burned off. (As opposed to having it drip into the cylinder for several hours after shut-off).

However, when I've seen this problem, the smoke usually lasts for only 10 seconds or so until all the oil is burned and cleared out of the combustion chamber. But I guess 2 minutes worth of smoke could indicate a really worn valve guide that lets a lot of oil drip down into the cylinder after the engine has been run and shut down. Or maybe, a large amount of valve stem clearance gets tighter as the engine heats up.