New should have been a first step on the list?
Run it, drive it to see where it is coming from. Put a few tanks of gas though it looking for the issue. No major damage is going to happen.
1. After a good run let it sit and check oil. Any milk? If so probably a head gasket or cracked head and the vapor is burning off through the oil.
2. Could still be a head gasket from a water passage, but you will have to pull plugs to see. One will be super clean.
3. If everything checks out maybe not getting up to temp and the exhaust temps are not able to suspend the moisture all the way out of the pipe?
Thanks for the suggestions, I will do that.
The tech tips called for changing the oil after your first initial start (once you’ve warmed the engine up so the oil is hot). Of course it also called for checking and topping off the oil as needed. Oil looked normal to me, I just needed to add about a half a quart.
The white smoke isn’t overwhelming, but enough that it made it uncomfortable in my shop even with the door open. Definitely running rich or burning off some old crud. I checked the radiator this morning, it seemed normal. Also checked the oil again and it seemed normal.
I am leaning towards fuel quality issues. I put a new hose on the fuel pump to a gas can, blew out the line between the pump and carb, added a new filter, and rebuilt the carb. Is it possible there is still old gunky fuel in the pump itself that needs to work itself out? I might as well get a new pump so I can eliminate that.
Another question I had is that the truck does not want to start after you stop it. It will just crank and crank. I think that's because I am running the line into a gas can rather than gravity feeding from the tank down to the pump.
