I should have installed the weber carb months ago- Now I am getting a puff of grey smoke when I shift. I don't see any blue/ rainbow look to the smoke so I don't think it is burning oil, but what is this? Unburnt fuel? Why only when I shift?

 

Any Suggestions???

 

when the headgasket went in my old truck, the 1st sign was a puff of white-ish smoke every shift

 

I already looked for coolant in the oil, because I have been down the HG road before (Last truck met that fate, temp gauge didn't work... end result, death). I didn't see any creamy-ness on dip stick/oil cap. But now I am VERY WORRIED I have a much more serious issue than a bad carb.

 

um every time you shift you get a puff of smoke? well with my last engine it was bad vavle seals and really old gas combination ..... I shouldnt have been driving it but, put a new engine in my 83 and it cleared it up reuesed to carb so I dont think it was the carb you could try leaning out the carb to see .

 

My husband just put mysterious gas from a random gas can at his jobsite in my truck last week... But he claims it was smoking BEFORE the mystery gas and he was convinced it was indeed gasoline. I wonder altough if there was a ton of water in it or some other substance. Could this relate to the smoke??
I feel like the only causes I know of for smoke is 1. Head Gasket/ Coolant 2.Burning Oil 3.Running very Rich. Doesn't seem like the gas would relate, does it?

 

bad gas not burning as cleanly as it should? Id go with maybe ur mystery gas and running rich or , you have a small oil leak somewhere. just my 2 cents