ok, i was looking at my motor today to see if there was any milky white stuff anywhere i can see.... the intake is of so this helped big time... as i went on i looked at the no4 int valve and it had a cruddy looking stuff on it......... t wasn't thick, and it looked like maybe a coolant seeping past the gasket into the combustion chamber, but there are no signs of a mix going on so far.... the oil was changed to get the gas out from running a stock chip on a 30lb inj engine.......

when he drained it, it was like thin as hell but smelt like gas....... so i just don't know.......

does anyone have a pic of a valve that had coolant contamination on it???

thanks everyone

 

A bad head gasket cannot possibly cause buildup of anything on the intake valve. There's no path that leads that way.

Coolant doesn't build up a residue on intake valves. It does the opposite: it literally steam-cleans things. You can spot coolant leaks in the induction and cylinders of an engine by looking for clean places.

Most likely, it's fuel residue.