Maybe I'm wrong but I don't believe that to be a MAJOR concern. On Aug 8, 2012 7:06 PM, "Julie" <julie.hey.ho.lets.go@xxxxxxxxx> wrote: > Last week I was asking about the gurgling sound in my carb after I turn > engine off in my '68 zebra Bus. And tomorrow I am bringing him to my > mechanic to mess with his carb. So right now I am adjusting his valves and > changing his oil so that he is in tip top shape for the mechanic to work > his magic. And all 4 exhaust valves are tight. I adjust to .006. 1-3 > were tight but I could get a .005 or .004 gauge in them. But the 4 was > tightest of all. The biggest gauge I could get in was a .002. > > This seems scary too me. Am I worried about nothing? Do I have a problem > with my exhaust? Is it because he has been running too hot and when if the > mechanic gets his carb better, my problem will be solved? This engine > doesn't have too many miles on it and has always performed well. > > > >