Oil Burner Problem

bobm202

Hello,
After cleaning 8 yr old Burnam boiler with Becket AFG burner, flue etc and changing filter, screen and correct nozzle things seemed fine two weeks ago. Now about 50% of time after around 14 seconds or so it sounds like a studdering one to three times but burner keeps going and completes cycle each time. What direction should I be looking at?

skymaster

Could be: cold oil, if single pipe system, try bleeding well, for squats change the nozzle again.I have had nozzles be bad from git go

Willis15

Have you considered a Tigerloop? Sounds like air from here.

bobm202

Two pipe system here. I was thinking to look up chimney with mirror to make sure no nests but i might just try to change the nozzle.

bobm202

Two pipe system here and it ran 8 yrs without this problem so I think it might be something Else.