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Weil McLain oil burner shudder or grinding

Could also be a partially plugged oil line - which would cause the pump to make the noise and poor ignition. Are the oil lines and tank older, or the filter not changed regularly?


  • Matt Dean
    Matt Dean Member Posts: 2
    Weil McLain oil burner shudder or grinding

    I have a Weil McLain Gold Oil Burner that is approximately 6 to 7 years old. Maybe once a day, when the boiler is tripped on, the boiler makes a noise that sounds like an empty metal filing cabinet being dragged across the floor. This lasts for a second or two. A puff of exhaust is sent out of the draft control into the basement. Other than this, the boiler seems to work fine. We have the boiler serviced annually. I am the home owner that doesn't know much about this kind of stuff. Any help would be appreciated. Thanks.

  • Delayed ignition

    is what it's called. This may be due to poor servicing, bad ignitor, etc. Try the Find a Professional page of this site to find a good burner tech in your area.

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • Jim_122
    Jim_122 Member Posts: 2

    Hire a qualified oil burner tech in your area because the burner has not been set up correctly...Look at the book which came with your boiler and burner and there is a homeowner guide to tell you what you need to do in maintenance of your boiler...If you do not have this please contact Weil-Mclain @ 219-879-6561 or their website...1zjA9qla
  • Matt Dean
    Matt Dean Member Posts: 2
    cavitation noise

    The tank and lines are two years old. The boiler is serviced once a year. I would think that the oil filter would be changed at that time.
  • brucewo1b
    brucewo1b Member Posts: 638
    Even though the filter

    may be changed once a year often times the pump strainer is overlooked
  • Darrell
    Darrell Member Posts: 303

    From where I sit...it sounds like maybe the motor is going bad. Grinding noise when it's cold that stops when it warms up. A slow starting motor would also give a delayed igntion and oily light off.
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