[Barrnecessity]

What would cause the furnace to leak stove oil? There is no leaking around the fuel line. That part is dry. It seems to be under the motor part.
I am totally out of my element here.
The furnace is in the shop not my home.
I turned the thermostat off, the fuel valve- off, the breaker to the furnace- off.
I have a call in to a furnace repairman but I would kind of like to know what I might be dealing with.
Appreciate any help.
Thank you.

[Grady White]

There are several possibilities but the most common are:
Dirty nozzle
Warped or otherwise damaged end cone
Heat exchanger plugged (Furnace needs cleaning)
Cracked heat exchanger

[Barrnecessity]

Thank you so much for replying Grady White. :)
Are any of these things that I can do?
Check and clean or change the nozzle?
Clean the furnace?
Check to see if the heat exchanger is cracked?
Or do I have to rely on the "furnace man".. who has not yet returned my call. It's a good thing that the furnace is in the shop and not my home, it went to minus 34 last night...
Mg

[Grady White]

If you are truly out of your element, you'd best wait for the furnace man. If you told him the furnace was in your shop, I'm sure you are a bit lower on his priority list than homes or businesses without heat. At minus 34 I'm sure he has more on his plate than he can handle.

[Barrnecessity]

Yes, truly out of my element.
I am recently widowed and absolutely none of the furnace,plumbing,shop etc. stuff is even remotely in my loop sadly.I just know my husband always kept the shop heated. I am trying to learn some of the basics so I am not totally ignorant when I call for help. If it is something I can do though, I am willing to learn and I suppose I will be doing a lot of that.
Thanks again for your help.

[Grady White]

Often local community colleges or technical schools offer short courses for various types of home maintenance & repair. It's certainly worth checking into.