I am experiencing a smell of oil from my boiler, particularly obvious in the mornings when entering my kitchen. thorough inspection has not produced any sign of internal leakage. This first happened some six weeks ago. Any suggestions ?
It will be your oil pump seals. Put a dry finger under pump to prove this, they normally go at the rear where it joins to motor. you can get new seals but I would not bother, get a new pump from Plumb center or Parts center.