Spark plugs removed.
I don't really know what I'm looking for, but I notice:
- the plugs are coated in oil, but they don't look quite like the "oil deposits" photo in my Haynes manual
- the insulators are blackened, looks kinda like the carbon deposits photo in my Haynes manual - mixture too rich?
- the arms are rusted - seems normal
from left to right: 1,2,3,4,5,6
another view, bottom to top: 1,2,3,4,5,6
#1 plug immediately after removal:
#2 plug immediately after removal:
#6 plug immediately after removal (definitely in the worst shape - blackened, makes sense given the dieseling issue):
