Oil on spark plugs
Oil on spark plugs
This weekend I did a compression test and found oil on my plugs.
"I found oil on the threads of the plugs, so there must be a leak
from the valve cover or something. There wasn't too much oil, but does anyone know more about this? I was told that its relatively common, and as long as there aren't puddles it's not a huge issue (but at some point a new gasket set would solve the problem)."
http://forums.maxima.org/showthread....hreadid=208508
More pictures
Thanks
-hype
"I found oil on the threads of the plugs, so there must be a leak
from the valve cover or something. There wasn't too much oil, but does anyone know more about this? I was told that its relatively common, and as long as there aren't puddles it's not a huge issue (but at some point a new gasket set would solve the problem)."
http://forums.maxima.org/showthread....hreadid=208508
More pictures
Thanks
-hype
Yes I have removed my valve cover without replacing the gasket
However, that was well over 20k ago, and last time I replaced my plugs ~5k ago I had no oil on them
Also the valve cover gasket runs around the edge, but aren't there separate ring-type gaskets that seal the plug cylinder?
-hype
However, that was well over 20k ago, and last time I replaced my plugs ~5k ago I had no oil on them
Also the valve cover gasket runs around the edge, but aren't there separate ring-type gaskets that seal the plug cylinder?
-hype
Originally posted by xHypex
Also the valve cover gasket runs around the edge, but aren't there separate ring-type gaskets that seal the plug cylinder? :confused
-hype
Also the valve cover gasket runs around the edge, but aren't there separate ring-type gaskets that seal the plug cylinder? :confused
-hype
Did you replace them? No? 
Originally posted by Y2KevSE
Yes, there are separate ring-type gaskets for each plug. Did you replace them? No?
Yes, there are separate ring-type gaskets for each plug. Did you replace them? No?
And actually while I'm thinking about it: I have a little oil in each cylinder 1-6 as indicated by my pictures and plugs. I have removed the front valve cover (1,3,5) to polish it, but I haven't removed the rear valve cover (2,4,6) yet it has oil in it too
Anyway thanks for the comments Kev.
-hype
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