Author Topic: Spark Plug - oil spot around plug  (Read 2366 times)

Sept

  • Guest
Spark Plug - oil spot around plug
« on: May 14, 2016, 14:33:33 »
I noticed today a "wet spot" of oil around the No. 4 spark plug on our car..1971 280 SL.  This would indicate it's blowing a bit of oil around the plug when running..it isn't very much but it is wet to the touch.  Thoughts on what's causing this?

Tyler S

  • Associate Member
  • Platinum
  • ******
  • USA, CA, Encinitas
  • Posts: 1613
Re: Spark Plug - oil spot around plug
« Reply #1 on: May 14, 2016, 15:30:42 »
The oil could be caused by the ball stud base in the head just above the spark plug. You can use a small mirror to check it out.
http://www.sl113.org/forums/index.php?topic=16157.msg111692#msg111692
1968 (67) 250sl. 4 speed manual. DB180 Silver
1955 220 Cabriolet A. White Grey
2019 E450 Wagon. Majestic Blue
1936 Ford PU Flathead V8. Creme on tan interior.
1989 Volkswagen T3 Westfailia Campmobile. Dove Grey (blue)

Sept

  • Guest
Re: Spark Plug - oil spot around plug
« Reply #2 on: May 14, 2016, 19:16:16 »
Thanks..