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Author Topic: Gasoline on Plug Face  (Read 3064 times)

Richard Madison

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Gasoline on Plug Face
« on: March 21, 2004, 06:28:54 »
Took the plugs out yesterday...all had some carbon on them which I understand is caused by a rich fuel mixture.

Also, the tip of one plug had gas (petrol) on it. What can cause this?

Car seems to run OK but may need some tuning, engine breaks up some with a little popping at 3000rpm plus.

What does a gas covered plug indicate?
Thanx,

Richard M
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1969 280 SL, Tunis Beige, Euro Model (Italy).

Naj ✝︎

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Re: Gasoline on Plug Face
« Reply #1 on: March 21, 2004, 07:08:06 »
Faulty Plug :oops:
Try a new one to see the difference (unless you have a cracked cap or a burnt out HT lead/resistor).
I had one a few weeks ago.
naj

65 230SL
68 280SL
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68 280SL

ted280sl

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Re: Gasoline on Plug Face
« Reply #2 on: March 21, 2004, 08:33:05 »
Richard,
  Fuel on the spark plug has one of two causes.
1. There is no spark getting to the plug. A failed wire or poor conection should be investigated.
2. A clogged fuel injector.
  Keep us informed of your progress.
Ted
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