Technical Possible Engine Problem ?

[docorangepeel]

Hi,
When I changed the plugs on my B i noticed a lot of staining in one of the plugs as shown in the picture below. The staining was only seen in that singe plug and all the others are clean.

Does anyone know what this could be? The engine is working spot on and the oil and water all look good.

I don’t see any cream crap on the oil cap or anything like that.

Thanks
Doc Orange Peel

 

[Phil R]

Hello,

I had similar when I changed the plugs recently.
The engine is working OK and has just gone through MOT with flying colours

Think it could well be condensation/water that gathers and is held in the spark plug recess.
As a matter of interest which plug was it , looking from the front towards the engine

 

[docorangepeel]

Hi
Its the first plug on the right side when looking at the engine from the front of the car.