Read my Plugs!

MustangChris

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thats caused by dirty air filter, weak ignition, too cold a plug, or a defective fuel pump.

Too rich a fuel mixture, improperly operating heat riser or excessive idling.


have you tried cleaning that plug off?
 

GDTrumbo

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Cylinder# 3 looks like it has ring issues. They all look like they have reached their usefull life.

I think I would pull all the plugs, do a compression test across all 6 cylinders (3X each cyl.) and install/gap a whole new set of plugs.

Go with a standard Motorcraft or NGK plug as they produce a larger spark than the platinums. Maybe that will help some of that carbon/oil from building up so much.

Drive it for a month or so and pull the plugs and inspect again. See what you have then.

GT
 

uncltrvlnmatt

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Those plugs are junk, get new ones. #3 has oil on it, as said above possably from worn rings, but IMO more likely leaking valve seals.

How many miles on the engine/car?
 

GDawg

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uncltrvlnmatt said:
Those plugs are junk, get new ones. #3 has oil on it, as said above possably from worn rings, but IMO more likely leaking valve seals.

How many miles on the engine/car?

+1

Valve guide seals.
 

Guido

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for what it's worth. cylinder numbers on a ford are:
Rear
4 8
3 7
2 6
1 5
Front
 

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