How difficult is this job on a M103 2.6L engine? I am getting cylinder #3 and #6 spark plugs fouling with some oil deposits on them. I have so far on my own replaced valve cover gasket, fan clutch, fan clutch bracket and pully, top timing cover gasket, and radiator. SO keeping this mind what kind of tools do I need besides sockets and wrenches...?


Thank you.
ps I am using the proper kind of plugs, H9DC

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190e 2.6 1990. 300,000 KM
C230 K 2000, 130,000 KM