Leaky valve seals ??
i have a 93 tempo 139,000 miles. i was wondering how hard it is to replace the valve seals. and if i need any special tools. my spark plugs are fowl really bad. in like 2 wks they fowl up, oil residue all over them, i dont believe the rings are bad i think the seals are letting oil drip on the plugs since its angle . has anyone experience this ???