Spark Plugs !! ASAP

[alexrc]

Hey got a question the spark plugs of my 420a are getting residues of oil or fumes , these are brand new spark plugs and after a while the car starts failing or going in 3 pistons , if you clean the spark plugs will go good, I have a msd coil pack and msd cables . any ideas ?

 

[1999eclipsers]

It sounds like your ringings maybe bad/ oil is leaking in thru the head. Its just a first guess.

 

[alexrc]

piston ring ? or oil valve ? the oil seal on the head are new

 

[Slo2gen]

What do the plugs look like? You could have bad piston rings, valvestem seals, head gasket, and a number of other things. One thing for sure is that the MSD coil packs are known to fail and cause problems on the 420a platform. Whats your compression numbers across the board? should be around 180 if your stock, car is warm and throttle body at WOT.

 

[alexrc]

ok i have a new head gasket i installed yesterday , and new , oil seal , i can get you the compression numbers the spark plugs are just a little like with fumes of oil not to much and i installed the new coil yesterday as well

 

[nuclearr]

valve seals can cause the problem as well but if you have valve seal problems and/or ring problems it will smoke and clog up the cat after a while

 

[alexrc]

well the car is not smoking , even at high revs . thats why i dont know what else to check , becouse the valve seals are new

well the car is not smoking , even at high revs . thats why i dont know what else to check , becouse the valve seals are new

 

[Shadow98]

Try switching the wires around and see if it stays in the same cyclinder or moves.