Misfire in a cylinder

[Helmito]

So I toook my car for a valve adjustment, the mechanic told me that he felt that there is a misfire in one of the cyliders that I have to take it to a test. Can you guys tell me where could I take or how could I test it so that I now what is causing it?, I change the sparkwires and also the rotor and rotor cap. the misfire is still there. Help me guys

[Losiracer2]

check to see if there is any oil in the spark plug chambers. So remove each spark plug wire and if its covered in oil, then its most likely your rocker arm O-rings that are leaking.

[Helmito]

I replaced all the spark wires, rotor , rotor cap, the oring in the distributor, I still feel that misfire. I m 100 percent sure that is not spark plug related. What else could it be? the distributor itself?

[Losiracer2]

I replaced all the spark wires, rotor , rotor cap, the oring in the distributor, I still feel that misfire. I m 100 percent sure that is not spark plug related. What else could it be? the distributor itself?

I'm not talking about the distributor O ring, there are O rings underneath the Rocker Arm Assembly that, over time, get brittle and crack, thus leaking oil into your spark plug chambers. This causes the spark plugs to not ignite, causing that misfiring. I mean you yourself said it feels like a misfire. Just pull them out and check if there's any oil drenching the plugs.

[JDMchristian991]

sounds like plugs...