When removing the spark plugs,i noticed the port was filled with oil, obviously if i take the plug out the oil will drop into the engine, is this bad,or will it burn off, is it due to overspill or a problem elsewhere.Thanks
Your valve cover is leaking an oil will run in to sparkplug holes use compressed air to blow it out,and a rag to soak it up your car can catch fire it happened to a friend of mine this past winter she pulled into my place an asked me to look at it when i opened the hood the engine was on fire!! and replace the valve cover gasket, check to see if ti is bolted down tight..
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The fault is due to the valve cover gasket passing oil into the spark plug wells. There are circular seals under the valve cover around each spark plug well opening. These spark plug well seals come with the valve cover gasket set.
Okay, lets start with the oil you found on spark plugs when you were replacing them. this oil is coming from the valve cover tube hole area, notice the plugs go into the holes in the valve cover, there is a gasket the goes around the top of the tubes and when it leaks it goes into spark plug hole, the valve cover needs replacing . this will cause rough idle and running problems, after replacing valve cover gasket the holes must be cleaned, using crab cleaner, spray into holes and use air to blow out . this may need to be done a few times to get oil out . after oil is removed . then remove spark plugs and wipe them clean. The next step is to find the air (vacuum leak) , you said you hear it around intake tube. check for cracks or broken vacuum line. this leak will cause idle problems and driving problems,
common for the well around the plugs to fill with oil.ensure the gasket fot the cam cover is correctly tightened using the correct sealing compound/gasket(both).if its just a small amount leave it alone.it wont hurt.
Do you notice a puddle under the car? Or smoking when you shut it off? The rocker cover gaskets are the culprit. If you have the spark plugs in a well inside the rocker cover, the will fill up with oil and also leak out the back. You can replace the gaskets, a fairly easy job, you have to pull everything off the top of the engine to get the covers off. And they give you the new seals for the spark plug well with the gasket kit. They only go about 10 years, I replaced mine and they are starting to leak again. Hope this helps.
To change the oil on the supercharger that Buick Riviera is equipped with first remove the plastic cover directly over the supercharger. Next, stand on the passenger side of the vehicle and face the engine. You will be looking at the front of the supercharger. The oil fill port is located on the front portion of the supercharger along the right hand side as viewed from your position. It is a large hex plug. This is both the drain port and fill port. There are several ways to drain the oil. My personal favorite is a piece of rubber tubing and a large syringe. I have found this to be the quickest way. Once you have drained it use a funnel small enough to fit the fill port and take your time filling it. Fill it to just below the threads at the bottom of the oil port. Be careful not to overfill it. After you have replaced the oil plug I like to disconnect the coil wire. This allows the engine to turn over but not start up. It helps to circulate the new oil through out the supercharger that were drained dry. This is not required however. It is my own personal preference. From this point it's ready to go.
If oil was just around the plugs you have a oil leak somewhere . If the tip of the plug that goes in the motor is covered with oil it is either worn valve seals or piston rings. If it leaking oil look at the valve covers this is on of the most likely place for oil leaks.
Sounds like stuck lifters....check oil and make sure that it is filled to full and make sure the color is good (not dark/black)....unfortunately lifters are pretty expensive new...but before you go replacing them know that this is pretty common...have a mechanic make sure though...as far as the oil in the spark plug ports.....that would be your valve cover gasket......easy fix.....50 bucks tops if you do it yourself.....which I highly recommend considering the ease of the job. Also check the spark plugs....chances are due to the oil you've had a couple misfires depending on bad your oil is leaking and they may be damaged....if so replace them