[Mike the mechanic]

Hi folks, one of my clients cars is a 1980 Sc in which I have installed a 1996 3.6. The client called me up and told me that all of a sudden, the car started to run rough and smoke both whitish blue and black smoke. I told him to immediatly stop the engine and wait for me to go there. I got there about 15 minutes later and when I started the car, it ran normally, and didn't smoke at all. I left it idling for about 5 minutes and it was ok, so I drove it back to my shop. It drove well until i got there, when it started to miss at idle and low rpm, it was running on 5 cylinders at low rpm but above 3000rpm, it ran fine, but smokes a hell of a lot. It smelled very rich and oily, so I figure the number 2 cylinder was just pumping oil and fuel. I checked the plugs, fouled but otherwise fine. I replaced them but still, cylinder number 2 didn't work. The engine is not making any knocking or ticking sounds. After about 5 minutes at idle, the smoke stopped and the engine settled perfectly. The number 2 cylinder started working again.

What can this be that it pumps oil intermitently? Very strange. Maybe the injector is sticking open and flodding the cylinder, causing oil to pass between the rings and cylinder???