like most idle related problems posted here, my 82 300 TD idles rough when the car is on running temp. when its its cold it idles not nearly as rough, it had a lot of smoke too, so i decided to have all the injectors (nozzle tips) replaced, the valves were adjusted and all the fuel filters replaced but i still get the rough/vibration when its idling. although the smoke has been gratly reduced and the car runs great, i did notice that the blow by gasses in the breatherand dipstick is quite not normal, could this be a compression related problem?