David. I recalibrated the valves a few months ago. Afted the calibration, I noticed that the cold start vecame smoother than before. However, I've never check the engine compression.
The light for the glow plug does not always comes on when I start the car. Therefore, I velieve that the problem may be that the diesel is not getting warm enogh to start. Also, the car starts up with no problem if I plug the electric heater at night.