Hello, we bought a new toy a few days ago; a V70 with engine damage. We also got a working engine. The new engine was once installed in an automatic. It’s not bad, the flywheel from the switch is sitting on the old engine. Can you change. On the occasion also crankshaft sealing ring, back bearing and clutch should be renewed. On the subject of coupling the pilot bearing came into play. And I have a question for that. I with this “knowledge” I measured the transmission shaft and measured the inner diameter of the pilot bearings of both motors. di old motor (switch) = 15 mm (the gearbox was installed on this) di new motor (automatic) = 21 mm da transmission shaft = 20.6 (diameter distortion possible by gearing) Even with the possible dimensional distortion by gearing, the transmission shaft can never be in the pilot bearing of the S I have taken more measurements and made a sketch to support this. This underscores the suspicion that the transmission shaft is not being guided. Where is my thought error? Is there something wrong with the old engine (but we bought it this way)? What should the pilot bearing do there? I do not see any reason to install a bearing there at the moment. What is the purpose of the pilot bearing if e is not supposed to be running the transmission shaft? To your answers I am really tense. With kind greeting kaninchen2