Just completed a 20R to 22R swap on my 77. Swapped the w50 from the 20R (originally was on this engine) back onto the 22R. I've driven the 78 this engine came out of. It was a little noisy, but like I figured the timing chain guide was destroyed. Before the swap I put in new guides, new seals, etc. Engine was running a little rough at first. New plugs, and tuning the carb made a huge difference. Decided to also do a valve adjustment and that helped even more. I had a weird vibration on the first few tests drives that I figured was due to the rough idle, etc. Now that the engine is running much better, the vibration is very noticeable and it feels like it's coming from the clutch/flywheel/etc area. I should have purchased a new clutch assembly, but after spending a descent amount freshening up the engine I figured I could save a few bucks and reuse the one that came on the 22R. It appeared to be in great shape so why not? Maybe this is the issue. The vibration is noticeable at idle with the clutch in or out. No difference. I'm not sure if video will pick it up but there is an audible noise associated with it at idle Smooths out at higher rpm, but it still noticeable When the w50 was on the 20R I didnt have any issues with this kind of vibration I'm not as mechanically inclined as many of you on this forum so I'm assuming I may have reinstalled something incorrectly. Is it possible to reinstall the flywheel/clutch/pressure plate in a way that would cause it to be out of balance?