I own a 1971 240z and this past winter I swapped out the trans that was in it (datsun b 210) with the original z trans. The PO told me the original had been overhauled and he never got around to putting it back in. To make a really long and agonizing story short, the z trans was no good and I ended up putting the b 210 back in. But while I had the trans out I decided to replace the clutch disc and the throw out bearing. Easy job. But now when I drive the car, I get a wicked burning smell like I'm smoking the clutch. My guess: old flywheel and new disc aren't happy together. My question: should i just ride out the rough honeymoon and eventually they will have a happy marriage, or do I need to do something more drastic??