Originally Posted by
bennie222
Can you suggest a few chains that I can look at that are 'wider'. Thanks.
You didn't say how many speeds on the cassette but judging from the 1983 date I guess it's a 6 speed. So any 5 or 6 speed chain would work. The beauty is that they're cheaper than newer chains and simpler to work with because you cut and splice them by pushing a pin back and forth.
Here's one possibility but there are plenty of other choices. Note that the pins stick out which will push the chain over so it drops onto the middle ring more readily.
BTW- as the other poster pointed, you might have warped a chainring, but there's no need to take anything apart to check. Simply turn the crank and watch for horizontal movement in the FD cage.