IIRC on the LA's, the rear external weight is on the TC. So you need to look. As with a neutral balance damper, a neutral balance TC will usually have a small weight somewhere for balance; the external balance weight for the TC is larger. Take pix.....
And, good on the damper needing to be pulled with a puller. Means the crank snout has not been messed up with a loose damper and damaged crank key.
These engines' cast iron crank is lighter than a forged steel crank, and is too light to be able to put in enough weight on the counterweights alone to internally balance it. So the external balance method had to be used.