No, just the smoke that was released when the wire harness shorted out. Remember, Joe Lucas patented the short circuit.
If you replace the smoke in the wire harness, it will be good as new.
The secret to maintaining electronics is not to let the smoke out. Once the smoke escapes, it’s shot. It was good to Lucas to supply replacement smoke. Their equipments were noted for leaking more than an average amount of smoke. Any garage specializing in British equipment should stock barrels, not milliletres (sic).