Richard, yours may be well after my time, but the Campagnolo braze on levers I remember had a flat alloy washer on first, then the lever with the concave side outwards, then the flat spring steel washer. and the chrome outer washer with the convex side inwards, the pressure of the screw would slightly deform the flat spring washer.
If there was any movement of the flatted washers on the boss then they would loosen. we used to have part no 604/1, a chrome screw with a small loop on it to act as a wing nut.
Just a thought, they could be on the wrong sides, with the concave part of the lever inwards.
Keith
If there was any movement of the flatted washers on the boss then they would loosen. we used to have part no 604/1, a chrome screw with a small loop on it to act as a wing nut.
Just a thought, they could be on the wrong sides, with the concave part of the lever inwards.
Keith