>>10971767The needles have markings IIRC. Either a ring or somethin. The nozzle goes by the diameter of the opening. Those must match. If the needle peeks out too long it is mismatched or the nozzle has widened. In that case you need a new nozzle. Be careful, the brass nozzles are soft and easy to break. Also check with a magnifying glass if the tip of the nozzle is cracked.