Helix rod for MB 146/149

Manufactured from black Delrin plastic, this rod has a circular cross section which has the merit of being a much stronger alternative to the injection moulded version which had a reduced oval cross section

It uses the same end design and is fully compatible with both the 146 and 149 pens.

Of course in order to complete a repair, a serviceable 'C' washer is a must. These are now available in packs of 5 on this site.

As with all pen repairs some knowledge of fitting spare parts is desirable.

Please follow the links below for a comprehensive description of this part from a renowned repairer of M.B pens. I think they are quite interesting.

http://www.fountainpennetwork.com/forum/index.php/topic/255063-modern-montblancs-weak-piston-lead-screw/

http://www.fountainpennetwork.com/forum/topic/276873-another-d-i-y-149-repair-pictorial/