I think I may have messed up the nib on my 140, the piston was getting a bit stiff, so decided to try some silicon grease Started to unscrew the nib a bit stiff but was coming off, as it unscrewed it got stiffer, eventually managed to get it out, but the nib/fed was a bit twisted and the plastic collar that holds it all together was split for about 3/4 of its length.
Greased the piston and straightened the nib/feed as best as I could without breaking the collar, applied a bit of silicon grease and screwed it back in the section, the nib/feed twisted a bit and the tines are now overlapping slightly after I write for a while and difficult to straighten because of the nib/feed problem. Nib is now a bit scratchy as the tines overlap every now and again.
I know the best way to try and fix is to take the nib out but am worried that the collar, which I think has the screw thread on it will break.
A couple of questions.
1) Will a nib from the M200/400 fit?
2) How easy is it to come by the collars and fit them to the nib/feed.
3) If the collar does split could it be 'stuck to the nib /feed and be reused?
4) If the collar isn't threaded and the thread is on the feed (unlikely, but I didn't think to look) could the nib/fed be screwed back in without the collar.
Moral here is leave vintage Pelikans alone, had a similar problem with a 400nn, but on that the collar stayed firmly in the section and just teh nib and feed came out, eventually managed to to get that back in, but flow can be a bit erratic, although turning the nib over and writing with the wrong side primes it quite well.
Any advice much appreciated.
Andy