How do I safely refit a Montblanc nib and feed?

[brain]

Hello,

I have a No. 146 from the 1980s in front of me. I knocked out the nib and feed easily enough but getting them back in seems impossible! I have done this before and had no trouble after applying a little silicone grease. This time, nothing works. I am afraid of breaking a fin on the feed. Does anyone know of a good way of getting them back in?

Thanks!

[Karmachanic]

See if there's a groove to accommodate the nib in the section collar.

[brain]

Yes I have done the obvious stuff--the nib is aligned in the groove. I think I will just try the hairdryer again.