Can I refill Cross porous point or felt tip refill with fountain pen ink?

[D. Thomas]

I am planning to buy a Cross century 2 rollerball pen. I am wondering if we can take out the black lid at the upper end of refill so that we can use a syringe to put fountain pen ink in the sponge inside refill and reuse refill? Had anyone opened the black lid at the end of refill? Please help me out.

Edited October 16, 2021 by D. Thomas
Grammar

[Ueno808]

Yes!  I loaded mine with Pelikan 4001 brilliant black. Works great. Once filled I let it sit a day to allow full absorption of the ink by the sponge. Good luck!  Wayne

[adamselene]

Any tricky aspects of doing this, like for removing or replacing the back plug?

 

Cheers.

 

 

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[Ueno808]

Removing the back plug is necessary.  It's a tight fit and a bit tricky to remove without destroying it. I use needle nose pliers and try to be gentle. Once removed, I carefully use a syring to slowly apply ink and let it absorb. Be careful not to overfill.  Replace plug and let sit overnight to allow ink to completely absorb. When done, writes great!