Good question.
I have ripped the head of mine due to latte looking oil. I,m not going to chance NOT resealing liners. All this work and it leaks again... Yeah my names Billy Hunt not ........ Let me know how you go if you decide not to reseal...
What scares me more is having to re-align all the rings in the right places, that's going to take time and allot of patience. Everything will have to be ready to go at that stage, no holding back....