QUOTE (J. John Harvey @ Feb 3 2006, 12:42 AM)
Say I wanted to go to an antique store and buy a vintage fountain pen, Esterbrook for the purpose of this question.
My mother told me to watch out because the sacs can be bad. Apparently they are replaceable, from my briefe experience on this forum. But if I didn't want to have to replace the sac, and asked the employee/owner if the sac was in good, working condition, could I verify his/her answer by checking somehow?
Gatorade mentioned cracking... does that mean that the rubber or whatnot of the sac is brittle with age? How else can one tell if the sac isn't good?
(I'd like to buy an Esterbrook of some kind)
When you pull the filler lever on the body of the pen you will know immediatly what is wrong with the pen. If it is tight and springy then the sac is probably OK. If the lever is hard to pull or feels crackily then the sac needs to be replaced. If the lever is loose and flops arround then the sac and the pressure bar need to be replaced. A new sac runs $2.00 and there are some other supplies to buy like talc powder (pure talc, not the smelly bath kind) and sac cement. The cement is shelac and a small bottle goes a long way. The talc is probably good for over 100 pens but is pretty cheap as well. I just ordered all the supplies from tryphon and the total was arround $25 with shipping. That will give me enough supplies to resac quite a few pens. All I would need to order from there on out would be sacs. There were a few Esterbrooks at the store and you could feel the difference right away. This one was the smaller SJ and I got it for $10. There was one with what felt like a good sac that was $25 but I wanted to get a pen that needed to be worked on. It was actually very easy to disassemble, diagnose and clean. There are only 6 pieces to the entire pen and it was very easy to take appart. I highly reccomend doing it if only to get to know pens better.