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Leaky Parker 51


danielfalgerho
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I'm stumper by a Parker 51 Aerometric that drops gobs of ink into the cap or on the page. It had a broken collector, replaced that, gave a new ink sac, ran a thin steel wire through the breather tube and blew through it, put everything back together but the problem persists. Saying I'm stumped would be an understatement. Any advice would be much appreciated.

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If the pen is leaking like that, you have a puncture or a leak somewhere.

 

Check or replace the sac again, make sure that the sac nipple is clean, and use shellac. (you are using one of David Nishimura's PVC 51 sacs, aren't you?) Let it set for a few hours if not over night. That's not usually needed, but may be warranted in this case. Check the sac nipple and thread bushing to make sure that there are no cracks. Use a loupe if you have to, so that you can see a fine crack. Check the hood for cracks. seal the threads of the section with shellac or thread sealant.

 

Make sure that the bar in the sac guard hasn't punctured the new sac. I've seen that happen a couple of times. The end of the feed should be turned up a bit so that there is firm contact with the underside of the nib.

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Listen to Ron. He just gave you the complete list of items to check off.

i had a ‘51 that leaked. New sac everything clean and good. I tore it down again. I found that the sac had a pin hole in it. Put in a new sac and all is well. Also, Hoods can crack and it can be very difficult to see the crack. Take your time go slow. If you get frustrated, put it down for a night or two.

I just shattered the collector of a 1949. Went to pieces in my hand and now the rest of it is stuck in the section. I’ve put it down for a few days. Working on some Montblanc to clear my mind before i go back.

good luck.

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Thank you much Ron and Old Salt. Time to check and recheck. I was unsure of these ink sacs as one showed variations in thickness so they probably were didn't come from David Nishimura. Back to the drawing board. I will report. And forgive the typo in my query.

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David's look just like the original, with internal ribs and all. They're also the proper length for a standard size aerometric pen.

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  • 2 weeks later...

Another lesson learned: the groove in the grip that accommodates the O-ring was gummed up with something that may have been rubber cement. That must have been the culprit.

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Glad you found it!

 

Another "51" back in service! :)

Just give me the Parker 51s and nobody needs to get hurt.

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Another lesson learned: the groove in the grip that accommodates the O-ring was gummed up with something that may have been rubber cement. That must have been the culprit.

Good thing it was found! Hopefully the pen serves you well now

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  • 1 month later...

Listen to Ron. He just gave you the complete list of items to check off.

i had a ‘51 that leaked. New sac everything clean and good. I tore it down again. I found that the sac had a pin hole in it. Put in a new sac and all is well. Also, Hoods can crack and it can be very difficult to see the crack. Take your time go slow. If you get frustrated, put it down for a night or two.

I just shattered the collector of a 1949. Went to pieces in my hand and now the rest of it is stuck in the section. I’ve put it down for a few days. Working on some Montblanc to clear my mind before i go back.

good luck.

 

There is a brass tube that can be used to force the broken collector out from the sac side of the connector. I don't have it in front of me right now to measure the diameter.

 

Glenn

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