Conway Stewart 76 cap disassembly - advice needed!

[PeterR-C]

I have a Conway Stewart 76 with a bent clip. Cap disasembly is proving difficult! I have the split-ended screwdriver, I can find the slots, but when I turn it, the cap stud turns as well. I just cannot get enough purchase on it to hold it still. I have put WD40 in, I have ultrasonically cleaed it, I have heated and cooled it, all to no avail.

 

Marshall and Oldfield's Pen Repair states "It may be necesary to superglue a wooden or plastic tube to the head of the button to obtain a grip on it". But if I do that, how do I remove the superglued item after that?

 

All help gratefully received.

[mizgeorge]

With superglue debonder. Which works very well. eg. this one

 

You could also try polymorph/coolmorph if you already have some.

[PeterR-C]

Mizgeorge you are a star, thank you so much.

[mizgeorge]

You're very welcome

 

I may need to pick your brains in the coming few weeks as we get ready for daughter to come up your way for University

[PeterR-C]

My pleasure. Feel free to look me up on the Durham University website and email me directly.

Peter

[PeterR-C]

Apologies Mizgeorge, of course you do not know my surname. I think there is a way of sending a personal communication via the FPN but I cannot see how to do that. If you know, please get in touch.

 

Peter

[RobHarding]

I have a somewhat related question, I am very new to the group and restoring vintage pens game. I got myself a CS 28 and it it in great condition apart from a very loose clip. I have read a lot about the method of using a ground flat screwdriver and so , unfortunately the pen I have seems to have a plastic insert in the cap that hides this screw and I have no idea how to get it out to access the screw which I presume is beneath it.

 

I'd appreciate any advice. Thanks upfront.

[eckiethump]

On 8/8/2021 at 2:51 AM, RobHarding said:

I have a somewhat related question, I am very new to the group and restoring vintage pens game. I got myself a CS 28 and it it in great condition apart from a very loose clip. I have read a lot about the method of using a ground flat screwdriver and so , unfortunately the pen I have seems to have a plastic insert in the cap that hides this screw and I have no idea how to get it out to access the screw which I presume is beneath it.

 

I'd appreciate any advice. Thanks upfront.

If you cannot see the screw in the barrel the jewel will unscrew from the cap top, they be extremely difficult to release, heat has to be very carefully applied. I have seen many beautiful herring bone and the like caps ruined with excessive heat, I can repair these ! As long as you are sure the cap is not casein, Unlikely in 27,28, 58, 60 or 100's but check! the ultrasonic can be your friend.

I use Balistol a a release agent for the jewel threads along with careful heat. The gripper I have, is from one of the "rubber balls" that is for removing wrist watch case backs. Some times, you do have to "bite the bullet", cut a slot in the jewel to unscrew and have a replacement.

eckiethump

[RobHarding]

Dear eckiethump

 

Thanks for your reply, and terribly sorry for the my late reply! I found somewhere that the tacky rubber on the sole of computer mouse pads works great as a grip and so pressing the jewel into that and doing a sharp turn releases the jewel and allowing it to unscrew cleanly, no heat required. Problem solved! Thanks again.

[eckiethump]

5 hours ago, RobHarding said:

Dear eckiethump

 

Thanks for your reply, and terribly sorry for the my late reply! I found somewhere that the tacky rubber on the sole of computer mouse pads works great as a grip and so pressing the jewel into that and doing a sharp turn releases the jewel and allowing it to unscrew cleanly, no heat required. Problem solved! Thanks again.

I love it when a plan has success, well done !

et