Wing Sung 601: Wanna Make A Repair Attempt

[Mech-for-i]

if it had a diaphragm, its the vacumatic version if it had a spring loaded piston ( like that of a piston filler but not the screw ), then its the piston pump version. for ease of identification Wing Sung put metal end jewel on the cap for vacumatic versions and plastic jewel for the piston pump version

Edited November 27, 2018 by Mech-for-i

[bass1193]

if it had a diaphragm, its the vacumatic version if it had a spring loaded piston ( like that of a piston filler but not the screw ), then its the piston pump version. for ease of identification Wing Sung put metal end jewel on the cap for vacumatic versions and plastic jewel for the piston pump version

Very smart of them to make it easy to tell at a glance!

[eharriett]

Ah. Got it. thanks. I have the vacuumatic then. Thought so. Wanted to be sure

[eharriett]

Finally got my replacement sac today. Not sure I will have time this weekend to attempt first installation, but I watched a couple of YouTube videos of a Parker 51 replacement and I think I get the basic concept. Did the plastic part on the plunger break or is it supposed to be in two parts? None of the videos I saw had the plastic separated like mine is (see closeup shot from prior post). It kind of looks like theres a hairline plastic piece that came off making it look like the plastic split which may be what caused my problem in the first place.

 

Excluding the inverted sac in the pic, does the rest of that piece look the way it is supposed to?

[Honeybadgers]

You're in uncharted territory. I'll remove the mechanism from my vacumatic 601 and take a picture for you when I get off duty tonight.

[eharriett]

You're in uncharted territory. I'll remove the mechanism from my vacumatic 601 and take a picture for you when I get off duty tonight.

Wanted to check in on this. I was going to make the attempt tomorrow afternoon. Want to know if the plastic part is broken or not before I try putting a good diaphragm on it. Thanks!

[Honeybadgers]

Sorry I never got around to it, I removed it and it inverted as I pulled it out to resemble yours - when I reassembled, it was impossible, so I had to fold the sac over itself. It'll make sense, you need to invert it from that cone so it's more compact, you'll see how it fits together once you get the sac on and attempt to install, the sac will attempt to invert itself anyways (but it wont' succeed, it's a pain in the ass to re-invert)

 

there should be no raised edge like in your picture (that little lip), the sac should fold cleanly over or it won't go back. So unroll that little rolled lip on the sac and invert the cone, so that the lip of the sac is just covering the second "step" on the plastic piece directly above it, but not going over the final raised lip (again if you do get it over that third step it just won't go back in the pen)

 

The rest of that plunger looks just fine.

Edited December 13, 2018 by Honeybadgers

[eharriett]

Got it. I will try to reassemble and report results

[alanlight]

Or use a pair of nylon-jawed plyers (a common tool for those who make jewelry, and <$10).

 

P.S. These come in handy for lots of fountain pen repairs.

 

Here it's one offer for this tool .

 

https://www.ebay.com/itm/2Pcs-Wing-Sung-601-Fountain-Pen-Vacumatic-End-Open-Tool-For-WingSung-601-601A/232997682972?hash=item363fbe7f1c:g:va8AAOSwCgVb4-po