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Omas 361 Disassembly (Gold Plated Model)

arkiemark

By arkiemark
in Italy - Europe

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arkiemark

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Picked up this late model OMAS 361 with reversible nib in beautiful condition. The only problem is that the piston just doesn't seem to want to suck up any ink. Anyone know how to remove the piston? Tried google and old posts but the only examples of disassembled models are the black celluloid/resin bodies with a visible pin hole at the blind cap. This gold plated model doesn't seem to have that pin hole at the piston knob so no luck in getting that thing off. Suggestions welcome on how to disassemble or even people/places that could diagnose and maybe fix?

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esteroids Rare

esteroids

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I don't have a 361, but I'll assume it's similar to other models. On my models without the pinned filler knob the piston comes out the section end. With some heat the section will unscrew from the barrel. With the section off it's a simple matter to unscrew the filler knob all the way. You may have to push out the piston from the back end the final little bit. A non-scratchy something against the piston spindle end will do it.

 

I think someone showed this procedure with an Ogiva demonstrator.

 

Assembly is straightforward. You can adjust the piston for maximum capacity (while making sure the filler knob screws down all the way). You'll probably want some non-adhesive sealant on the section threads.

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arkiemark Dipped Only

arkiemark

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Thank you for the suggestion! I will give this a try right now. Fingers crossed!

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  • 2 years later...
fabri00 Vintage

fabri00

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Maybe the piston screw use the same system of the more recent piston filled omas where the knob is one piece solid with the screw, and there is no pin to separate it.

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jhsd1124013561 Rare

jhsd1124013561

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Maybe the piston screw use the same system of the more recent piston filled omas where the knob is one piece solid with the screw, and there is no pin to separate it.

 

Or the metal part blind cap was glued on, there is a plastic blind cap with pin inside?

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