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Gew 98 Unit Disk Removal - Question/Help

PatickD

PatickD

Member
Hi guys,

Have a DMW 1916 Gew 98, that has a unit disk that is likely flipped. Since the proof is on the reverse/non visible.

I’ve been trying to flip it back. Screw came out without a problem. I’ve carefully scraped the wood around the disk. I’ve tried getting it out with brass punches, trying to avoid damaging anything. The punches flex. Disk is on there darn tight.

Was thinking about putting an ice pack on the area to shrink the wood a little?

Any other ideas?

Thanks for any thoughts,
-D
 

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I've had success when flipping early Lee-Enfield disks by doing the following.......... First, I'd take a course thread screw that would fit the hole where the threads would actually grab the inside diameter of the hole. Then I'd load the hole up with gun oil or penatrating oil. I'd let the oil set for a few hours, then carefully turned the screw to place some pressure on the disk. Again after a waiting period, I placed oil in the hole and some around the disk edges, but wiped the stock so as to not darken the wood. It more-or-less becomes a waiting game by slowly turning the screw a little at a time. Putting a little more pressure on the disk, more oil and making sure it slowly lifts evenly so the wood around the disk doesn't chip. Throughout the process, I would take the pressure off the screw and lightly tap the disk with a 3/4" dowl to help loosen it from old grease or dirt beneath it. Of course, the original screw hole may be made larger, but you can always redrill the hole and add a small piece of dowl. I hope your efforts are successful should you try this method. Good luck with your project, TED
 
I agree with Mike.... It'll be tough to get out, odds are low it's actually marked that late (and was turned over as well) I understand there's bigger profit potential in a unit marked gun, but just resist the call on this one. Too nice to maul up.
 
Thanks for the thoughts guys.

I was reading through other forums on Gunboards. Other people have the same year/manufacturer combo. That had a flipped disk (proof on the underside). They ended up being unit marked. That was enough for me to attempt.

Haven’t done any irreversible damage. The disk area that now looks “worn/new”, is simply displaced grease and grime with light brass marks.

It is flipped though, right? Since there is no external proof. Any speculation why?

-D
 
chrisftk said:
I agree with Mike.... It'll be tough to get out, odds are low it's actually marked that late (and was turned over as well) I understand there's bigger profit potential in a unit marked gun, but just resist the call on this one. Too nice to maul up.
Click to expand...

Thanks for the honest thoughts Chris. It only took one reading on another forum. That the possibility it may be marked. That was all I needed, to go at it.
 
ersatz said:
I've had success when flipping early Lee-Enfield disks by doing the following.......... First, I'd take a course thread screw that would fit the hole where the threads would actually grab the inside diameter of the hole. Then I'd load the hole up with gun oil or penatrating oil. I'd let the oil set for a few hours, then carefully turned the screw to place some pressure on the disk. Again after a waiting period, I placed oil in the hole and some around the disk edges, but wiped the stock so as to not darken the wood. It more-or-less becomes a waiting game by slowly turning the screw a little at a time. Putting a little more pressure on the disk, more oil and making sure it slowly lifts evenly so the wood around the disk doesn't chip. Throughout the process, I would take the pressure off the screw and lightly tap the disk with a 3/4" dowl to help loosen it from old grease or dirt beneath it. Of course, the original screw hole may be made larger, but you can always redrill the hole and add a small piece of dowl. I hope your efforts are successful should you try this method. Good luck with your project, TED
Click to expand...

Definitely good advice, thanks.
 
I checked a few other DWMs in the reference. Acceptance on the disk seems to drop off in 1916. I’d say there’s a good chance it was never flipped and just lacks acceptance.
 
PrayingMantis said:
I checked a few other DWMs in the reference. Acceptance on the disk seems to drop off in 1916. I’d say there’s a good chance it was never flipped and just lacks acceptance.
Click to expand...
I was thinking the same thing. The last year I recall DWM universally accepting unit marking disks was 1915. I have flipped the disks in my 1916 and 1917 DWMs, neither bore a unit or acceptance. My 1916 is an ‘m’ block which was probably made in the first third of the year, so this seems to be a pretty early adoption if there’s consistency of application.
 
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