NEMROD PNEUMATIC SPEARGUN (FUSIL)

[Tom Rowat]

ANYONE KNOW WHERE TO GET O RINGS AND SEALS FOR THIS GUN

 

[popgun pete]

Nemrod have been out of business for decades, their last guns being produced were the "Clipper" models, Basically you need to measure the "O" rings for size and try and find equivalent rings in stock sizes. The piston seals are usually special seals molded for the guns, so unless you can find new old stock then an alternative piston need to be found using "O" rings and possibly cone or cup seals if they will fit the required inner barrel diameter.
https://forums.deeperblue.com/threads/nemrod-mid-handle-classic-layout-pneumatic-spearguns.100417/

 

[Tom Rowat]

Ok then, inventing I will go. Thanks for the info. I doubt anyone has any seals left out there but I,ll look around anyway. Loved the gun for tight places.

 

[popgun pete]

Ok then, inventing I will go. Thanks for the info. I doubt anyone has any seals left out there but I,ll look around anyway. Loved the gun for tight places.

The reference that I indicated at the end of the post, did you read it?: The cup seals can be replaced by the ones from China according to markusfugit.
https://www.aliexpress.com/item/UN-...b58f-445d-9c37-7917268c44f3&priceBeautifyAB=0

You did not mention which model gun you are talking about. Nemrod made many pneumatic guns over many decades since the fifties.
https://forums.deeperblue.com/attachments/galeon-piston-jpg.42817/

 

[popgun pete]

Here is a diagram of the Nemrod piston and how they were assembled out of several sub-components using steel, aluminium (the spacers originally, later stainless steel) and ribbed rubber cups seals to stop the piston rocking in the bore. The rubber ribs provide six circumferential sliding points of contact, but only the rear rubber seal trailing lip flares with air pressure against the inner barrel wall, the front seal serves as a barrel wiper. Sometimes it is possible to extend piston life by transposing the rubber seals, as the front seal has an easier life, never being exposed to compressed air pressure.

 

[Tom Rowat]

Thank you for all you've done. Much appreciated.

 

[Fibonacci]

Just ordered 20 seals from AliExpress, thanks to markusfugit for the tip!
Maybe some split Teflon backup washers could be used behind the replacement shorter seals?
May need to be custom made... something like this:
Teflon backup washers

 

[popgun pete]

Just ordered 20 seals from AliExpress, thanks to markusfugit for the tip!
Maybe some split Teflon backup washers could be used behind the replacement shorter seals?
Something like this:
Teflon backup washers

They could certainly be used as spacers. Ideally you want two circumferential touching edges spaced apart by a few centimeters to stop the piston rocking in the bore during muzzle loading, as if the piston rocks then a puff of compressed air can be released with cup type seals at both ends of the piston. The main thing is you don't want air leaks along the metal piston's spine.

 

[Tom Rowat]

They could certainly be used as spacers. Ideally you want two circumferential touching edges spaced apart by a few centimeters to stop the piston rocking in the bore during muzzle loading, as if the piston rocks then a puff of compressed air can be released with cup type seals at both ends of the piston. The main thing is you don't want air leaks along the metal piston's spine.

 

[Tom Rowat]

Im gonna try stacking two thinner seals together on each end and see how that works. Takes a long time to get them though.

 

[Tom Rowat]

also thinking of putting 5200 silicone sealer on spine to prevent leaks

 

[popgun pete]

also thinking of putting 5200 silicone sealer on spine to prevent leaks

Remember that you may want to take it apart at some time and some silicone sealers have an iron grip on metal in some circumstances unless you have the piston spine slightly oiled, then the silicone will not stick to the bare metal. Someone gave me a gun to fix where RTV Silicone was used on the screw threads and short of destroying the metal that gun is glued up until Judgement Day, unless some exotic stuff at 80 bucks a small bottle is used on it which will trash all the anodizing on the gun, but is said to destroy the silicone.

 

[pontcho]

Nemrod have been out of business for decades, their last guns being produced were the "Clipper" models, Basically you need to measure the "O" rings for size and try and find equivalent rings in stock sizes. The piston seals are usually special seals molded for the guns, so unless you can find new old stock then an alternative piston need to be found using "O" rings and possibly cone or cup seals if they will fit the required inner barrel diameter.
https://forums.deeperblue.com/threads/nemrod-mid-handle-classic-layout-pneumatic-spearguns.100417/

Hi-How do I get parts/ O-rings/Piston, for the "Nemrod-Galeon-2"? Do you have the sketch of the back valve? (Where the pump pressing air) Since I am new on this forum and my English is not the best, can you email me to: pontcho <maxzur@hotmail.com>
Thanks

 

[popgun pete]

Here is the parts diagram for the "Galeon".

and a magnification of the rear end detail.

and the parts list.

 

[popgun pete]

As for finding parts I have no idea, but possibly raygun builders creating "Star Wars" replicas may have those parts which they removed to make their cosplay toy weapons.

 

[pontcho]

Many, many thanks yo you. Do you have their (Star Wars ) website address? You don't have spare parts for those "Galeon"!?
Thanks again.

 

[popgun pete]

Many, many thanks yo you. Do you have their (Star Wars ) website address? You don't have spare parts for those "Galeon"!?
Thanks again.

I don't have any addresses, but if you search on Star Wars rayguns you will find people who describe the conversions and you can then find out which parts they don't need. My guess is that anyone you ask will probably offer to buy your gun to make them a raygun as the stocks of "Galeon" guns have been severely depleted by guys duplicating the Star Wars props which were built on those handles by the special effects and costume departments.
https://www.google.com.au/search?q=star+wars+bespin+guard+blaster&tbm=isch&source=iu&ictx=1&fir=SDtmYAfUGWQx6M%3A%2CkZoWRRGvAsKVsM%2C_&vet=1&usg=AI4_-kQWCvdDZ7xyIJX3Lpe_7f9avn21Ww&sa=X&ved=2ahUKEwjmp_n_gKrhAhVReysKHfQrArgQ9QEwBHoECAkQDA#imgrc=SDtmYAfUGWQx6M:

At one time I remember when the movie had just come out that someone wanted to sell one of these rayguns for 2 grand!

 

[popgun pete]

Judging by these websites Nemrod should have switched to rayguns and using their old molding dies could be making a fortune selling them to Star Wars fans at a couple of hundred bucks each to maybe a thousand.
https://www.replicapropshop.com/collections/blaster?sort_by=created-ascending

https://www.washingtonpost.com/news...ar-wars/?noredirect=on&utm_term=.ba7ad731b05c

https://www.stormtrooper-costumes.c...VV7-lVBzmpdGSpREGMYKuklbFODsrP0xoCi94QAvD_BwE

http://starwars.ea.com/starwars/battlefront/features/blasters

And you thought spearoes were weapons crazy? Well we are nothing compared to people wanting to run around looking like some movie characters and willing to pay big money for their complete replica outfits. "May the Force be with You" (but make sure you bring plenty of money)!

 

[pontcho]

Here is the parts diagram for the "Galeon".
View attachment 53801
and a magnification of the rear end detail.
View attachment 53802
and the parts list.
View attachment 53803

Hi-When I dismantled the back 3774, I didn't pay attention to the arrangement of the parts, and the O-ring

Here is the parts diagram for the "Galeon".
View attachment 53801
and a magnification of the rear end detail.
View attachment 53802
and the parts list.
View attachment 53803

Hi-When I dismantled the back valve No 3774, maybe I didn't notice the arrangement of the parts, as well, O-ring No-95, maybe lost, so I looked
at your sketch, assembled the valve, and put small O-ring.
(Instead of No-95)
Now, when I press air with the pump, gun doesn't hold pressure, and when I leave the handle of pump piston, it lift up, as the pressure from the gun, push the handle/piston out, which mean that the valve doesn't close the air, from cming out (Comming to the pump again. What do you think is the problrm? Maybe I didn't assemble the valve properly, maybe O-ring is not the same, maynbe another problem?
Do you know the size of O-ring No-95?
Thanks again

Here is the parts diagram for the "Galeon".
View attachment 53801
and a magnification of the rear end detail.
View attachment 53802
and the parts list.
View attachment 53803

Hi-When I dismantled the back valve No 3774, maybe I didn't notice the arrangement of the parts, as well, O-ring No-95, maybe lost, so I looked
at your sketch, assembled the valve, and put small O-ring.
(Instead of No-95)
Now, when I press air with the pump, gun doesn't hold pressure, and when I leave the handle of pump piston, it lift up, as the pressure from the gun, push the handle/piston out, which mean that the valve doesn't close the air, from cming out (Comming to the pump again. What do you think is the problrm? Maybe I didn't assemble the valve properly, maybe O-ring is not the same, maynbe another problem?
Do you know the size of O-ring No-95?
Thanks again

 

[popgun pete]

The "O" ring is probably not the correct size. I remember the valve "O" ring on my Comando Silver series gun had a thick cross section that was not easily replaced. I don't have the sizes for any of those rings and possibly some were special sizes made for the company and for use only in those guns.

Those diagrams are the official ones from Nemrod and were supplied with each new gun, so they should be correct in their depiction of how the parts are assembled.