Slavia 630
- Thread starter black powder
- Start date
easyrider604
CGN Ultra frequent flyer
- Location
- Greater Vancouver, BC
Same here. I could use a PAL spring or two, hoping Woody sees this thread and replies.
I also saw a mfr in the U.S. Who may be able to help us out, they actually wind their own springs.
I also saw a mfr in the U.S. Who may be able to help us out, they actually wind their own springs.
Not my post- see link for poster.
The Slavia 630/631 has approximately 4.8" of space for a coil locked mainspring.
Divide the space by wire diameter (e.g. .117") to get maximum coils (e.g. 41.1).
Deduct a few coils to ensure safe cocking.
The factory spec Slavia 630/631 has a 37 coil .117 wire mainspring.
BUT: I have seen 35 coils of .120" wire which was supposedly original.
The factory spec velocity is 170 metres (558 ft) per second.
The Slavia 630/631 Canadian version usually has a 36 coil .110" wire mainspring.
There is usually a 5/16" nylon washer in the piston.
The Canadian spec velocity is 495 fps.
An expensive Diana 27 mainspring 39 coils .110 wire .509" ID will fit
An inexpensive D & L #2, 37 coil .119 wire .535" ID utility mainspring ($6.50) will fit.
This could duplicate factory spec power output.
Techpan Seal Wall Heat Shrink on the .480" OD guide could reduce spring twang.
I would put a metal top hat with a 3/16' shoulder in this gun.
NOTE: The Slavia 630/631 has a weak piston rod connection to the piston head.
The rod can be easily bent off line causing sear engagment problems.
Overspringing a 630/631 is not recommended.
A mainspring wire diameter thicker than .120" is probably overspringing.
http://www.airgunforum.ca/forums/topic25958.html
The Slavia 630/631 has approximately 4.8" of space for a coil locked mainspring.
Divide the space by wire diameter (e.g. .117") to get maximum coils (e.g. 41.1).
Deduct a few coils to ensure safe cocking.
The factory spec Slavia 630/631 has a 37 coil .117 wire mainspring.
BUT: I have seen 35 coils of .120" wire which was supposedly original.
The factory spec velocity is 170 metres (558 ft) per second.
The Slavia 630/631 Canadian version usually has a 36 coil .110" wire mainspring.
There is usually a 5/16" nylon washer in the piston.
The Canadian spec velocity is 495 fps.
An expensive Diana 27 mainspring 39 coils .110 wire .509" ID will fit
An inexpensive D & L #2, 37 coil .119 wire .535" ID utility mainspring ($6.50) will fit.
This could duplicate factory spec power output.
Techpan Seal Wall Heat Shrink on the .480" OD guide could reduce spring twang.
I would put a metal top hat with a 3/16' shoulder in this gun.
NOTE: The Slavia 630/631 has a weak piston rod connection to the piston head.
The rod can be easily bent off line causing sear engagment problems.
Overspringing a 630/631 is not recommended.
A mainspring wire diameter thicker than .120" is probably overspringing.
http://www.airgunforum.ca/forums/topic25958.html
I am in agreement. These are fine, accurate airguns, and trying to overclock them would bring more trouble than advantage.
I had a 630 that was accurate enough to hit a little green, silkworm type, caterpillar, off hand open sights.
It was hanging under a tree about 20yds away,( I may have hit it's silk thread).
I have a 620 Slavia . it still has the origional spring on it . can I replace it with a diffrent one to make it more powerful ?? without wrecking it . you guys are going to hate me for this one but I also have a Slavia 177 pellet pistol . both items were my fathers. he used to sell them among with other stuff back in the 70 ties. when I get a new computer I will post photos.
black powder
CGN Regular
- Location
- Saint Hippolyte
start by tacking it apart give it a good cleaning ..check to see the condition of the piston seal [leather or nylon ] and replace if it is torn or cracked..polish the piston rod and cylinder ..also check the O ring on the breech ...i would keep the original spring as is ..
Stumbled on this thread.... I can get parts for my old slavia!?!?!..... be right back........... back...lol, Yup its a slavia 630 model 77.... point me in the right direction...Woody-to, Im gonna msg you for a spring if you still have some??? And how about any other seals, bits I might need. (it does seem to work ok still) Where would I find them? excuse my ignorance, Ive never even tried pulling it apart before. Ive had this old thing hiding in closets since the 80's, my first pellet rifle, one year before my gramps gave me a .22.... I would LOVE to resurrect this ol' girl!
black powder
CGN Regular
- Location
- Saint Hippolyte
Thanks for the link!
Wish I'd poked my head into this thread sooner. I've been thinking about getting a 630 for a while, mostly for plucking barn pigeons from their roost. Checked D&L, S&A~anybody have these guns in stock? Ok with used (standard velocity of PAL rated/tuned)
That is an awesome deal at that price...suggest anyone interested in a quality European made airgun grab one.
CZ/Slavia quality is awesome.
The newer Slavia 630's have narrower scope rails than the old ones, which means being able to use any .22 or airgun rings easily to mount optics. A huge improvement over the near impossible to scope older ones. Here's hoping the ones Gagnon is selling have the narrower rail spacing.
I've seen it written that the newer guns come almost dry. Seems it might be best to do a lube with the correct high moly grease.
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