 |  | | | |  | |  |  | How to tune a SMK B2? |  | |  |  | |
 Posted: Mon Sep 28, 2009 9:48 am |
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| oscillate_wildly |
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| Joined: 28 Sep 2009 |
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Does anyone know how to tune a SMK B2? Or know of any step-by-step guides?
Any help on this would be greatly appreciated.
Thanks. |
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| Posted: Mon Sep 28, 2009 3:31 pm |
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| broommaster2000 |
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I don't think you wanna tune those. I mean, it's not really what you call well spend money as they're not that good. They're not really worth it because the base material is so cheap you're not likely to get something good out of it.
That being said, things like a spring guide, top hat, deburring of rough parts may make it a bit better. 
http://www.airshooter.co.uk/acatalog/B2.jpg
I owned two of these. The fun about them is you just grab em and trash em.  |
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| Posted: Mon Sep 28, 2009 8:14 pm |
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| kanyon |
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In the pic/link broom posted ..That gun is
better known as a B2-1.....Made by the
Shanghi air gun company.....
They are a great wee backyard plinker..
bird whacker....
They also come as a..sealion & stirling....
Pete |
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| Posted: Mon Sep 28, 2009 9:17 pm |
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| AirGunEric |
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The B2's are "tuner trainers"- as in rip it apart, tune it up as best can be expected and if your break it- not a big loss, relatively speaking.
You want to disassemble it (I don't know of any guides specific to the B2 for this- but all springers are very similar in this respect), polish all the rough edges on moving parts (trigger, piston, guide) and clean all the Chinese goo-lube (more like paste than lube) off/out and lube it properly with silicone oil (chamber and seal) and grease (behind piston- i.e. spring and rear. You could also install a couple of 1/4" washers in the piston atop the spring to allow for better spring rotation (to help avoid spring twist when cocking). |
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| Posted: Mon Sep 28, 2009 11:20 pm |
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| Slavia |
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| Quote: |
| The B2's are "tuner trainers" |
I can think of three reasons for tuning it - 1. To gain experience, as Eric said, 2. To correct a defect, or 3. Because you can't leave anything alone, and you want to see to what absurd lengths it can be taken.
If you're a #3 person (as I am), realize that anything beyond what Eric described probably won't be rewarded with better performance.
Oh, and add polishing the muzzle crown to the list of simple chores that might pay off. |
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