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Old Gun Tech Specific how-to's on fixing and tuning in those old guns

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Old 12-07-2013, 12:12 AM   #1 (permalink)
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Bushmaster Line SI

got one for free and just wanted to know whats necessary to check so i can get it back up and running good again.
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Old 12-07-2013, 09:17 AM   #2 (permalink)
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Take apart clean an lube internals, air up and check for leaks, put on eye protection and add paint. Should have velocity adjustment in bolt or hammer.

Enjoy.

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Old 12-07-2013, 10:35 AM   #3 (permalink)
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Take apart clean an lube internals, air up and check for leaks, put on eye protection and add paint. Should have velocity adjustment in bolt or hammer.

Enjoy.

RJ
thanks, so is there any specific parts i need to lube or just everything. also i cant seem to find the velocity adjustmant

also, any way you can help me figure out what i have is worth?
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Old 12-07-2013, 10:56 AM   #4 (permalink)
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You may or may not have a velocity adjustable bolt or hammer. Either one, if it is adjustable, will have something threaded into the center that you turn to adjust the main spring's compression. The bolt would probably take a hex key in the front. The hammer might have slots in the rear to take a flat head screw driver. I'm not describing it very well, but I can put up some photos when I get home.

Value depends on features and condition. The deluxe removable barrel version is most desirable. The grip frame makes a difference, too, with the aluminum 1911-style drawing a bit more then the molded plastic version. You might also have a NelSpot frame since some Bushmasters were sold as bolt-on upgrade kits.

I want to say that $80-130 is typical, but I don't see many in the BST so it's hard to say. Put up a photo. I got my deluxe 1911 frame in a package deal, and I'd attribute maybe $100 to the Bushmaster, in decent used-but-not-abused condition.
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Old 12-07-2013, 11:02 AM   #5 (permalink)
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Oh, and for lube, a light coat on the bolt and hammer should do it. I like to dab a little on the seals, too. Use paintball specific oil or air tool oil, not petroleum based oil.
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Old 12-07-2013, 11:27 AM   #6 (permalink)
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thanks axel.
yeah im still not able to find any velocity adjustment.
heres a picture of what i have, maybe it will help that and valuing.
also should i use paintball oil or lube(dow33). i have both.


Last edited by newman; 12-07-2013 at 11:38 AM.
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Old 12-07-2013, 05:54 PM   #7 (permalink)
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Looks to be a post 90 bushmaster fixed barrel, bolt looks to be a lapco.
Look down bolt should take an Allen to adjust.
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Old 12-07-2013, 08:58 PM   #8 (permalink)
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Looks to be removable barrel to me. Also looks like a pointman pump handle.
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Old 12-07-2013, 09:07 PM   #9 (permalink)
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So what do you guys think its worth?
Also lube or oil?
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Old 12-07-2013, 09:11 PM   #10 (permalink)
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Use oil. Nelsons really don't require much as there is really only one critical seal. A drop in the asa and fired through the gun every now and then is all that is required.
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