sp101 22lr issues

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silverback

Blackhawk
Joined
Aug 9, 2012
Messages
591
Location
el paso texas
I have two of these one mine and one my girlfriends. the most recent one purchased has a resistance while pulling the trigger that for the lack of better terms "heavy or high friction".

Initially I thought polishing the internals would help. No where near the results of the other sp101. Next I figured surely the shims would be the ticket. Nope!!! it did bring to light what I think may be the issue.

once I installed the shims and the "gun noise" that I felt in hand while pulling the trigger was eliminated. I realized that it was emanating from the cylinder area.

I stripped the gun down rechecked trigger shims and contact points everything good to go. trigger moved smoothly.

I did notice that once the shim were in the trigger and thing were centered that the pawl was rubbing the trigger housing a bit more than usual. I didn't think much of it.

I check hammer and hammer dog shims. No!!! parts moved freely no resistance.

I am going to strip trigger down again. polish the pawl end where it sits next to frame and the frame itself and see if that has been the culprit all along. I think I will do the same with transfer bar as well
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well took some time with a crocus cloth. it was a combination of things but the main culprit was the fit between the cylinder latch and the trigger plunger. I re polished the ends of the pawl and transfer bar where they may come in contact with the frame. very little improvement. Next took off any possible remaining burs from the hammer strut where it makes contact with the trigger and gave it a high polish. Better but did not address under lying issue. then I sat there working the trigger assembly and realized it was the cylinder latch and trigger plunger. I gave them both a super polish, as best as one can do, by hand and crocus cloth. This gave me the ability to get it all the angles of the trigger plunger.

sweet much better. I may redo it after some more range time but that was the main issue. the trigger plunger was rough and causing very abrasive interaction with cylinder latch.

dam I really like these guns. very easy to work on and figure out their tissues.
 
They are a mass produced machine after all and not a custom shop piece. I am amazed at how good they are right out of the box. I have 3 101`s and they are just fine.
 
yep great little weapon. tons of fun. I just re-polished the internals with dremmel (detail) and it is just as sweet as the other one.
 
Yeah but...you know the mantra...no pics, no credit....show us some pics of the work...I'd like to see 'em. And how is the accuracy from the finished piece? Rod
 

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