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  #1  
Old 01-07-2008, 02:13 PM
RICOCHET

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Wink " Polishing " ??



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hi all,

did a search and a lot of reading re; polishing the hammer & sear,

is there a link to a pic or two that would give me a hint as to where
i can smooth up the mating surfaces? dont have spares and dont
wanna mess them up.

thanks all,

rico....








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  #2  
Old 01-07-2008, 02:53 PM
Heggis

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I'll think you can guess which places to polish from this picture

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  #3  
Old 01-07-2008, 03:29 PM
RICOCHET

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kiitos, heggis,

i imagine the small piece on the left is the sear and the triangular piece on
the right is the hammer.

as you can see, haven't been this far into the innards yet, but when i do,
i may as well polish with some flitz and a dremel buffing wheel,

am also gonna D & T the trigger at the same time.

rico....








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  #4  
Old 01-07-2008, 04:26 PM
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Awesome picture Heggis

There's just not that much metal between semi and auto, is there?

All the best,
Rob
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  #5  
Old 01-07-2008, 04:28 PM
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Quote:
Originally Posted by Old Gaffer View Post
Awesome picture Heggis

There's just not that much metal between semi and auto, is there?

All the best,
Rob
nothing a little too much polishing wont fix....
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  #6  
Old 01-08-2008, 12:32 AM
RICOCHET

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yea, but, heggis

aint saying what he did to those two parts, lol,

yup, looks like i may just polish any rough parts,
at the way rimmer ammo keeps rising "daily", dont
want a full auto, plus they dont group well, haha,

rico....








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  #7  
Old 01-08-2008, 02:16 AM
Heggis

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Come on, there's lots of metal to take off

That is actually "before" picture so you can understand why you have to be a bit careful when polishing those surfaces. You CAN take little off from the back of the sear too but you have to know what you are doing... But then you have to put more pressure to the sear spring etc etc. So not you typical easy job. But after that, the triggerpull is really sweet

Yeah the part on the left is sear and the underside is the part you want to polish. Part on the right is hammer and the upper part is the one to polish. You can actually polish the hammer surface while it's in the gun. Take you slide off, let the hammer forward GENTLY and you can see the surface. But again be carefull not to change angles. There is a liitle play in the angles but not much... (don't ask )
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Old 01-13-2008, 02:02 PM
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Ok finally "had time" to take my gun apart... Took few pictures of my sear. You can see clearly the difference between modified and original. That original sear has about 1000 rounds through. Original is the right one.






Oh if only there were pure machined sears available and not this mim stuff...




Last edited by Heggis; 01-13-2008 at 02:08 PM.
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  #9  
Old 01-14-2008, 12:51 AM
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Very helpful Heggis - thanks a lot. It seems like every time you post I save another thread for future reference
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  #10  
Old 11-23-2009, 11:52 PM
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what kind of polishing material?

Quote:
Originally Posted by Heggis View Post
I'll think you can guess which places to polish from this picture

What kind of polishing do you recommend? Sandpaper, wet sandpaper (which grit?), a dremel tool?
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  #11  
Old 11-23-2009, 11:55 PM
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I would not use anything but stones to polish a sear.
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  #12  
Old 11-24-2009, 05:46 PM
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Which Stone?

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Originally Posted by Gizzy View Post
I would not use anything but stones to polish a sear.
What kind of stone? An Arkansas Stone, or and India Stone?

Steve
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  #13  
Old 11-24-2009, 06:34 PM
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Get yourself a set of these.....

http://www.brownells.com/.aspx/pid=9...t/INDIA_STONES
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  #14  
Old 11-24-2009, 06:46 PM
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Here is another set..... so either one is fine. Arkansas, or India!!!

http://www.brownells.com/.aspx/pid=9...RKANSAS_STONES
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  #15  
Old 01-14-2010, 10:26 PM
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Quote:
Originally Posted by Gizzy View Post
I would not use anything but stones to polish a sear.
I'm sure this is sound advise. Unfortunately I do not have a set of stones. It looks like I'd have to spend upwards of $100 to get the various sizes/shapes I may need. That's a lot of cash for tools I don't forsee using very much.

So.....searching for the ever infallible internet for advice I see that a lot of folks use a Dremel tool with a buffing wheel. I see references to the Dremel white compound, various jewlers' compound, and Flitz. I've got a Dremel and a buffing wheel, but would have to buy some compound. Is this just a bad road to go down altogether? If you think it's a sound technique, what compound would you reccomend?

My idea, since I have the stuff on hand, is to use very fine sandpaper (actually called Micro-mesh). I've got 3200, 3600, 4000, 6000, 8000, and 12000 grit. I've also got 600 and 800 standard wet-dry if there's a particularly nasty spot. I do have a large, flat Arkansas stone as well if the nasties are in a place it will work. If the Micro-mesh seems like a sound approach, what's the coarsest grit you would start with (finishing by following with progressively finer grits to 12000)?

Thanks for any thoughts or comments.
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