Author Topic: 59 Yugo SKS problem  (Read 131 times)

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Offline BillD93

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59 Yugo SKS problem
« on: January 11, 2021, 12:24:31 AM »
I've had my Yugo for 13 years now. It's only had about 150 rounds put through it. Problem is, the firing pin either dimples the primer or doesn't at all. I added a Murray's firing pin thinking that would help. Nothing. Dropped a Russian block into it, fired every time. Anyone have any ideas as to what the problem might be?

Offline running-man

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Re: 59 Yugo SKS problem
« Reply #1 on: January 11, 2021, 12:45:59 AM »
Sounds like either a clearance issue caused by a burr, something out of tolerance, or perhaps some debris in the FP channel is causing intermittent light strikes.  When you installed the Murray FP, did the bolt actually get inspected and cleaned (ie cleaned with something like a pipe cleaner?). Thats what Id start looking first if multiple pins produce the same results.
      

Offline BillD93

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Re: 59 Yugo SKS problem
« Reply #2 on: January 11, 2021, 04:27:07 PM »
I actually sent the bolt and carrier to Murray's to have it deburred.  Just got it back a week ago, dropped it in and.....not even a dimple.

Online Larry D.

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Re: 59 Yugo SKS problem
« Reply #3 on: January 12, 2021, 12:53:42 PM »
Is the bolt going fully into battery?
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Online Greasemonkey

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Re: 59 Yugo SKS problem
« Reply #4 on: January 12, 2021, 12:59:27 PM »
Better yet, does the bolt match the rest of the rifle?
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Leave the gun take the cannoli.

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Offline BillD93

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Re: 59 Yugo SKS problem
« Reply #5 on: January 12, 2021, 06:45:39 PM »
The numbers on the bolt and the rifle don't match. That could explain it.

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Re: 59 Yugo SKS problem
« Reply #6 on: January 13, 2021, 03:29:29 AM »
Sounds like a possible headspace problem, but.... when you chamber a round, do you A: pull the cocking handle and ride it home with the carrier/bolt assy under your control or B: pull the cocking handle and just let it slam shut under it's own spring force.
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Leave the gun take the cannoli.

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Offline Justin Hell

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Re: 59 Yugo SKS problem
« Reply #7 on: January 14, 2021, 02:32:34 PM »
It sounds like it could be a new bolt or one not trimmed for headspace enough to fully go into battery.  You may get a bit of a click, but the hammer doesn't fully fall. By swapping out a Russian bolt you eliminated pretty much everything else considering it worked.

I have a new bolt that I haven't fit yet...and it does precisely what you are saying, aside from the occasional dimpling, mine has never been fit though.  Matter o' fact...I am gonna remedy that right now while I am thinking about it.  If yours is occasionally dimpling, it's probably pretty close to being correct....but the safety measures within the trigger group are preventing firing, and singing off your eyebrows. :)

Offline BillD93

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Re: 59 Yugo SKS problem
« Reply #8 on: January 20, 2021, 12:23:50 AM »
Look's like I'm sending back to Murray's for.another job then. Thank you guys! I'll keep you both posted on how it goes.