Type 81 SR Serious Quality Concern

I also did the same fix bfiles suggested. I pre drilled and used a 1 inch zinc screw with a slightly smaller head then what he used.

It doesn’t seem to have as much contact with the receiver as bfiles screw does, so I may disassemble and use an epoxy around the screw, or just use a larger screw.

I’m not to worried about warrantee, as the part I drilled on the stock was completely unsupported; it wasn’t held to the receiver at all.

If the stock breaks it’ll be at the two pins, and that’ll mean our fix didn’t work, but it certainly won’t have been caused by our preemptive measures.

TI could say they won’t warrantee it, but I’d bet they will. Either way, I think this is a design flaw and that the only fix from TI will be to keep sending replacement stock, after replacement stock.

I for one think it’s best to try something.
 
JeffMan said:
I also did the same fix bfiles suggested. I pre drilled and used a 1 inch zinc screw with a slightly smaller head then what he used.

It doesn’t seem to have as much contact with the receiver as bfiles screw does, so I may disassemble and use an epoxy around the screw, or just use a larger screw.

I’m not to worried about warrantee, as the part I drilled on the stock was completely unsupported; it wasn’t held to the receiver at all.

If the stock breaks it’ll be at the two pins, and that’ll mean our fix didn’t work, but it certainly won’t have been caused by our preemptive measures.

TI could say they won’t warrantee it, but I’d bet they will. Either way, I think this is a design flaw and that the only fix from TI will be to keep sending replacement stock, after replacement stock.

I for one think it’s best to try something.
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The screw contacting the reciveer or not should still give more stability in the stock itself atleast.
Has to do better then what came from the factory none the less
 
Any reported cases will have their rifles replaced free of charge :) Considering the number of rifles shipped, this is a very rare issue. These were extensively tested during development phase without issue, however like anything man-made, can't be 100%, 100% of the time. If you run into any issue, simply shoot us an email and we'll take care of, no worries!
 
I think if I wanted to reinforce the stock attachment, I would use the screw, but I would install a hardwood dowel crosswise in the stock for the screw to bite into. Could be lateral, could be vertical. Neatly installed, it wouldn't look bad (appearance would be "functional") and would be stronger than the screw threads engaging only the chu wood. Might even consider a steel dowel and a machine screw.

The problem is one of fundamental design. Consider how other buttstocks are attached to receivers.
 
Tactical Imports said:
Any reported cases will have their rifles replaced free of charge :) Considering the number of rifles shipped, this is a very rare issue. These were extensively tested during development phase without issue, however like anything man-made, can't be 100%, 100% of the time. If you run into any issue, simply shoot us an email and we'll take care of, no worries!
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Great to know. Thanks TI.
 
tiriaq said:
I think if I wanted to reinforce the stock attachment, I would use the screw, but I would install a hardwood dowel crosswise in the stock for the screw to bite into. Could be lateral, could be vertical. Neatly installed, it wouldn't look bad (appearance would be "functional") and would be stronger than the screw threads engaging only the chu wood. Might even consider a steel dowel and a machine screw.

The problem is one of fundamental design. Consider how other buttstocks are attached to receivers.
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Steel dowel and machien screw is a great idea and one I floated around with. This would prove to be the strongest of all "fixes" in my opinion but would take alot more tinkering (might also look alittle more out of place depending how its doen)
 
Tactical Imports said:
Any reported cases will have their rifles replaced free of charge :) Considering the number of rifles shipped, this is a very rare issue. These were extensively tested during development phase without issue, however like anything man-made, can't be 100%, 100% of the time. If you run into any issue, simply shoot us an email and we'll take care of, no worries!
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This is very awesome to hear TI!!!!

Hopefully not too many of us need to use your warranty
 
tiriaq said:
I think if I wanted to reinforce the stock attachment, I would use the screw, but I would install a hardwood dowel crosswise in the stock for the screw to bite into. Could be lateral, could be vertical. Neatly installed, it wouldn't look bad (appearance would be "functional") and would be stronger than the screw threads engaging only the chu wood. Might even consider a steel dowel and a machine screw.

The problem is one of fundamental design. Consider how other buttstocks are attached to receivers.
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Totally agree.

It is nice to hear that TI offers a solution for the immediately impacted buyers. But there has to be a solution for everybody, just like a recall.


Besides, they get new rifles with the same problem.
 
I suspect most will eventually need warranty. Im mean just look at it lol you dont need woodworking experience to see how fragile the current systems is.

But on a lighter note I also think Bfiles screw job is a perfectly adequate solution.

Definitely drill a screw shank sized pilot hole like he did to avoid cracking the solid wood. And i would recommend a normal steel screw over brass cus brass are infamous for fracturing.
 
Murray 3-D said:
I suspect most will eventually need warranty. Im mean just look at it lol you dont need woodworking experience to see how fragile the current systems is.

But on a lighter note I also think Bfiles screw job is a perfectly adequate solution.

Definitely drill a screw shank sized pilot hole like he did to avoid cracking the solid wood. And i would recommend a normal steel screw over brass cus brass are infamous for fracturing.
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I think everything can be fixed, the question is, can you disassemble it later.
 
fritzhanzel said:
I think everything can be fixed, the question is, can you disassemble it later.
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I dont think tossing wood glue or epoxy into the threads is wise or necessary. Once u have 3 or 4 rotations of a wood screw, the tensile strength of that system is ridiculously strong.
 
Okay.

Not satisfied with “well enough” I took a trip to the hardware store and bought some tiny washers to try. I ended up using a 4mm flat washer.

When I put the washer under my 1 inch zinc wood screw the washer deformed nicely to the receiver; the wood stock and the receiver are locked well together at the top of the stock now.

I applied Gorilla glue to the threads and tightened it gingerly making sure not to pull any wood. The washer did not allow the receiver cover to sit back in the rear notch of the receiver, so I used a Dremel to flatten out the top part of the washer a bit, and I also used the Dremel to notch the receiver cover ever so slightly at the back.

A couple trial fits and they mated perfectly, and no modification is noticeable from the outside of the rifle.

A dab of cold-blue and it looks factory.

I’m quite pleased with it.
 
Snap pics for us.

Funny as I used my last bottle of Perma Blue to blue the Bolt carrier just earlier today and was thinking I should keep it for exactly what you did. Ohwell
 
Pics are from JeffMan and his mods

The washer he used -

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Looks clean. Nice and secure. I might add a washer aswell now
 
bigmouth said:
Another win for the sks. Still don't get why people drop almost 2 grand on this thing for 5 shots of 7.62 when a $400 sks will do the same and better.
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Thats OK, I don't understand why people spend the money for an SKS that is a ca.70 yo design that struggles to maintain minute of pie plate "accuracy".
 
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