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9/22/2017 12:11:25 AM
Posted: 12/6/2005 5:39:04 PM EDT
iwas just wondering if you guys are using a small rivet or just some red loctite? Just seein what methods are used.
Link Posted: 12/6/2005 6:11:06 PM EDT
I took a galvanized roofing nail and thinned it a little (to fit) with a file while it was chucked in my drill press. I cut it just a little longer than the diameter of the piston and peened down the ends. It takes longer to write this than to do the job.
One hint: on my first try I peened the nail down so hard that the piston wouldn't rock. I had to drill it out and redo.
Link Posted: 12/6/2005 7:51:32 PM EDT
16 penny nail.
Link Posted: 12/6/2005 8:23:10 PM EDT
good ideas guys. i just starting fittin my piston and irealized the crossbrace rivet from my tapco rivet set fits perfect. i just have to cut it to size and pound it in!!
Link Posted: 12/7/2005 8:44:47 AM EDT
I used a nail. Fit perfect and it was soft enough to buck very easily.
Link Posted: 12/7/2005 9:06:54 AM EDT
Put new gas piston in place
Insert punch through hole in carrier
Mash threads enough that it won't come out
Link Posted: 12/7/2005 9:34:23 AM EDT
I put in a new pin.

Link Posted: 12/9/2005 2:50:47 AM EDT
as mentioned before, roofing nails work great. they squish and peen just like the original pin. you can sand what's left down easy without taking much metal off the carrier..
Link Posted: 12/9/2005 3:39:27 AM EDT
I have a 2002 SAR 1 that looks like the piston is welded in. Screwed in tight. Does anyone know the best way to go about fixing this. Don't mean to step on your thread but kinda the same topic
Link Posted: 12/9/2005 11:23:58 AM EDT
Dremel off the weld, unscrew the piston, screw a new one in, back it off slightly and then drill it and put in a pin.
Link Posted: 12/12/2005 8:18:43 AM EDT
The welded piston is US made, no need to replace it.

Why Century welds them in, instead of pinning them, I'll never understand.
Link Posted: 12/14/2005 6:35:13 AM EDT
I used a section of coat hanger pounded into shape with a rock, in the best tradition of AK building.

Keep It Primitive
Link Posted: 12/15/2005 12:18:08 AM EDT

Originally Posted By JimTh:
Put new gas piston in place
Insert punch through hole in carrier
Mash threads enough that it won't come out

I thought I was the only one.
Link Posted: 12/25/2005 12:03:26 AM EDT
Would it be advantageous to replace the rigid SAR piston with a correctly installed one that wobbles like it was designed to do ?

I am redoing a Intrac MK II into a Romy AIMS-74 and I noticed that not only is the piston the same size as a 7.62 X39 piston, but it is welded also.
I bought a bunch of AK 74 pistons and noticed they are about 3/16 " shorter.

Which would be better in my MK II and why did the importer use an AK 47 piston instead of a AK 74 piston ?
Link Posted: 12/25/2005 8:41:30 PM EDT
I put a US piston in a 74 and never got around to pinning it.

1k plus rounds and it hasn't moved yet.

I have the correct size steel rod stock and plan to use that.

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