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1/25/2018 7:38:29 AM
Posted: 7/26/2003 4:27:26 AM EST
What lube are you using for pressing the barrel and trunion together?
Link Posted: 7/26/2003 6:21:50 AM EST
Link Posted: 7/30/2003 12:26:30 PM EST
How difficult is pressing the barrel into the trunion? Does it take an expert or 'smith?


Link Posted: 7/30/2003 12:47:20 PM EST
Link Posted: 7/30/2003 1:32:30 PM EST
I spoke to our Metalurgy Engineer about using heat to expand the the trunion to fit these pieces together.

He told me to heat the trunion in the oven to 500 deg.F for 15 minutes. Keep the barrel at room temperature. He said they should fit right together. I haven't tried it yet but, considering I don't want to spend $250 for a press and I can't find a local smith who'll do it for me, I'm running out of options. Sending the trunion and barrel out of town to be assembed is not an option. SAI left such a nasty taste in my mouth that I won't ever send a firearm out of town where I can reach it easily.

You can let me be the genie pig and I'll tell you how it turned out.
Link Posted: 7/30/2003 4:42:28 PM EST
Link Posted: 7/30/2003 9:10:41 PM EST
How do you get the spacing right? Are there spacers like there are for an AR?

Link Posted: 7/31/2003 11:56:51 AM EST
Headspacing on the AK has to be done with a guage of the correct caliber.
The method of heating the trunion is a start for aligning the gasport and seating the barrel to the trunion.
I suppose if the receiver was set up to take the bolt and carrier one could head space before it cools to room temp.
as a precaution I would check the headspace again when the receiver reaches room temp.
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