[Steve Anderson]

I just tried a trial fitting with my spare ORF side plate and it has a bow in it that is really going to create a problem, I have never seen one this bad! Should I attempt to straighten it? If so, what is the best way?

 

[phillip]

here ya go.


http://1919a4.com/forums/showthread.php?t=16411



Its about a dozen or so threads down from this one.

 

[Steve Anderson]

Orf RH Sideplate

I did not mention a bent or warped "Bottom Plate", I am talking about a really bent ORF right sideplate.

 

[bigblock]

I would just get creative with clamps, Big dowels, or make a jig with wood or metal and bend that sucker back straight. once Its close enough the rivet bucking bar and trunnion once you mock It up should force everything back to shape. When I mock The receiver up I measure with calipers corner to corner in the back opening to verify that Its square then mark my 8 bottom plate rivets with the proper drill.

 

[johnnyjt]

Bent RSP

I did not mention a bent or warped "Bottom Plate", I am talking about a really bent ORF right sideplate.

If you got it from ORF that way they should take it back and give a good one!

They sent me a nice one!

JohnnyJT
South Philly

 

[phillip]

I did not mention a bent or warped "Bottom Plate", I am talking about a really bent ORF right sideplate.

I stand corrected Sir, My humblest apologies to you.

 

[oprod]

side plate

it is really no problem.... no really its not. just block it up use c-clamps when you do your assembly and let the the rivits, top and bottom plates and the trunion straighten her out for you.

 

[blkbd]

As the old builders will tell you a bowed plate is not uncommon, And when I built mine I put a straight edge to everything and found that most parts where somewhere out of spec. Now build that gun with one bent part no biggie but build a gun with several bent parts and you magnafied the problem. When I finished my build I have no binding and the action is so smooth that I can run the gun with a 30-06 booster with the 308 barrel. Next time I will try it without the booster and only the bearing.

My plate was only bowed about a 1/8 of a inch but the 4130 plate was so tough that I had it flexing over a inch between to supports on my press to get it straight, I was amazed and can't remember if I took pics of it. If you can afford the $120 price tag then get a press of at least 12 tons and you will be amazed how often you will use it. Also straighten everything before you put together and don't rely on other parts and rivets to pull it together as I believe that you will only end up with bolt binding and other problems in the end. Just remember when these guns were first built they did not assemble them with bent parts.

 

[johnnymg]

Blkbd,when you straightened yours in the press where was the plate supported? near the ends or closer togeter? I attemted to straighten mine out on a press, flexed over an inch with the plate supported near the ends and the plate just sprung back? Any thoughts??

 

[blkbd]

since mine was in the middle I placed hardwood blocks at each end with about a inch of the plate on each end of the wood blocks, I kept a eye on the thinner section where the trunion mounts. I started a little at a time and had to do it over 8 times before it would spring back straight. Just have to work up to it. If a inch failed then press it 1 and 1/8 inches next time. I also let the plate sit under pressure for about 20 seconds before I released it and checked it with a straight edge. Good Luck

 

[Steve Anderson]

Bow is GONE

Did the press thing and got the bow down to about 1/32", clamped the parts all together, lined up the barrel shroud and the bolt slides really smooth. If I can get it rivited in this position it should turn out as well as my first build!